CN206135429U - Device with millet and electric energy quality comprehensive control are filled out in peak clipping - Google Patents
Device with millet and electric energy quality comprehensive control are filled out in peak clipping Download PDFInfo
- Publication number
- CN206135429U CN206135429U CN201620603123.9U CN201620603123U CN206135429U CN 206135429 U CN206135429 U CN 206135429U CN 201620603123 U CN201620603123 U CN 201620603123U CN 206135429 U CN206135429 U CN 206135429U
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- China
- Prior art keywords
- phase inverter
- inverter module
- converter
- phase
- transformer
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
-
- 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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/40—Arrangements for reducing harmonics
-
- 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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/50—Arrangements for eliminating or reducing asymmetry in polyphase networks
-
- 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
Abstract
The utility model provides a device with millet and electric energy quality comprehensive control are filled out in peak clipping which does it include three -phase inverter module INV1, three -phase inverter module INV2, direct current support electric capacity, two -way thyristor module, controller I, controller II, transformer T2, dc bus, direct current characterized in that direct -current converter and battery, its superiority: response speed is fast, the standby is efficient, job stabilization, simple structure moreover, and product cost is low, is convenient for maintain, easily operation, the price / performance ratio is higher, uninterrupted power source function, harmonic compensation function, reactive compensation function and unbalanced three phase compensation function have, save the power consumption cost, improve enterprise economic benefit.
Description
Technical field
This utility model belongs to electrical equipment technical field, especially a kind of that there is peak load shifting to control with comprehensive power quality
The device of reason.
Background technology
Power plant is usually round-the-clock and persistently generates electricity, if the electricity for being sent cannot be dissolved in time, for the energy for generating electricity
Utilization rate then can be reduced, especially to generation of electricity by new energy.One power plant generating capacity is typically relatively-stationary, but electricity consumption is high
Peak so results in electric not enough phenomenon on daytime generally on daytime, and then become low power consumption, cause power generation energy resource to utilize in the evening
Rate is reduced, and a part of peak load is moved to into the low ebb phase by Peak-valley TOU power price means for the problem power system, to reach
To the purpose of energy saving.
Peak-valley TOU power price refers to the load variations situation according to electrical network, will be divided within daily 24 hours peak, flat section, low
Multiple periods such as paddy, different electricity price levels are formulated respectively to day part, to encourage the Electricity customers reasonable arrangement electricity consumption time, cut
Peak load, improves the utilization ratio of electric power resource.But many enterprises are relatively fixed the production time, therefore by energy storage mode reality
Existing peak load shifting is adopted by more and more enterprises.Especially as the development of accumulator and Power Electronic Technique, based on electric power storage
Pond Large Copacity peak load shifting pattern has been used widely.
For higher high-end manufacturing industry is required to power supply reliability, corresponding solution is mainly important sensitive load
Configuration uninterrupted power source (UPS --- Uninterruptible Power System), on line type UPS be lost online it is larger and into
This is higher, and off-line UPS response speed cannot meet more slowly the requirement of sensitive load, while uninterrupted power source is also based on electric power storage
Pond energy storage realization, so as to cause peak load shifting energy storage device to be reused with uninterrupted power source energy storage device, considerably increases life
Investment is produced, business electrical efficiency is reduced.
Simultaneously as harmonic pollution, power factor are low, three-phase imbalance is stepped on power quality problem and is increasingly highlighted, corresponding solution
The certainly main active filter of scheme (APF --- Active power filter), static reactive generator (SVG ---
Static Var Generator) etc., but because these power quality controlling functions of the equipments are single, equally considerably increase enterprise
Investment of production.
Utility model content
The purpose of this utility model is to propose a kind of device with peak load shifting Yu power quality harnessed synthetically, it
The deficiencies in the prior art can be overcome, be a kind of simple structure, the synthesis of peak load shifting and the quality of power supply can be simultaneously met again
Administer, easy to use, the device of low cost.
The technical solution of the utility model：A kind of device with peak load shifting Yu power quality harnessed synthetically, including electricity
Net, electric network source AC, electrical network side transformer T1, load M1 and load M2, it is characterised in that it includes three-phase inverter module
INV1, three-phase inverter module INV2, DC support electric capacity, bidirectional thyristor module, controller I, controller II, transformator
T2, dc bus, DC-DC converter and accumulator；Wherein, three-phase inverter module INV1 and three-phase inverter mould
Connect in the back-to-back mode of DC side between block INV2；The DC support electric capacity is connected in parallel on the DC side of two inverter modules
Between；The input of described bidirectional thyristor module is connected with the low-pressure side of electrical network side transformer T1, its outfan and load
M2 is connected；The input collection voltages transformer summation current transformer collection electrical network of the controller I and load side voltage x current
Signal, its outfan respectively with three-phase inverter module INV1, three-phase inverter module INV2 and two-phase thyristor module
Control signal connects；The dc bus respectively with three-phase inverter module INV1 and the direct current of three-phase inverter module INV2
Side connects, and the dc bus also connects the net side of DC-DC converter simultaneously；The net side of the DC-DC converter
It is connected with dc bus, its components and parts side is connected with accumulator；Electricity on the input collection dc bus of the controller II
Pressure signal and battery tension signal, its outfan is connected with the input control end of DC-DC converter；The transformator T2
High-pressure side be connected with electric network source AC, its low-pressure side is connected with the AC of three-phase inverter module INV2.
