CN104578123B - A kind of micro-grid system control method for improving robustness - Google Patents
A kind of micro-grid system control method for improving robustness Download PDFInfo
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- CN104578123B CN104578123B CN201310469550.3A CN201310469550A CN104578123B CN 104578123 B CN104578123 B CN 104578123B CN 201310469550 A CN201310469550 A CN 201310469550A CN 104578123 B CN104578123 B CN 104578123B
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000004146 energy storage Methods 0.000 claims abstract description 85
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 53
- 238000012544 monitoring process Methods 0.000 claims abstract description 36
- 230000010354 integration Effects 0.000 claims abstract description 17
- 230000002265 prevention Effects 0.000 claims abstract description 17
- 230000005611 electricity Effects 0.000 claims description 26
- 238000010248 power generation Methods 0.000 claims description 15
- 238000007599 discharging Methods 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 3
- 230000009466 transformation Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 206010033799 Paralysis Diseases 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
Classifications
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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
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
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- H02J3/382—
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/14—District level solutions, i.e. local energy networks
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention belongs to new energy micro-capacitance sensor technical field, and in particular to the micro-grid system framework and energy control method of a kind of raising robustness.The present invention overcharges control with protection voltage battery parameter value using being respectively provided with first and overcharge protection control point voltage battery parameter value Vic and second and overcharge protection and perform the double of point voltage battery parameter value Vie,And the first Cross prevention control point voltage battery parameter value Voc and the second Cross prevention are set perform double mistake of point voltage battery parameter value Voe and put control with protection voltage parameter,Micro-capacitance sensor monitoring system makes VF batteries be operated in the interval of voltage battery parameter value Vic and Voc by controlling VF bidirectional energy-storage inverters,Enable micro-grid system before monitoring and execution are overcharged or Cross prevention is shut down,VF bidirectional energy-storage inverters are controlled respectively by monitoring order wire by micro-capacitance sensor monitoring system,Photovoltaic combining inverter,Wind-electricity integration inverter,PQ bidirectional energy-storage inverters,The energy supply of AC power distribution cabinet/AC distribution panel,Energy storage and the power with energy,Microgrid energy is reached to balance within reliable range of operation,Ensure that the continuous service of micro-grid system.
Description
Technical field
The invention belongs to new energy micro-capacitance sensor technical field, and in particular to a kind of micro-grid system control of raising robustness
Method.
Background technology
Micro-capacitance sensor is one of major way of new energy electric power application, due to micro-capacitance sensor particularly off-network type or independent operating
Micro-capacitance sensor or many power supply electricity generating and supplying systems, its operation mainly supports micro-capacitance sensor, and the key of support unit by voltage source
Equipment is that the energy-storage units based on bidirectional energy-storage inverter are operated under VF patterns, but energy-storage units are when operating in VF patterns,
Energy storage is uncontrolled, i.e., the charge and discharge of batteries can not be controlled, so, in new energy electric power micro-capacitance sensor, due to hair
The unpredictable factor such as unstable and electricity consumption the fluctuation of electricity and change so that energy-storage units often occur unpredictable overcharging
Or cross and put situation, being this prior art single overcharges that protection performs point voltage parameter Vi and single Cross prevention is performed using setting
Point voltage battery parameter value Voe, by monitoring with perform overcharge or Cross prevention shutdown measure and scheme prevent energy-storage units from sending out
Overcharging or crossing to put for raw battery is caused to damage, but is overcharged or Cross prevention shutdown using single, and micro-capacitance sensor can be caused to lose
The electric power of support is removed, the micro-grid system framework extremely fragility of prior art is easy to paralysis.
