CN107086585A - A kind of novel electric power system reactive power compensation system - Google Patents
A kind of novel electric power system reactive power compensation system Download PDFInfo
- Publication number
- CN107086585A CN107086585A CN201710506625.9A CN201710506625A CN107086585A CN 107086585 A CN107086585 A CN 107086585A CN 201710506625 A CN201710506625 A CN 201710506625A CN 107086585 A CN107086585 A CN 107086585A
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- Prior art keywords
- phase
- compensation
- reactive
- novel electric
- electric power
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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
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
- H02J3/1821—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators
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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
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
-
- 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
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
-
- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/22—Flexible AC transmission systems [FACTS] or power factor or reactive power compensating or correcting units
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Human Computer Interaction (AREA)
- Control Of Electrical Variables (AREA)
Abstract
The invention discloses a kind of novel electric power system reactive power compensation system, a kind of novel electric power system reactive power compensation system, including sample detecting circuit, intelligent terminal, compensating controller, switching control circuit and reactive compensation unit, the sample detecting circuit input end connects three phase network, the sample detecting circuit output end connects intelligent terminal, the intelligent terminal connects compensating controller, the compensating controller connection switching control circuit, the switching control circuit connection reactive compensation unit.The present invention is detected by current sample in sample detecting circuit power network, and switching control circuit is controlled according to testing result, according to certain regular input/excision capacitor, reactive-load compensation is carried out to three phase network, realize the automatic real-Time Compensation of reactive power, supply voltage quality is improved, the conventional single-phase sample detecting of electric current is solved and causes other two-phase undercompensations or overcompensation, cause the fluctuation of rear end electrical equipment terminal voltage.
Description
Technical field
The present invention relates to technical field of electric power, particularly a kind of novel electric power system reactive power compensation system.
Background technology
The meaning of the management of power use is exactly that can provide the stable quality of power supply to Electricity customers end, and voltage is the quality of power supply
One of important indicator, quality of voltage to the stabilization of power grids and power equipment safety operation, line loss, industrial or agricultural safety in production,
Product quality, electricity consumption unit consumption and people's lives electricity consumption all have a direct impact.Var is one of influence quality of voltage important
Factor, quality of voltage with it is idle be it is inseparable, voltage problem is substantially exactly an idle problem.Resolve reactive-load compensation
Problem, tool is of great significance.According to the equilibrium principle of reactive power, according to the principle of reactive-load compensation, introduce idle
Influence of the compensation technique to low voltage electric network power factor.By reactive-load compensation and voltage-regulation, reactive power is set to have obtained automatically
Real-Time Compensation, realizes from processed offline to processing in real time, is balanced from in-situ balancing to the whole network, from independent control to concentration control
System, it is to avoid direct surveillance, the various drawbacks of manual switching.Var is to influence a key factor of quality of voltage, electricity
Press quality with it is idle be inseparable, it may be said that voltage problem is substantially exactly idle problem, resolves reactive-load compensation and asks
Topic, tool is of great significance.
At present, main flow idle compensating control is divided Current Voltage phase difference by the way of electric current, voltage sample
Analysis, through logical operation and setting switching strategy, packet input capacitor, current sample is mainly derived from a certain phase, and voltage sample is adopted
Collect two-phase, the current delayed idle single-phase equipment of perception that introduces is more and more, and is generally a point A/B/C three-phases distribution, and electric current is single-phase
Sampled data is only capable of reflecting the Current Voltage phase relation of a certain phase, and three-phase capacitor is put into accordingly, it will other two-phase is produced
Raw undercompensation or overcompensation, undercompensation or overcompensation can all cause rear end electrical equipment terminal voltage to fluctuate.
The content of the invention
The present invention seeks to overcome not enough compensated there is provided a kind of novel electric power system reactive power of the prior art to be
System, can be detected by current sample in sample detecting circuit power network, and control switching control circuit according to testing result, according to one
Fixed regular input/excision capacitor, carries out reactive-load compensation to three phase network, realizes the automatic real-Time Compensation of reactive power, improves
Supply voltage quality, solves the conventional single-phase sample detecting of electric current and causes other two-phase undercompensations or overcompensation, cause rear end electricity consumption
The fluctuation of equipment terminal voltage.