The input of the controller I gathers the voltage signal of grid side by voltage transformer pt 1, while passing through voltage
The voltage and current signal of transformer PT2 summation current transformers CT1 collection load M2 sides, and gathered by Current Transmit 2
The current signal of transformator T2 low-pressure sides.
The DC-DC converter is no less than one；The quantity of the accumulator and the quantity of DC-DC converter
It is identical, power to each DC-DC converter respectively.
The bidirectional thyristor module is made up of three bidirectional thyristors；The accumulator battery is by single battery connection in series-parallel
Composition.
The inverter DC support electric capacity is electrochemical capacitor or thin-film capacitor.
Three-phase inverter module INV1 and three-phase inverter module INV2 are that three-phase bridge inverter structure, three level are inverse
The structure that a kind of and LCL filter of change device structure or three single-phase inverters combines.
The transformator T2 is three-phase transformer, and low-pressure side is 380V or 400V, and high-pressure side is 6kV or 10kV.
The DC-DC converter module is voltage raising and reducing circuit or the DC-dc conversion based on high frequency transformer
Device.
Method of work of the present utility model includes the normal and abnormal two kinds of mode of operations of system power supply AC voltage：
(1) system power supply AC voltage normal mode of operation：
1. when system power supply AC is normal, controller I output K1 and K2 control signals make three-phase inverter module INV1 and
Three-phase inverter module INV2 is operated under current source mode, and controller I gathers three contraries by current sensor CT1 and CT2
Become the output current of device module I NV1 and three-phase inverter module INV2, realize the current follow-up control to inverter；Three contraries
Change device module I NV1 startup function is active power filtering, reactive-load compensation, three-phase imbalance compensation function；
2. controller I output-scrs control signal triggers bidirectional thyristor module so as to turn on；Load M1 is by system power supply
AC is directly powered by transformator T1, and for load M2, system power supply AC is by transformator T1 and bidirectional thyristor module for power supply；
If 3. current electricity prices are at a low ebb, three-phase inverter module INV2 is operated under controlled rectification pattern, is accumulator
Charging circuit DC-DC converter provide energy, controller II by collection battery tension Vb1 ... Vbn and control it is defeated
Kn controls DC-DC converter for accumulator charging to go out K3 ...；
If 4. current electricity prices are in peak value, three-phase inverter module INV2 is operated under inverter mode, by accumulator
Accumulators store energy is released and provides energy for load M1 and M2 by discharge circuit DC-DC converter, to reduce system electricity
Source AC power consumptions, controller II controls DC-DC converter and is by collection battery tension Vdc and controlled output K3 ... Kn
Battery discharging；
(2) system power supply AC electric voltage exception mode of operation：
1. when system power supply AC occurs voltage failure, controller I judges voltage event by voltage sensor PT1 detections
Barrier, controller I stops triggering bidirectional thyristor module by output-scr control signal, while exporting K1 control signals makes three-phase
Inverter module INV1 stops immediately current source mode of operation, and is realized by back-pressure pulse method or load current transfer method
Effective shut-off of bidirectional thyristor, three-phase inverter module INV1 working condition is switched to voltage source mode by current source mode；
2. controller I realizes the output voltage closed loop control of three-phase inverter module INV1 with true by voltage sensor PT2
Protect load M2 and keep normal work；Accumulator battery is by DC-DC converter and three-phase inverter module INV1 DC side
The exchange output of three-phase inverter module INV1 provides energy, and three-phase inverter module INV1 is as voltage source maintaining load M2's
Normal work；Three-phase inverter module INV2 quits work；
3. after system power supply AC recovers normal, three-phase inverter module INV1 then exits voltage source mode of operation and again
Starting current source mode of operation, the bidirectional thyristor normal work to maintain load switched on, three-phase inverter module INV2 is opened
Start building to make.