The content of the invention
In order to overcome prior art due to energy-storage units run as VF voltage sources when, because discharge and recharge is uncontrolled and caused by it is micro-
Power network occurs the major defect of unpredictable paralysis of stopping transport, and the present invention proposes a kind of micro-grid system control for improving robustness
Method, including：Micro-capacitance sensor monitoring system, the first bidirectional energy-storage inverter, photovoltaic combining inverter, wind-electricity integration inverter, friendship
Stream power distribution cabinet, the first batteries, photovoltaic power generation array, wind-driven generator, micro-capacitance sensor power line, monitoring order wire, the first storage
Can step-up transformer, photovoltaic step-up transformer, wind-powered electricity generation step-up transformer, user's step-down transformer, user load, the second energy storage liter
Pressure transformer, the second batteries and the second bidirectional energy-storage inverter, it is characterized in that：
The first bidirectional energy-storage inverter is connected by the first batteries and micro- electricity is accessed by the first energy storage step-up transformer
Net power line, constitutes the electrical path that voltage source electricity energy storage energy supply accesses micro-capacitance sensor；
The second bidirectional energy-storage inverter is connected by the second batteries and micro- electricity is accessed by the second energy storage step-up transformer
Net power line, constitutes the electrical path that current source energy storage energy supply accesses micro-capacitance sensor；
Photovoltaic combining inverter is connected by photovoltaic power generation array and micro-capacitance sensor power line is accessed by photovoltaic step-up transformer,
Constitute the electrical path that light generator unit accesses micro-capacitance sensor；
Wind-electricity integration inverter is connected by wind-driven generator and micro-capacitance sensor power line, structure are accessed by wind-powered electricity generation step-up transformer
Micro-capacitance sensor electrical path is accessed into wind-power generation unit；
User load connects AC power distribution cabinet/AC distribution panel and accesses micro-capacitance sensor power line by user's step-down transformer, constitutes user and uses
Electric electrical path；
Micro-capacitance sensor monitoring system connects the first bidirectional energy-storage inverter, photovoltaic grid-connected inversion respectively by monitoring order wire
Device, wind-electricity integration inverter, the second bidirectional energy-storage inverter, AC power distribution cabinet/AC distribution panel, constitute micro-capacitance sensor monitoring communication link；
Its control method is：First batteries connect the first bidirectional energy-storage inverter as energy-storage units with voltage source VF
The mode of pattern is run, and first the first Cross prevention of batteries control point voltage battery parameter value Voc of setting and second is crossed and put guarantor
Shield perform point a voltage battery parameter value Voe and first overcharge protection control point voltage battery parameter value Vic and second overcharge protection perform point electricity
Pressure parameter value Vie, and meet：
Voc≤Vw≤Vic；
Voc-Voe≥Vt1；
Vie-Vic≥Vt2；
Wherein：Vw is the present operating voltage parameter of the first batteries, and Vi is the Vw electricity of the first batteries when charging
Pressure parameter, the Vw voltage parameters of the first batteries when Vo is electric discharge；Vic is the first bidirectional energy-storage inverter to the first battery
Group first overcharge protection control point voltage battery parameter value, Vie be the second of the first bidirectional energy-storage inverter overcharge protection shutdown hold
Row point voltage battery parameter value；Voc is that the first bidirectional energy-storage inverter puts control point voltage parameter excessively to the first of the first batteries
Value, Voe is that the first bidirectional energy-storage inverter shuts down an execution point voltage battery parameter value to the second Cross prevention of the first batteries；
Vt1 be discharged with current power the t1 times electricity when corresponding voltage parameter, the t1 times are to control and complete in discharge process
Time required for microgrid energy balance；Corresponding voltage parameter, t2 when Vt2 is with the electricity of current power charging t2 times
Time in charging process to control and completes the microgrid energy balance required time；
First bidirectional energy-storage inverter the first battery of real-time monitoring is passed through by micro-capacitance sensor monitoring system when micro-capacitance sensor runs
Group operating voltage parameter value, when Vi voltage battery parameter values reach Vic when charge operation, is controlled the second bidirectional energy-storage of increase inverse
Become the charge power of device and reduce photovoltaic combining inverter and photovoltaic power generation array, wind-electricity integration inverter and wind-driven generator
Generating output power；When Vo voltage battery parameter values reach Voc when being run when discharging, the second bidirectional energy-storage inversion of increase is controlled
The discharge power and increase photovoltaic combining inverter and photovoltaic power generation array and wind-electricity integration inverter and wind-driven generator of device
Generating output power and control AC power distribution cabinet/AC distribution panel reduce power supply to user load；The voltage battery parameter value Vi when charge operation
During=Vie, and during electric discharge operation during voltage battery parameter value Vo=Voe, the first bidirectional energy-storage inverter performs protectiveness and shuts down；By
This realizes the first bidirectional energy-storage inverter under uncontrollable voltage source VF patterns in micro-capacitance sensor, by micro-capacitance sensor monitoring system
Monitoring realize charge and discharge it is electrically controllable operation and limit protection multi-functional.
The present invention using be respectively provided with first overcharge protection control point voltage battery parameter value Vic and second overcharge protection perform point
The double of voltage battery parameter value Vie overcharge control and protection voltage parameter, and set the first Cross prevention control point voltage battery parameter value
The double mistake that Voc and the second Cross prevention perform point voltage battery parameter value Voe puts control with protection voltage parameter, micro-capacitance sensor monitoring system
The first batteries is operated in the interval of voltage battery parameter value Vic and Voc by controlling the first bidirectional energy-storage inverter, and control
Energy supply, energy storage and the power with energy, reach microgrid energy and balance within reliable range of operation, it is ensured that micro-grid system
Continuous service.
