CN110350581A - A kind of electric car photovoltaic car shed system and its control method - Google Patents
A kind of electric car photovoltaic car shed system and its control method Download PDFInfo
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- CN110350581A CN110350581A CN201910625083.6A CN201910625083A CN110350581A CN 110350581 A CN110350581 A CN 110350581A CN 201910625083 A CN201910625083 A CN 201910625083A CN 110350581 A CN110350581 A CN 110350581A
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- 238000010248 power generation Methods 0.000 claims abstract description 25
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/50—Charging stations characterised by energy-storage or power-generation means
- B60L53/51—Photovoltaic means
-
- H02J3/385—
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
- H02J3/48—Controlling the sharing of the in-phase component
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention provides a kind of electric car photovoltaic car shed systems, it is characterised in that: including utility network, the utility network uses three-phase five-wire mode, including 3 phase lines；The electric car photovoltaic car shed system further includes multiple parking subsystems, and the single parking subsystem includes switching group control module, 3 charging groups, 3 DC/AC inverters, 3 power meters, multiple photovoltaic arrays, multiple DC/DC converters and multiple electronic switch sets；The present invention also provides a kind of control methods of electric car photovoltaic car shed system, mainly carry out rational allocation to supply unit according to the sufficient situation of photovoltaic power generation quantity, convey electric energy to utility network while to meet load cell charging.Using system and method for the present invention, while efficiently using photovoltaic electric energy, it also can be reduced the impact and influence on utility network, the problem of electric car unevenly parks the imbalance of three-phase voltage for causing utility network be effectively relieved, improve utility grid quality indirectly.
Description
Technical field
The present invention relates to technical field of photovoltaic power generation, especially a kind of electric car photovoltaic car shed system and its controlling party
Method.
Background technique
Currently, domestic electric automobile market demand helically formula ascendant trend, but it there is a problem that charging is difficult.Due to
Electric car photovoltaic carport can also be provided while meeting parking demand endlessly green electric power supply for electric car
Charging, therefore, photovoltaic carport starts to be applied more and more.
Usually with the grid-connected work of utility network, the photovoltaic power generation of photovoltaic carport exists existing electric car photovoltaic carport
It to be also incorporated to while being embodied as the charging of electric car three-phase utility network (alternating current).Utility network is three-phase five-wire mode, is removed
Outside A, B, C three-phase, tyre zero curve N and protective wire PE.When designing photovoltaic bicycle shed, to the charging pile under certain a line carport,
Usually with it is a certain corresponding in utility network three-phase, can thus avoid phase sequence confusion.However, actual use process
In, electric car is parked with randomness, when a large amount of electric cars concentrate under same driving canopy of same time charging, meeting
The wherein a certain phase load in power supply system three-phase is caused to increase, most extreme situation is, under certain a line or two row carports
The electric car in face is all within charging, and it is all idle to be left other row carports, it will causes not to three-phase utility network
Balance, that phase voltage for causing utility network load big sharply drop, at this point, if only simple to the electric energy of photovoltaic power generation
Averagely deploy or deploy it is unreasonable all will increase on the impact of utility network three-phase equilibrium and influence.When threephase load imbalance,
The transformer of utility grid is in asymmetric operation state, causes transformer loss and zero-sequence current excessive, localized metallic
Part heating is increased, and transformer is resulted even in when serious and is burnt, simultaneously as three-phase utility network also needs to supply to other users
Electricity, the three-phase imbalance of this utility network, it will the power supply of other users is impacted, for example makes the temperature of threephase motor
Degree rises, efficiency decline etc..
Summary of the invention
Aiming at the problem that background technique, the present invention provides a kind of electric car photovoltaic car shed system, while also providing one
Kind is directed to the control method of above system, grid-connected for electronic vapour using photovoltaic carport and utility network in the prior art to solve
When vehicle charges, electric energy unreasonable distribution and unbalanced problem is caused to utility network three-phase voltage.
To achieve the purpose of the present invention, the present invention provides a kind of electric car photovoltaic car shed system, innovative point exists
In: including utility network, the utility network uses three-phase five-wire mode, and the utility network includes 3 phase lines；The electronic vapour
Vehicle photovoltaic car shed system further includes multiple parking subsystems, and multiple parking subsystems are connect with utility network；
The single parking subsystem includes switching group control module, 3 charging groups, 3 DC/AC inverters, 3 power
Meter, multiple photovoltaic arrays, multiple DC/DC converters and multiple electronic switch sets；3 power meters and 3 charging groups correspond,
3 DC/AC inverters and 3 power meters correspond, and 3 phase lines of 3 DC/AC inverters and utility network correspond；
The multiple DC/DC converter and multiple photovoltaic arrays correspond, the multiple electronic switch set and multiple DC/DC converters
It corresponds；
The single charging group is made of multiple charging piles, the administrative multiple charging piles of single charging group with corresponding function
The exchange end of the connection of rate meter, the power meter and corresponding DC/AC inverter connects, the exchange end of the DC/AC inverter and
The corresponding phase line connection；The DC/DC converter is connected with corresponding photovoltaic array；The electronic switch set is provided with 1
A port T and 3 port S, the port T of electronic switch set are connected with corresponding DC/DC converter, 3 ends of electronic switch set
Mouth S is connect with the DC terminal of 3 DC/AC inverters respectively；
Control unit, DC/DC converter and the power meter of electronic switch set are connect with the switching group control module；
The photovoltaic array is for converting light energy into power output；
The converting direct-current power into alternating-current power that the DC/AC inverter can export photovoltaic array exports；
The DC/DC converter can carry out boosting inverter to the electric energy that photovoltaic array exports, meanwhile, DC/DC converter energy
The maximum power point of the corresponding photovoltaic array of real-time tracking, and the maximum power Value Data obtained in real time is transferred to switching group control
Molding block；
Power meter can obtain the load power value of corresponding charging group in real time, and the load power Value Data that will acquire is sent to
Switching group control module；
The switching group control module can handle the data received to obtain the control instruction of multiple electronic switch sets,
And multiple control instructions are sent respectively to the control unit of corresponding electronic switch set；
The electronic switch set can according to switching group control module issue control instruction will be in port T and 3 port S
One gating disconnects port T and 3 port S.