Superiority of the present utility model：1st, having used can rapidly switch off IGCT technology, not only with the response speed being exceedingly fast
Degree, standby efficiency high, working stability, and simple structure, have effectively saved product cost, are easy to safeguard, it is easy to operate, property
Valency is higher；2nd, active power filtering, reactive-load compensation, three-phase imbalance compensation function can be realized；3rd, by using back-to-back three-phase
Inverter, while bidirectional thyristor module will be sealed between electric power system and load, not only can be realized by batteries to store energy
Based on the peak load shifting function of time-of-use tariffs, and uninterrupted power source function, harmonic compensation function, reactive-load compensation work(can be realized
Can be with three-phase imbalance compensation function；4th, peak load cutting function and uninterrupted power source function are provided simultaneously with, are not so only
Enterprise saves electric cost, while improving Business Economic Benefit.
Description of the drawings
Fig. 1 is a kind of overall structure with peak load shifting Yu the device of power quality harnessed synthetically involved by this utility model
Block diagram.
Fig. 2 is two-way brilliant lock in a kind of device with peak load shifting and power quality harnessed synthetically involved by this utility model
The structural representation of pipe.
Fig. 3 is accumulator battery in a kind of device with peak load shifting and power quality harnessed synthetically involved by this utility model
Group mould mode structural representation.
Specific embodiment
Embodiment：A kind of device (see Fig. 1) with peak load shifting Yu power quality harnessed synthetically, including electrical network, electrical network
Power supply AC, electrical network side transformer T1, load M1 and load M2, it is characterised in that it includes three-phase inverter module INV1, three-phase
Inverter module INV2, DC support electric capacity, bidirectional thyristor module, controller I, controller II, transformator T2, direct current are female
Line, DC-DC converter and accumulator；Wherein, three-phase inverter module INV1 and three-phase inverter module INV2 it
Between connect in the back-to-back mode of DC side；The DC support electric capacity be connected in parallel on two three-phase inverter modules DC side it
Between；The input of described bidirectional thyristor module is connected with the low-pressure side of electrical network side transformer T1, its outfan and load M2
It is connected；The input collection voltages transformer summation current transformer collection electrical network and load side voltage x current letter of the controller I
Number, its outfan respectively with three-phase inverter module INV1, the control of three-phase inverter module INV2 and two-phase thyristor module
Input connection processed；The dc bus respectively with three-phase inverter module INV1 and the direct current of three-phase inverter module INV2
Side connects, and the dc bus also connects the net side of DC-DC converter simultaneously；The net side of the DC-DC converter
It is connected with dc bus, its components and parts side is connected with accumulator；Electricity on the input collection dc bus of the controller II
Pressure signal and battery tension signal, its outfan is connected with the input control end of DC-DC converter；The transformator T2
High-pressure side be connected with electric network source AC, its low-pressure side is connected with the AC of three-phase inverter module INV2.
The input of the controller I gathers the voltage signal of grid side by voltage transformer pt 1, while passing through voltage
The voltage and current signal of transformer PT2 summation current transformers CT1 collection load M2 sides, and gathered by Current Transmit 2
The current signal (see Fig. 1) of transformator T2 low-pressure sides.
The DC-DC converter is no less than one；The quantity of the accumulator and the quantity of DC-DC converter
It is identical, power (see Fig. 1) to each DC-DC converter respectively.
The bidirectional thyristor module is made up of (see Fig. 2) three bidirectional thyristors；The accumulator battery is by accumulator list
Body connection in series-parallel is constituted (see Fig. 3).
The inverter DC support electric capacity is electrochemical capacitor or thin-film capacitor.
Three-phase inverter module INV1 and three-phase inverter module INV2 are that three-phase bridge inverter structure, three level are inverse
The structure that a kind of and LCL filter of change device structure or three single-phase inverters combines.
The transformator T2 is three-phase transformer, and low-pressure side is 380V or 400V, and high-pressure side is 6kV or 10kV.
The DC-DC converter module is voltage raising and reducing circuit or the DC-dc conversion based on high frequency transformer
Device.
Claims (8)
1. a kind of device with peak load shifting Yu power quality harnessed synthetically, including electrical network, electric network source AC, grid side transformation
Device T1, load M1 and load M2, it is characterised in that it includes three-phase inverter module INV1, three-phase inverter module INV2, straight
Stream Support Capacitor, bidirectional thyristor module, controller I, controller II, transformator T2, dc bus, DC-DC converter
And accumulator；Wherein, it is square back-to-back in DC side between three-phase inverter module INV1 and three-phase inverter module INV2
Formula connects；The DC support electric capacity is connected in parallel between the DC side of two inverter modules；Described bidirectional thyristor module
Input be connected with the low-pressure side of electrical network side transformer T1, its outfan is connected with load M2；The input of the controller I
Collection voltages transformer summation current transformer gathers electrical network and load side voltage and current signal, its outfan respectively with three-phase inversion
The control signal connection of device module I NV1, three-phase inverter module INV2 and two-phase thyristor module；The dc bus
It is connected with the DC side of three-phase inverter module INV1 and three-phase inverter module INV2 respectively, the dc bus also connects simultaneously
Connect the net side of DC-DC converter；The net side of the DC-DC converter is connected with dc bus, its components and parts side with
Accumulator connects；Voltage signal and battery tension signal on the input collection dc bus of the controller II, its is defeated
Go out end to be connected with the input control end of DC-DC converter；The high-pressure side of the transformator T2 is connected with electric network source AC, its
Low-pressure side is connected with the AC of three-phase inverter module INV2.