In sum, by a kind of micro-grid system control method for improving robustness of the invention, can be with easy and effective
Ground overcomes the uncontrolled defect in tank voltage source, enhances the reliability that the first bidirectional energy-storage inverter supports micro-capacitance sensor, improves
The robustness of micro-capacitance sensor.
Brief description of the drawings
Fig. 1 is a kind of micro-grid system framework schematic block diagram for improving robustness.
Fig. 2 is battery charging and discharging required time and voltage parameter relation schematic diagram.
Specific embodiment
As examples of implementation, a kind of micro-grid system control method for improving robustness is described with reference to accompanying drawing, but
It is that technology of the invention is not limited to the content that the present embodiment is provided with scheme.
Accompanying drawing 1 gives a kind of micro-grid system framework schematic block diagram for improving robustness.Shown in figure, the present invention
A kind of micro-grid system control method of the raising robustness for proposing, including：Micro-capacitance sensor monitoring system (1), the first bidirectional energy-storage
Inverter (2), photovoltaic combining inverter (3), wind-electricity integration inverter (4), AC power distribution cabinet/AC distribution panel (5), the first batteries (6),
Photovoltaic power generation array (7), wind-driven generator (8), micro-capacitance sensor power line (9), monitoring order wire (10), the first energy storage boosting transformation
Device (11), photovoltaic step-up transformer (12), wind-powered electricity generation step-up transformer (13), user's step-down transformer (14), user load (15),
Second energy storage step-up transformer (16), the second batteries (17) and the second bidirectional energy-storage inverter (18), it is characterized in that：
The first bidirectional energy-storage inverter (2) is connected by the first batteries (6) and by the first energy storage step-up transformer
(11) micro-capacitance sensor power line (9) is accessed, the electrical path that voltage source electricity energy storage energy supply accesses micro-capacitance sensor is constituted；
The second bidirectional energy-storage inverter (18) is connected by the second batteries (17) and by the second energy storage step-up transformer
(16) micro-capacitance sensor power line (9) is accessed, the electrical path that current source energy storage energy supply accesses micro-capacitance sensor is constituted；
Photovoltaic combining inverter (3) is connected by photovoltaic power generation array (7) and is accessed by photovoltaic step-up transformer (12) micro-
Electric network power line (9), constitutes the electrical path that light generator unit accesses micro-capacitance sensor；
Wind-electricity integration inverter (4) is connected by wind-driven generator (8) and micro- electricity is accessed by wind-powered electricity generation step-up transformer (13)
Net power line (9), constitutes wind-power generation unit and accesses micro-capacitance sensor electrical path；
User load (15) connects AC power distribution cabinet/AC distribution panel (5) and accesses micro-capacitance sensor power line by user's step-down transformer (14)
(9) user power utilization electrical path, is constituted；
Micro-capacitance sensor monitoring system (1) connects the first bidirectional energy-storage inverter (2), photovoltaic respectively by monitoring order wire (10)
Combining inverter (3), wind-electricity integration inverter (4), the second bidirectional energy-storage inverter (18), AC power distribution cabinet/AC distribution panel (5), constitute micro- electricity
Net monitoring communication link；
Its control method is：First batteries (6) connect the first bidirectional energy-storage inverter (2) as energy-storage units with electricity
The mode of potential source VF patterns is run, and sets the Cross prevention control point voltage battery parameter value Voc of the first batteries (6) first and the
A two Cross preventions execution point voltage battery parameter value Voe and first overcharges protection control point voltage battery parameter value Vic and second and overcharges protection
Point voltage battery parameter value Vie is performed, and is met：
Voc≤Vw≤Vic；
Voc-Voe≥Vt1；
Vie-Vic≥Vt2；
Wherein：Vw is the present operating voltage parameter of the first batteries (6), VF batteries (6) when Vi is to charge
Vw voltage parameters, the Vw voltage parameters of the first batteries (6) when Vo is for electric discharge；Vic is that the first bidirectional energy-storage inverter (2) is right
The first of first batteries (6) overcharges protection control point voltage battery parameter value, and Vie is the of the first bidirectional energy-storage inverter (2)
Two overcharge protection shuts down an execution point voltage battery parameter value；Voc is the first bidirectional energy-storage inverter (2) to the first batteries (6)
First puts control point voltage battery parameter value excessively, and Voe is second mistake of the first bidirectional energy-storage inverter (2) to the first batteries (6)
Put protection and shut down an execution point voltage battery parameter value；As the battery charging and discharging required time and voltage parameter relation of accompanying drawing 2 is illustrated