The present invention also provides a kind of control method for above-mentioned electric car photovoltaic car shed system, innovative point exists
In: the administrative multiple parking subsystems of the electric car photovoltaic car shed system respectively independently carry out control operation, individually stop
The control method of cart subsystem includes:
If individually parking subsystem is provided with m photovoltaic array, m DC/DC converter and m electronic switch set；It is opening
The rated disspation P of DC/AC inverter is stored in the group control module of passInverse consumptionThe rated disspation P of value and DC/DC converterStraight consumptionValue；It will
Stop 3 administrative P of subsystemInverse consumptionWith m PStraight consumptionThe sum of be denoted as total in-fighting PTotal consumption, i.e. PTotal consumption=3PInverse consumption+mPStraight consumption；
After the subsystem that stops starts,
(1) DC/DC converter obtains the maximum power of corresponding photovoltaic array power generation in real time, and by current maximum power
Value Data is transferred to switching group control module；M current maximum power Value Datas are transferred to out by m DC/DC converter respectively
Pass group control module；
(2) switching group control module carries out summation process to the m received current maximum power Value Datas, is stopped
The current power generation total amount P of subsystemTotal hair。
(3) switching group control module is to current power generation total amount PTotal hairWith total in-fighting PTotal consumptionIt is compared: working as PTotal hair≤PTotal consumption
When, enter step (four)；Work as PTotal hair> PTotal consumptionWhen, enter step (five)；
(4) the port T that switching group control module controls each electronic switch set is kept with corresponding 3 port S
It disconnects, return step (one)；
(5) power meter obtains the current load power of corresponding charging group, and the current load power value that will acquire in real time
Data are transferred to switching group control module, and 3 current load power Value Datas are transferred to switching group control respectively by 3 power meters
Molding block；
(6) switching group control module carries out summation process to the 3 load power Value Datas received, obtains current
Load general power PIt is total negative；
(7) switching group control module is obtained current effective output gross energy P by formula oneIt is total effective；Then, switching group control
Molding block is to current effective output gross energy PIt is total effectiveWith current load general power PIt is total negativeIt is compared: working as PIt is total effective> PIt is total negativeWhen,
It is controlled by method one；Work as PIt is total effective≤PIt is total negativeWhen, it is controlled by method two；
Then, return step (one)；
The formula one are as follows:
PIt is total effective=PTotal hair-PTotal consumption
The method one includes:
1) photovoltaic array and its corresponding DC/DC converter are denoted as a supply unit, supply unit with it is administrative
DC/DC converter corresponds to the same electronic switch set；The charging group and its corresponding power meter and DC/AC inverter are denoted as
One load cell；Switching group control module obtains the current calculating output energy of m supply unit respectively, wherein i-th of confession
It can the current calculating output energy P of unitI hair meterIt is obtained by formula two；Switching group control module obtains 3 load cells respectively and works as
Preceding calculated load power, wherein the current calculated load power P of j-th of load cellThe negative meter of jIt is obtained by formula three；
The formula two are as follows:
PI hair meter=PI hair-PI directly consumes
Wherein, the value range of i is 1 to m；PI hairThe maximum work currently to generate electricity for the administrative photovoltaic array of i-th of supply unit
Rate, PI directly consumesFor the rated disspation of the administrative DC/DC converter of i-th of supply unit；
The formula three are as follows:
PThe negative meter of j=PJ is negative+PThe inverse consumption of j
Wherein, the value range of j is 1 to 3；PJ is negativeFor the current load power of the administrative charging group of j-th of load cell, PThe inverse consumption of j
For the rated disspation of the administrative DC/AC inverter of j-th of load cell；
2) switching group control module is followed successively by 3 load cell allotment supply units, switching group control module by method three
The allotment that supply unit is often completed for 1 load cell, that is, control the end of electronic switch set corresponding to the supply unit being deployed
The port S gating that mouth T is connect with the administrative DC/AC inverter of corresponding load cell；
The method three are as follows:
Firstly, switching group control module exports energy by the calculating current to supply unit of 1 to m sequence according to formula four
It adds up one by one and obtains accumulative output energy PN is tired, often accumulate once the accumulative output energy P that will be obtainedN is tiredWith first load list
The calculated load power P of member1 negative meterIt is compared, until PN is tiredIt is equal to or just greater than P1 negative meter, i.e., this n supply unit is deployed to
First load cell；
Then, switching group control module is in a manner described that second load cell is adjusted using remaining supply unit
Match；
Then, switching group control module is in a manner described that third load cell is adjusted using remaining supply unit
Match；If all the accumulative output energy of residue supply unit were less than/were equal to/it is negative just greater than the calculating of third load cell
Remaining supply unit is then all deployed to third load cell by lotus power；It is energized if it is third load cell