2. a kind of device with peak load shifting Yu power quality harnessed synthetically according to claim 1, it is characterised in that institute
The input for stating controller I gathers the voltage signal of grid side by voltage transformer pt 1, while passing through voltage transformer pt 2
The voltage and current signal of summation current transformer CT1 collection load M2 sides, and it is low by the collection transformator T2 of Current Transmit 2
The current signal of pressure side.
3. a kind of device with peak load shifting Yu power quality harnessed synthetically according to claim 1, it is characterised in that institute
DC-DC converter is stated no less than one；The quantity of the accumulator is identical with the quantity of DC-DC converter, respectively
Power to each DC-DC converter.
4. a kind of device with peak load shifting Yu power quality harnessed synthetically according to claim 1, it is characterised in that institute
State bidirectional thyristor module to be made up of three bidirectional thyristors；The accumulator battery is made up of single battery connection in series-parallel.
5. a kind of device with peak load shifting Yu power quality harnessed synthetically according to claim 1, it is characterised in that institute
It is electrochemical capacitor or thin-film capacitor to state DC support electric capacity.
6. a kind of device with peak load shifting Yu power quality harnessed synthetically according to claim 1, it is characterised in that institute
State three-phase inverter module INV1 and three-phase inverter module INV2 be three-phase bridge inverter structure, three-level inverter structure or
The structure that a kind of and LCL filter of three single-phase inverters combines.
7. a kind of device with peak load shifting Yu power quality harnessed synthetically according to claim 1, it is characterised in that institute
It is three-phase transformer to state transformator T2, and low-pressure side is 380V or 400V, and high-pressure side is 6kV or 10kV.
8. a kind of device with peak load shifting Yu power quality harnessed synthetically according to claim 1, it is characterised in that institute
It is voltage raising and reducing circuit or the DC-DC converter based on high frequency transformer to state DC-DC converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620603123.9U CN206135429U (en) | 2016-06-16 | 2016-06-16 | Device with millet and electric energy quality comprehensive control are filled out in peak clipping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620603123.9U CN206135429U (en) | 2016-06-16 | 2016-06-16 | Device with millet and electric energy quality comprehensive control are filled out in peak clipping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206135429U true CN206135429U (en) | 2017-04-26 |
Family
ID=58560716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620603123.9U Expired - Fee Related CN206135429U (en) | 2016-06-16 | 2016-06-16 | Device with millet and electric energy quality comprehensive control are filled out in peak clipping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206135429U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105896583A (en) * | 2016-06-16 | 2016-08-24 | 任磊 | Peak load shifting and power quality comprehensive treatment system and working method thereof |
| CN106253317A (en) * | 2016-09-13 | 2016-12-21 | 天津理工大学 | A kind of peak load shifting and power quality harnessed synthetically system and method for work |
| CN111668850A (en) * | 2020-06-28 | 2020-09-15 | 上海大学 | Line electric energy compensation system based on energy storage and alternating current voltage regulation control |
-
2016
- 2016-06-16 CN CN201620603123.9U patent/CN206135429U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105896583A (en) * | 2016-06-16 | 2016-08-24 | 任磊 | Peak load shifting and power quality comprehensive treatment system and working method thereof |
| CN105896583B (en) * | 2016-06-16 | 2019-04-23 | 任磊 | A kind of peak load shifting and power quality harnessed synthetically system and its working method |
| CN106253317A (en) * | 2016-09-13 | 2016-12-21 | 天津理工大学 | A kind of peak load shifting and power quality harnessed synthetically system and method for work |
| CN111668850A (en) * | 2020-06-28 | 2020-09-15 | 上海大学 | Line electric energy compensation system based on energy storage and alternating current voltage regulation control |
| CN111668850B (en) * | 2020-06-28 | 2021-03-26 | 上海大学 | Line electric energy compensation system based on energy storage and alternating current voltage regulation control |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180815 Address after: 518000 room 1203, East seat, Yihai Plaza, Chuang Chuang Road, Nanshan District, Shenzhen, Guangdong Patentee after: Shenzhen Sino Jia Zhi Lian Energy Technology Co., Ltd. Address before: 300384 Automation School of Tianjin University of Technology, No. 391 Penshui West Road, Xiqing, Tianjin Patentee before: Ren Lei |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170426 Termination date: 20200616 |