Shown in figure, corresponding voltage parameter when Vt1 is with the electricity of current power electric discharge t1 times, the t1 times are control in discharge process
And the time required for completing microgrid energy balance；Corresponding voltage when Vt2 is with the electricity of current power charging t2 times
Parameter, the t2 times in charging process to control and completes the microgrid energy balance required time；
By micro-capacitance sensor monitoring system (1) by first bidirectional energy-storage inverter (2) real-time monitoring first during micro-capacitance sensor operation
Batteries (6) voltage parameter, when Vi voltage battery parameter values reach Vic when charge operation, is controlled the second two-way storage of increase
The charge power of energy inverter (18) and reduction photovoltaic combining inverter (3) and photovoltaic power generation array (7), wind-electricity integration inversion
The generating output power of device (4) and wind-driven generator (8)；When Vo voltage battery parameter values reach Voc when being run when discharging, it is controlled
Increase the discharge power of the second bidirectional energy-storage inverter (18) and increase photovoltaic combining inverter (3) and photovoltaic power generation array
(7) reduced with the generating output power of wind-driven generator (8) and control AC power distribution cabinet/AC distribution panel (5) with wind-electricity integration inverter (4)
Power supply to user load (15)；When charge operation during voltage battery parameter value Vi=Vie, and voltage battery parameter value during electric discharge operation
During Vo=Voe, the first bidirectional energy-storage inverter (2) performs protectiveness and shuts down；It is achieved under uncontrollable voltage source VF patterns
The first bidirectional energy-storage inverter (2) in micro-capacitance sensor, charge and discharge is realized by the monitoring of micro-capacitance sensor monitoring system (1) electrically controllable
Operation and the multi-functional of limit protection.
The present invention using be respectively provided with first overcharge protection control point voltage battery parameter value Vic and second overcharge protection perform point
The double of voltage battery parameter value Vie overcharge protection voltage parameter, and set the first Cross prevention control point voltage battery parameter value Voc and the
Two Cross preventions perform a double Cross prevention voltage parameters of point voltage battery parameter value Voe, and micro-capacitance sensor monitoring system (1) is by controlling the
One two-way energy storage inverter (2) makes the first batteries (6) be operated in the interval of voltage battery parameter value Vie and Voc, and makes micro-capacitance sensor
System can be before monitoring and execution be overcharged or Cross prevention is shut down, by micro-capacitance sensor monitoring system (1) by monitoring order wire
(10) control respectively the first bidirectional energy-storage inverter (2), photovoltaic combining inverter (3), wind-electricity integration inverter (4), second pair
To energy storage inverter (18), the energy supply of AC power distribution cabinet/AC distribution panel (5), energy storage and with can power, reach microgrid energy balance can
Within the range of operation leaned on, it is ensured that the continuous service of micro-grid system.
Claims (1)
1. it is a kind of improve robustness micro-grid system control method, including：Micro-capacitance sensor monitoring system (1), the first bidirectional energy-storage
Inverter (2), photovoltaic combining inverter (3), wind-electricity integration inverter (4), AC power distribution cabinet/AC distribution panel (5), the first batteries (6),
Photovoltaic power generation array (7), wind-driven generator (8), micro-capacitance sensor power line (9), monitoring order wire (10), the first energy storage boosting transformation
Device (11), photovoltaic step-up transformer (12), wind-powered electricity generation step-up transformer (13), user's step-down transformer (14), user load (15),
Second energy storage step-up transformer (16), the second batteries (17) and the second bidirectional energy-storage inverter (18), it is characterized in that：
The first bidirectional energy-storage inverter (2) is connected by the first batteries (6) and is connect by the first energy storage step-up transformer (11)
Electric network power line (9), constitutes the electrical path that voltage source electricity energy storage energy supply accesses micro-capacitance sensor in a subtle way；
The second bidirectional energy-storage inverter (18) is connected by the second batteries (17) and by the second energy storage step-up transformer (16)
Micro-capacitance sensor power line (9) is accessed, the electrical path that current source energy storage energy supply accesses micro-capacitance sensor is constituted；
Photovoltaic combining inverter (3) is connected by photovoltaic power generation array (7) and micro-capacitance sensor is accessed by photovoltaic step-up transformer (12)
Power line (9), constitutes the electrical path that light generator unit accesses micro-capacitance sensor；
Wind-electricity integration inverter (4) is connected by wind-driven generator (8) and micro-capacitance sensor electricity is accessed by wind-powered electricity generation step-up transformer (13)