After the completion of unit allotment, still there is remaining supply unit, then remaining supply unit is deployed to 3 load cells one by one, 3
Load cell sequentially cyclically receives the supply unit being deployed, and each load cell once only receives an energy supply being deployed
Unit, until to the last a supply unit is deployed completion；
The formula four are as follows:
Wherein, the value range of n is 1 to m；
The method two includes:
A) the current load power of the administrative charging group of load cell is accounted for current load general power PIt is total negativePercentage be denoted as
The load percentage P of load cellNegative ratio, switching group control module according to formula five obtain j-th of load cell load percentage
PThe negative ratio of j；The maximum power that the administrative photovoltaic array of supply unit currently generates electricity is accounted for current power generation total amount PTotal hairPercentage be denoted as
The generated energy percentage P of supply unitHair ratio, switching group control module according to formula six obtain i-th of supply unit generated energy hundred
Divide and compares PI sends out ratio；
The formula five are as follows:
The formula six are as follows:
B) switching group control module is followed successively by 3 load cell allotment supply units, switching group control module by method four
The allotment that supply unit is often completed for 1 load cell, that is, control the end of electronic switch set corresponding to the supply unit being deployed
The port S gating that mouth T is connect with the administrative DC/AC inverter of corresponding load cell；
The method four are as follows:
Firstly, switching group control module according to formula seven by 1 to m sequence one by one to the generated energy percentage of supply unit
It is added up to obtain the accumulative total of generating electricity percentage PN hair is than tired, often accumulate once the accumulative total of generating electricity percentage P that will be obtainedN hair is than tiredWith
The load percentage P of first load cell1 negative ratioIt is compared, until PN hair is than tiredIt is equal to or just greater than P1 negative ratio, i.e., this n is supplied
Energy unit distributes to first load cell；
The formula seven are as follows:
Then, switching group control module is in a manner described that second load cell is adjusted using remaining supply unit
Match；
Then, remaining supply unit is all deployed to third load cell by switching group control module.
The principle of the invention lies in: inventor starts with to solve problem of the prior art in terms of following two: due to causing
The main reason for utility network three-phase imbalance, is that the load i.e. electric car of each charging group is unbalanced, so being root first
Meet the electrical energy demands of each charging group according to the uneven rational allocation photovoltaic power generation energy of above-mentioned load, while reducing to public
The impact of power grid leads to utility network three-phase imbalance；Simultaneously as the energy size of photovoltaic power generation has with illumination intensity
It closes, the present invention uses different power adjustment modes whether being directed to the abundance of photovoltaic power generation electric energy, meets different bear for greater flexibility
The demand of the charging group of lotus size, while balancing the remaining electric electric energy of injection utility network three-phase.
Specifically, as long as the photovoltaic power generation total amount P of parking subsystemTotal hairGreater than total in-fighting PTotal consumption, can be by photovoltaic power generation
Electric energy for electric car charge and utility network use.
When intensity of illumination is big, photovoltaic power generation is sufficient, the effective output gross energy P for the subsystem that stopsIt is total effectiveGreater than load total work
Rate PIt is total negativeWhen, parking subsystem takes the mode of " generating power for their own use, remaining electricity online " to deploy the electric energy of photovoltaic power generation.Root first
Different size according to 3 load cell loads is that 3 load cells successively deploy different photovoltaic electric energy, to meet 3 loads
It is then deployment unit by supply unit, one by one uniformly for extra photovoltaic electric energy by the charging load of the charging pile of unit
Ground cycle assignment gives 3 load cells, due to the administrative charging group electric energy saturation of short time internal loading unit, extra photovoltaic electric
It just can equably be uploaded in three phase lines of utility network for its use, meet charging load and utility network to light
While lying prostrate gas-to electricity, the three-phase voltage of utility network will not also be balanced and cause to impact and influence.
When intensity of illumination is weak, photovoltaic power generation is more inadequate, the effective output gross energy P for the subsystem that stopsIt is total effectiveIt is less than or waits
In load general power PIt is total negativeWhen, since photovoltaic electric energy is insufficient for the demand of load, the electric energy of photovoltaic power generation and utility network
Electric energy will charge jointly for load.In order to reduce the unbalanced electricity for causing utility network three-phase due to each load cell load
Press unbalanced, the allotment of the electric energy of photovoltaic power generation is carried out by the way of directly proportional to payload, to the biggish load list of load
Member deploys more photovoltaic electric energy, less photovoltaic electric energy is deployed to the lesser load cell of load, to alleviate public power as far as possible
The three-phase of net is unbalanced.
It can be seen that being had below the utility model has the advantages that since parking subsystem can be according to each using method of the invention
The payload of load cell can be carried out allotment to photovoltaic electric, so can be while efficiently using photovoltaic electric energy, moreover it is possible to reduce
On the impact of utility network and influence, the three-phase voltage injustice that electric car unevenly parks bring utility network is effectively relieved
The problem of weighing apparatus, to improve utility grid quality indirectly.
Detailed description of the invention
Detailed description of the invention of the invention is as follows.
Attached drawing 1 is the connection schematic diagram of hardware involved in the present invention；
Attached drawing 2 is the structural schematic diagram of parking subsystem.
In figure: 1, switching group control module；2, charging group；3, DC/AC inverter；4, power meter；5, photovoltaic array；6,
DC/DC converter；7, electronic switch set.
Specific embodiment
Below with reference to embodiment, the invention will be further described.
Electric car photovoltaic car shed system of the present invention as depicted in figs. 1 and 2, including utility network, it is described
Utility network uses three-phase five-wire mode, and the utility network includes this 3 phase lines of A, B, C and zero curve N and protective wire PE；The electricity
Electrical automobile photovoltaic car shed system further includes multiple parking subsystems, the number of the subsystem that stops can according to the size in parking lot and
To determine, multiple parking subsystems are connect with utility network for planning；
The single parking subsystem includes the charging group 2,3 DC/AC inverter 3,3 of switching group control module 1,3
Power meter 4, multiple photovoltaic arrays 5, multiple DC/DC converters 6 and multiple electronic switch sets 7；3 power meter 4 and 3 charging groups
2 correspond, and 3 DC/AC inverter 3 and 3 power meters 4 correspond, and 3 of 3 DC/AC inverters 3 and utility network
Phase line corresponds；The multiple DC/DC converter 6 is corresponded with multiple photovoltaic arrays 5, the multiple electronic switch set 7
It is corresponded with multiple DC/DC converters 6；
The single charging group 2 is made of multiple charging piles, the administrative multiple charging piles of single charging group 2 with it is corresponding
Power meter 4 connects, and the power meter 4 is connected with the exchange end of corresponding DC/AC inverter 3, the friendship of the DC/AC inverter 3
End is flowed to connect with the corresponding phase line；The DC/DC converter 6 is connected with corresponding photovoltaic array 5；The electronic switch set
7 are provided with 1 port T and 3 port S, and the port T of electronic switch set 7 is connected with corresponding DC/DC converter 6, electronic switch
3 port S of group 7 are connect with the DC terminal of 3 DC/AC inverters 3 respectively；
Control unit, DC/DC converter 6 and the power meter 4 of electronic switch set 7 are connect with the switching group control module 1；
The photovoltaic array 5 is for converting light energy into power output；
The DC/AC inverter 3 can export the converting direct-current power into alternating-current power that photovoltaic array 5 exports；
The DC/DC converter 6 can carry out boosting inverter to the electric energy that photovoltaic array 5 exports, meanwhile, described in the present embodiment
DC/DC converter 6 include MPPT controller (i.e. MPPT maximum power point tracking solar energy function control device), can real-time tracking it is corresponding
Photovoltaic array 5 maximum power point, and the maximum power Value Data obtained in real time is transferred to switching group control module 1；
Power meter 4 can obtain the load power value of corresponding charging group 2 in real time, and the load power Value Data that will acquire is sent
To switching group control module 1；
The control that the switching group control module 1 can be handled the data received to obtain multiple electronic switch sets 7 refers to
It enables, and multiple control instructions is sent respectively to the control unit of corresponding electronic switch set 7；
The electronic switch set 7 can according to switching group control module 1 issue control instruction will be in port T and 3 port S
One gating or port T and 3 port S are disconnected, in the present embodiment, the electronic switch of electronic switch set is opened using IGBT
It closes, the response time of the switch quickly, can also use the electronic switch of other prior arts.