The line of force (9), constitutes wind-power generation unit and accesses micro-capacitance sensor electrical path；
User load (15) connects AC power distribution cabinet/AC distribution panel (5) and accesses micro-capacitance sensor power line (9) by user's step-down transformer (14),
Constitute user power utilization electrical path；
Micro-capacitance sensor monitoring system (1) connects the first bidirectional energy-storage inverter (2), grid-connected respectively by monitoring order wire (10)
Inverter (3), wind-electricity integration inverter (4), the second bidirectional energy-storage inverter (18), AC power distribution cabinet/AC distribution panel (5), constitute micro-capacitance sensor prison
Control communication link；
Its control method is：First batteries (6) connect the first bidirectional energy-storage inverter (2) as energy-storage units with voltage source
The mode of VF patterns is run, and sets the Cross prevention control point voltage battery parameter value Voc of the first batteries (6) first and the second mistake
Put protection perform point a voltage battery parameter value Voe and first overcharge protection control point voltage battery parameter value Vic and second overcharge protection perform
Point voltage battery parameter value Vie, and meet：
Voc≤Vw≤Vic；
Voc-Voe≥Vt1；
Vie-Vic≥Vt2；
Wherein：Vw is the present operating voltage parameter of the first batteries (6), the Vw of the first batteries (6) when Vi is to charge
Voltage parameter, the Vw voltage parameters of the first batteries (6) when Vo is for electric discharge；Vic is the first bidirectional energy-storage inverter (2) to the
The first of one batteries (6) overcharges protection control point voltage battery parameter value, and Vie is the second of the first bidirectional energy-storage inverter (2)
Overcharge protection and shut down an execution point voltage battery parameter value；Voc is the first bidirectional energy-storage inverter (2) to the of the first batteries (6)
One puts control point voltage battery parameter value excessively, and Voe is that the first bidirectional energy-storage inverter (2) is put excessively to the second of the first batteries (6)
Protection is shut down and performs point voltage battery parameter value；Corresponding voltage parameter when Vt1 is with the electricity of current power electric discharge t1 times, during t1
Between time to control in discharge process and required for completing microgrid energy balance；Vt2 is with the current power charging t2 times
Electricity when corresponding voltage parameter, the t2 times be charging process in control and complete microgrid energy balance required for when
Between；
By micro-capacitance sensor monitoring system (1) by first bidirectional energy-storage inverter (2) first electric power storage of real-time monitoring during micro-capacitance sensor operation
Pond group (6) voltage parameter, when Vi voltage battery parameter values reach Vic when charge operation, is controlled the second bidirectional energy-storage of increase inverse
Become the charge power of device (18) and reduce photovoltaic combining inverter (3) and photovoltaic power generation array (7), wind-electricity integration inverter
(4) with the generating output power of wind-driven generator (8)；When Vo voltage battery parameter values reach Voc when being run when discharging, increasing is controlled
Plus second bidirectional energy-storage inverter (18) discharge power and increase photovoltaic combining inverter (3) with photovoltaic power generation array (7)
With the generating output power of wind-electricity integration inverter (4) and wind-driven generator (8) and control AC power distribution cabinet/AC distribution panel (5) reduce to
The power supply at family load (15)；When charge operation during voltage battery parameter value Vi=Vie, and voltage battery parameter value Vo=during electric discharge operation
During Voe, the first bidirectional energy-storage inverter (2) performs protectiveness and shuts down；It is achieved under uncontrollable voltage source VF patterns
One two-way energy storage inverter (2) realizes the electrically controllable operation of charge and discharge in micro-capacitance sensor by the monitoring of micro-capacitance sensor monitoring system (1)
With the multi-functional of limit protection.
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| CN109103920B (en) * | 2017-06-20 | 2024-04-30 | 周锡卫 | Control method of new energy micro-grid based on PCC grid-connected point limiting power |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102916442A (en) * | 2012-10-17 | 2013-02-06 | 北京科诺伟业科技有限公司 | Building photovoltaic grid-connected system |
| CN103238259A (en) * | 2010-10-05 | 2013-08-07 | 艾利肯获取有限公司 | High voltage energy harvesting and conversion renewable energy utility size electric power systems and visual monitoring and control systems for said systems |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103238259A (en) * | 2010-10-05 | 2013-08-07 | 艾利肯获取有限公司 | High voltage energy harvesting and conversion renewable energy utility size electric power systems and visual monitoring and control systems for said systems |
| CN102916442A (en) * | 2012-10-17 | 2013-02-06 | 北京科诺伟业科技有限公司 | Building photovoltaic grid-connected system |
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