For above-mentioned electric car photovoltaic car shed system, the present invention also provides a kind of control methods:
The administrative multiple parking subsystems of the electric car photovoltaic car shed system respectively independently carry out control operation, this
The benefit that sample is done be can according to vehicle to be charged number start more or close part parking subsystem, to adapt to vehicle
The random variation of quantity.Individually the control method of parking subsystem includes:
If individually parking subsystem is provided with m photovoltaic array 5, m DC/DC converter 6 and m electronic switch set 7；Electricity
The port T of sub switch group 7 is disposed as normally opened with 3 port S original states；DC/AC is stored in switching group control module 1
The rated disspation P of inverter 3Inverse consumptionThe rated disspation P of value and DC/DC converter 6Straight consumptionValue；By 3 administrative P of the subsystem that stopsInverse consumption
With m PStraight consumptionThe sum of be denoted as total in-fighting PTotal consumption, i.e. PTotal consumption=3PInverse consumption+mPStraight consumption；
After the subsystem that stops starts,
(1) DC/DC converter 6 obtains the maximum power that corresponding photovoltaic array 5 generates electricity in real time, and by current maximum work
Rate Value Data is transferred to switching group control module 1；M DC/DC converter 6 is respectively by m current maximum power Value Data transmission
To switching group control module 1；
(2) switching group control module 1 carries out summation process to the m received current maximum power Value Datas, is stopped
The current power generation total amount P of subsystemTotal hair。
(3) switching group control module 1 is to current power generation total amount PTotal hairWith total in-fighting PTotal consumptionIt is compared: working as PTotal hair≤PTotal consumption
When, enter step (four)；Work as PTotal hair> PTotal consumptionWhen, enter step (five)；
(4) the port T that switching group control module 1 controls each electronic switch set 7 is protected with corresponding 3 port S
Hold disconnection, return step (one)；
(5) power meter 4 obtains the current load power of corresponding charging group 2, and the current load power that will acquire in real time
Value Data is transferred to 1,3 power meters 4 of switching group control module and 3 current load power Value Datas is transferred to switch respectively
Group control module 1；
(6) switching group control module 1 carries out summation process to the 3 load power Value Datas received, obtains current
Load general power PIt is total negative；
(7) switching group control module 1 is obtained current effective output gross energy P by formula oneIt is total effective；Then, switching group control
Molding block 1 is to current effective output gross energy PIt is total effectiveWith current load general power PIt is total negativeIt is compared: working as PIt is total effective> PIt is total negativeWhen,
It is controlled by method one；Work as PIt is total effective≤PIt is total negativeWhen, it is controlled by method two；
Then, return step (one)；
The formula one are as follows:
PIt is total effective=PTotal hair-PTotal consumption
The method one includes:
1) photovoltaic array 5 and its corresponding DC/DC converter 6 are denoted as a supply unit, supply unit and institute
Have jurisdiction over the corresponding same electronic switch set 7 of DC/DC converter 6；By the charging group 2 and its corresponding power meter 4 and DC/AC inversion
Device 3 is denoted as a load cell；Switching group control module 1 obtains the current calculating output energy of m supply unit respectively,
In, the current calculating of i-th of supply unit exports energy PI hair meterIt is obtained by formula two；Switching group control module 1 obtains 3 respectively
The current calculated load power of load cell, wherein the current calculated load power P of j-th of load cellThe negative meter of jIt is obtained by formula three
It takes；
The formula two are as follows:
PI hair meter=PI hair-PI directly consumes
Wherein, the value range of i is 1 to m；PI hairThe maximum currently to generate electricity for the administrative photovoltaic array 5 of i-th of supply unit
Power, PI directly consumesFor the rated disspation of the administrative DC/DC converter 6 of i-th of supply unit；
The formula three are as follows:
PThe negative meter of j=PJ is negative+PThe inverse consumption of j
Wherein, the value range of j is 1 to 3；PJ is negativeFor the current load power of the administrative charging group 2 of j-th of load cell,
PThe inverse consumption of jFor the rated disspation of the administrative DC/AC inverter 3 of j-th of load cell；
2) switching group control module 1 is followed successively by 3 load cell allotment supply units, switching group control module by method three
1 completes the allotment of supply unit often for 1 load cell, that is, controls electronic switch set 7 corresponding to the supply unit being deployed
The port S gating that port T is connect with the administrative DC/AC inverter 3 of corresponding load cell, i.e., provide the supply unit being deployed
Electric energy is transferred to corresponding load cell or the corresponding phase line of utility network by DC/AC inverter 3；
The method three are as follows:
Firstly, switching group control module 1 exports energy by the calculating current to supply unit of 1 to m sequence according to formula four
Amount adds up one by one obtains accumulative output energy PN is tired, often accumulate once the accumulative output energy P that will be obtainedN is tiredWith first load
The calculated load power P of unit1 negative meterIt is compared, until PN is tiredIt is equal to or just greater than P1 negative meter, i.e., by this n supply unit allotment
To first load cell；Then it is dynamic to control the administrative n electronic switch set 7 of this n functional unit for switching group control module 1
Make, the port S that the port T of this n electronic switch set 7 is connect with the administrative DC/AC inverter 3 of first load cell is selected
It is logical；
Then, switching group control module 1 is in a manner described second load cell using remaining m-n supply unit
It is deployed；Such as x supply unit is deployed to second load cell, then switching group control module 1 controls this x function
Can unit it is administrative x electronic switch set 7 movement, by the port T of this x electronic switch set 7 with second load cell institute
Have jurisdiction over the port S gating that DC/AC inverter 3 connects；
Then, switching group control module 1 is in a manner described third load list using remaining m-n-x supply unit
Member is deployed；Such as y functional unit is deployed to third load cell；If adding up for whole residue supply units is defeated
Energy is less than out, and/being equal to/is just greater than the calculated load power of third load cell, then all deploys remaining supply unit
Third load cell is given, at this time m-n-x=y, then switching group control module 1 controls y administrative electricity of this y functional unit
Sub switch group 7 acts, and the port T of this y electronic switch set 7 is connect with the administrative DC/AC inverter 3 of third load cell
Port S gating；
After the completion of carrying out supply unit allotment if it is third load cell, still there are remaining supply unit, i.e. m-n-x
> y, then be deployed to 3 load cells for remaining m-n-x-y supply unit one by one, and 3 load cells sequentially cyclically receive
The supply unit being deployed, each load cell once only receive a supply unit being deployed, to the last an energy supply
Until unit is deployed completion；Equally, one supply unit of every allotment, switching group control module 1 control this functional unit institute
The electronic switch set 7 of linchpin acts, by the port T of this electronic switch set 7 and the administrative DC/AC inverter 3 of corresponding load cell
The port S of connection is gated；
The formula four are as follows:
Wherein, the value range of n is 1 to m；
The method two includes:
A the current load power of the administrative charging group 2 of load cell) is accounted for into current load general power PIt is total negativePercentage note
For the load percentage P of load cellNegative ratio, switching group control module 1 according to formula five obtain j-th of load cell load hundred
Divide and compares PThe negative ratio of j；The maximum power that the administrative photovoltaic array 5 of supply unit currently generates electricity is accounted for current power generation total amount PTotal hairPercentage
It is denoted as the generated energy percentage P of supply unitHair ratio, switching group control module 1 according to formula six obtain i-th of supply unit hair
Electricity percentage PI sends out ratio；
The formula five are as follows:
The formula six are as follows:
B) switching group control module 1 is followed successively by 3 load cell allotment supply units, switching group control module by method four
1 completes the allotment of supply unit often for 1 load cell, that is, controls electronic switch set 7 corresponding to the supply unit being deployed
The port S gating that port T is connect with the administrative DC/AC inverter 3 of corresponding load cell；
The method four are as follows:
Firstly, switching group control module 1 according to formula seven by 1 to m sequence one by one to the generated energy percentage of supply unit
Than being added up to obtain the accumulative total of generating electricity percentage PN hair is than tired, often accumulate once the accumulative total of generating electricity percentage P that will be obtainedN hair is than tired
With the load percentage P of first load cell1 negative ratioIt is compared, until PN hair is than tiredIt is equal to or just greater than P1 negative ratio, i.e., by this n
Supply unit distributes to first load cell；
The formula seven are as follows:
Then, switching group control module 1 is in a manner described that second load cell carries out using remaining supply unit
Allotment；
Then, remaining supply unit is all deployed to third load cell by switching group control module 1.
Claims (2)
1. a kind of electric car photovoltaic car shed system, it is characterised in that: including utility network, the utility network uses three-phase
Five-wire system, the utility network include 3 phase lines；The electric car photovoltaic car shed system further includes multiple parking subsystems
System, multiple parking subsystems are connect with utility network；
The single parking subsystem includes switching group control module (1), 3 charging groups (2), 3 DC/AC inverters (3), 3
A power meter (4), multiple photovoltaic arrays (5), multiple DC/DC converters (6) and multiple electronic switch sets (7)；3 power meters
(4) it is corresponded with 3 charging groups (2), 3 DC/AC inverters (3) correspond with 3 power meters (4), and 3 DC/AC are inverse
3 phase lines for becoming device (3) and utility network correspond；The multiple DC/DC converter (6) and multiple photovoltaic arrays (5) one
One is corresponding, and the multiple electronic switch set (7) and multiple DC/DC converters (6) correspond；
The single charging group (2) is made of multiple charging piles, the administrative multiple charging piles of single charging group (2) with it is corresponding
Power meter (4) connection, the power meter (4) connect with the exchange end of corresponding DC/AC inverter (3), the DC/AC inverter
(3) exchange end is connected with the corresponding phase line；The DC/DC converter (6) connects with corresponding photovoltaic array (5)；Institute
It states electronic switch set (7) and is provided with 1 port T and 3 port S, the port T of electronic switch set (7) is converted with corresponding DC/DC
Device (6) connection, 3 port S of electronic switch set (7) are connect with the DC terminal of 3 DC/AC inverters (3) respectively；
Control unit, DC/DC converter (6) and the power meter (4) of electronic switch set (7) with the switching group control module (1)
Connection；
The photovoltaic array (5) is for converting light energy into power output；
The converting direct-current power into alternating-current power that the DC/AC inverter (3) can export photovoltaic array (5) exports；
The DC/DC converter (6) can carry out boosting inverter to the electric energy that photovoltaic array (5) export, meanwhile, DC/DC converter
(6) maximum power point of the corresponding photovoltaic array (5) of energy real-time tracking, and the maximum power Value Data obtained in real time is transferred to
Switching group control module (1)；
Power meter (4) can obtain the load power value of corresponding charging group (2) in real time, and the load power Value Data that will acquire is sent
Give switching group control module (1)；
The control that the switching group control module (1) can be handled the data received to obtain multiple electronic switch sets (7) refers to
It enables, and multiple control instructions is sent respectively to the control unit of corresponding electronic switch set (7)；
The electronic switch set (7) can according to switching group control module (1) issue control instruction will be in port T and 3 port S
One gating or port T and 3 port S are disconnected.
2. a kind of control method of electric car photovoltaic car shed system, it is characterised in that: related hardware includes public power
Net, the utility network use three-phase five-wire mode, and the utility network includes 3 phase lines；The electric car photovoltaic carport
System further includes multiple parking subsystems, and multiple parking subsystems are connect with utility network；
The single parking subsystem includes switching group control module (1), 3 charging groups (2), 3 DC/AC inverters (3), 3
A power meter (4), multiple photovoltaic arrays (5), multiple DC/DC converters (6) and multiple electronic switch sets (7)；3 power meters
(4) it is corresponded with 3 charging groups (2), 3 DC/AC inverters (3) correspond with 3 power meters (4), and 3 DC/AC are inverse
3 phase lines for becoming device (3) and utility network correspond；The multiple DC/DC converter (6) and multiple photovoltaic arrays (5) one
One is corresponding, and the multiple electronic switch set (7) and multiple DC/DC converters (6) correspond；
The single charging group (2) is made of multiple charging piles, the administrative multiple charging piles of single charging group (2) with it is corresponding
Power meter (4) connection, the power meter (4) connect with the exchange end of corresponding DC/AC inverter (3), the DC/AC inverter
(3) exchange end is connected with the corresponding phase line；The DC/DC converter (6) connects with corresponding photovoltaic array (5)；Institute
It states electronic switch set (7) and is provided with 1 port T and 3 port S, the port T of electronic switch set (7) is converted with corresponding DC/DC
Device (6) connection, 3 port S of electronic switch set (7) are connect with the DC terminal of 3 DC/AC inverters (3) respectively；
Control unit, DC/DC converter (6) and the power meter (4) of electronic switch set (7) with the switching group control module (1)
Connection；
The photovoltaic array (5) is for converting light energy into power output；
The converting direct-current power into alternating-current power that the DC/AC inverter (3) can export photovoltaic array (5) exports；
The DC/DC converter (6) can carry out boosting inverter to the electric energy that photovoltaic array (5) export, meanwhile, DC/DC converter
(6) maximum power point of the corresponding photovoltaic array (5) of energy real-time tracking, and the maximum power Value Data obtained in real time is transferred to
Switching group control module (1)；
Power meter (4) can obtain the load power value of corresponding charging group (2) in real time, and the load power Value Data that will acquire is sent
Give switching group control module (1)；
The control that the switching group control module (1) can be handled the data received to obtain multiple electronic switch sets (7) refers to
It enables, and multiple control instructions is sent respectively to the control unit of corresponding electronic switch set (7)；
The electronic switch set (7) can according to switching group control module (1) issue control instruction will be in port T and 3 port S
One gating or port T and 3 port S are disconnected；
The control method includes:
The administrative multiple parking subsystems of the electric car photovoltaic car shed system respectively independently carry out control operation, individually stop
The control method of cart subsystem includes:
If individually parking subsystem is provided with m photovoltaic array (5), m DC/DC converter (6) and m electronic switch set (7)；
The rated disspation P of DC/AC inverter (3) is stored in switching group control module (1)Inverse consumptionThe volume of value and DC/DC converter (6)
Determine power consumption PStraight consumptionValue；By 3 administrative P of the subsystem that stopsInverse consumptionWith m PStraight consumptionThe sum of be denoted as total in-fighting PTotal consumption, i.e. PTotal consumption=3PInverse consumption+
mPStraight consumption；
After the subsystem that stops starts,
(1) DC/DC converter (6) obtains the maximum power of corresponding photovoltaic array (5) power generation in real time, and by current maximum work
Rate Value Data is transferred to switching group control module (1)；M DC/DC converter (6) is respectively by m current maximum power Value Datas
It is transferred to switching group control module (1)；
(2) switching group control module (1) carries out summation process to the m received current maximum power Value Datas, obtains parking
The current power generation total amount P of systemTotal hair。
(3) switching group control module (1) is to current power generation total amount PTotal hairWith total in-fighting PTotal consumptionIt is compared: working as PTotal hair≤PTotal consumptionWhen,
Enter step (four)；Work as PTotal hair> PTotal consumptionWhen, enter step (five)；
(4) the port T that switching group control module (1) controls each electronic switch set (7) is protected with corresponding 3 port S
Hold disconnection, return step (one)；
(5) power meter (4) obtains corresponding charging group (2) current load power, and the current load power that will acquire in real time
Value Data is transferred to switching group control module (1), and 3 current load power Value Datas are transferred to by 3 power meters (4) respectively
Switching group control module (1)；
(6) switching group control module (1) carries out summation process to the 3 load power Value Datas received, obtains current
Load general power PIt is total negative；
(7) switching group control module (1) is obtained current effective output gross energy P by formula oneIt is total effective；Then, switching group controls
Module (1) is to current effective output gross energy PIt is total effectiveWith current load general power PIt is total negativeIt is compared: working as PIt is total effective>PIt is total negativeWhen,
It is controlled by method one；Work as PIt is total effective≤PIt is total negativeWhen, it is controlled by method two；
Then, return step (one)；
The formula one are as follows:
PIt is total effective=PTotal hair-PTotal consumption
The method one includes:
1) photovoltaic array (5) and its corresponding DC/DC converter (6) are denoted as a supply unit, supply unit and institute
Have jurisdiction over DC/DC converter (6) corresponding same electronic switch set (7)；By the charging group (2) and its corresponding power meter (4) and
DC/AC inverter (3) is denoted as a load cell；Switching group control module (1) obtains the current calculating of m supply unit respectively
Export energy, wherein the current calculating of i-th of supply unit exports energy PI hair meterIt is obtained by formula two；Switching group control module
(1) the current calculated load power of 3 load cells is obtained respectively, wherein the current calculated load power of j-th of load cell
PThe negative meter of jIt is obtained by formula three；
The formula two are as follows:
PI hair meter=PI hair-PI directly consumes
Wherein, the value range of i is 1 to m；PI hairThe maximum work currently to generate electricity for the administrative photovoltaic array of i-th of supply unit (5)
Rate, PI directly consumesFor the rated disspation of the administrative DC/DC converter (6) of i-th of supply unit；
The formula three are as follows:
PThe negative meter of j=PJ is negative+PThe inverse consumption of j
Wherein, the value range of j is 1 to 3；PJ is negativeFor the current load power of the administrative charging group of j-th of load cell (2), PThe inverse consumption of j
For the rated disspation of the administrative DC/AC inverter (3) of j-th of load cell；
2) switching group control module (1) is followed successively by 3 load cell allotment supply units, switching group control module by method three
(1) allotment that supply unit is often completed for 1 load cell, that is, control electronic switch set corresponding to the supply unit being deployed
(7) the port S gating that port T is connect with the administrative DC/AC inverter (3) of corresponding load cell；
The method three are as follows:
Firstly, switching group control module (1) exports energy by the calculating current to supply unit of 1 to m sequence according to formula four
It adds up one by one and obtains accumulative output energy PN is tired, often accumulate once the accumulative output energy P that will be obtainedN is tiredWith first load list
The calculated load power P of member1 negative meterIt is compared, until PN is tiredIt is equal to or just greater than P1 negative meter, i.e., this n supply unit is deployed to
First load cell；
Then, switching group control module (1) is in a manner described that second load cell is adjusted using remaining supply unit
Match；
Then, switching group control module (1) is in a manner described that third load cell is adjusted using remaining supply unit
Match；If all the accumulative output energy of residue supply unit were less than/were equal to/it is negative just greater than the calculating of third load cell
Remaining supply unit is then all deployed to third load cell by lotus power；It is energized if it is third load cell
After the completion of unit allotment, still there is remaining supply unit, then remaining supply unit is deployed to 3 load cells one by one, 3
Load cell sequentially cyclically receives the supply unit being deployed, and each load cell once only receives an energy supply being deployed
Unit, until to the last a supply unit is deployed completion；
The formula four are as follows:
Wherein, the value range of n is 1 to m；
The method two includes:
The current load power of the administrative charging group of load cell (2) A) is accounted for current load general power PIt is total negativePercentage be denoted as
The load percentage P of load cellNegative ratio, switching group control module (1) according to formula five obtain j-th of load cell load hundred
Divide and compares PThe negative ratio of j；The maximum power that the administrative photovoltaic array of supply unit (5) currently generates electricity is accounted for current power generation total amount PTotal hairPercentage
Than the generated energy percentage P for being denoted as supply unitHair ratio, switching group control module (1) is according to i-th of the supply unit of acquisition of formula six
Generated energy percentage PI sends out ratio；
The formula five are as follows:
The formula six are as follows:
B) switching group control module (1) is followed successively by 3 load cell allotment supply units, switching group control module by method four
(1) allotment that supply unit is often completed for 1 load cell, that is, control electronic switch set corresponding to the supply unit being deployed
(7) the port S gating that port T is connect with the administrative DC/AC inverter (3) of corresponding load cell；
The method four are as follows:
Firstly, switching group control module (1) according to formula seven by 1 to m sequence one by one to the generated energy percentage of supply unit
It is added up to obtain the accumulative total of generating electricity percentage PN hair is than tired, often accumulate once the accumulative total of generating electricity percentage P that will be obtainedN hair is than tiredWith
The load percentage P of first load cell1 negative ratioIt is compared, until PN hair is than tiredIt is equal to or just greater than P1 negative ratio, i.e., this n is supplied
Energy unit distributes to first load cell；
The formula seven are as follows:
Then, switching group control module (1) is in a manner described that second load cell is adjusted using remaining supply unit
Match；
Then, remaining supply unit is all deployed to third load cell by switching group control module (1).
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Effective date of registration: 20240313 Address after: Building 2, No.1 Hangfeng Road, Fengtai District, Beijing, 100070, 918-10 Patentee after: Beijing Speed Vision Technology Co.,Ltd. Country or region after: China Address before: 402247 No. 1 Fuxing Road, Shuang Fu New District, Jiangjin District, Chongqing. Patentee before: CHONGQING JIAOTONG University Country or region before: China |