In order to achieve the above object, the present invention is achieved through the following technical solutions：
A kind of novel electric power system reactive power compensation system, including sample detecting circuit, intelligent terminal, compensating controller, throwing
Control circuit and reactive compensation unit are cut, the sample detecting circuit input end connects three phase network, the sample detecting circuit
Output end connects intelligent terminal, and the intelligent terminal connects compensating controller, and the compensating controller connection switching controls circuit,
The switching control circuit connection reactive compensation unit.
It is preferred that, the reactive compensation unit includes compensation capacitor and fling-cut switch.
It is preferred that, the reactive compensation unit is divided into A phase compensation capacitors, B phase compensation capacitors and C phase compensation capacitors
And corresponding A phases fling-cut switch, B phases fling-cut switch and C phase fling-cut switches.
It is preferred that, the intelligent terminal includes communication module and data processing module, the communication module and the data
Processing module is connected.
It is preferred that, the communication module is connected with an external server, and the external server includes display system.
It is preferred that, the sample detecting circuit includes the current transformer for being used to gather electric current, the output of current transformer
Data processing module in end connection intelligent terminal, intelligent terminal calculates realtime power factor, with setting factor comparison operation,
Then compensating for reactive compensation unit is controlled.
It is preferred that, the current transformer includes A phase current mutual inductors, B phase current mutual inductors and C phase current mutual inductors.
The compensating controller connects power factor display unit.
The present invention compared with prior art, with following beneficial effect：
（1）The sample detecting circuit of the present invention can be right by A phase current mutual inductors, B phase current mutual inductors and C phase current mutual inductors
Each phase current of supply network carries out sample detecting, and according to the power factor or reactive power of detection, according to certain rule
Then put into/capacitor is cut off, reactive-load compensation is carried out to three phase network, the automatic real-Time Compensation of reactive power is realized, power supply electricity is improved
Quality is pressed, the conventional single-phase sample detecting of electric current is solved and causes other two-phase undercompensations or overcompensation, cause rear end electrical equipment end
The fluctuation of voltage；
（2）The present invention by introducing intelligent terminal, the power network for receiving to gather in acquisition testing circuit by communication module
Electric parameter, and the electric parameter is sent to data processing module, the data processing module controls to throw according to electric parameter situation
Cut control circuit and carry out reactive-load compensation, meanwhile, communication module connection external server, and electric parameter is sent to external service
Device, realizes the real-time monitoring long-range to power network.
Brief description of the drawings
The following drawings only does schematic illustration and explanation to the present invention, not delimit the scope of the invention.
Fig. 1 is the circuit connecting relation schematic diagram of No-Work Power Compensation Capacity in Electricity System system of the present invention；
In figure：1st, sample detecting circuit, 2, intelligent terminal, 3, compensating controller, 4, switching control circuit, 5, reactive-load compensation list
Member, 6, A phase compensation capacitors, 7, B phase compensation capacitors, 8, C phase compensation capacitors, 9, A phase fling-cut switches, 10, B is congenial cuts
Close, 11, C phase fling-cut switches, 12, communication module, 13, data processing module, 14, external server, 15, A phase current mutual inductors,
16th, B phase current mutual inductors, 17, C phase current mutual inductors, 18, power factor display unit.
Embodiment
For the ease of understanding the present invention, the present invention is described more fully below with reference to relevant drawings.In accompanying drawing
Give some embodiments of the present invention.But, the present invention can be realized in many different forms, however it is not limited to unless another
It is defined, all of technologies and scientific terms used here by the article is generally managed with belonging to the those skilled in the art of the present invention
The implication of solution is identical.
As shown in figure 1, a kind of novel electric power system reactive power compensation system, including sample detecting circuit 1, intelligent terminal
2nd, compensating controller 3, switching control circuit 4 and reactive compensation unit 5, wherein, the input of sample detecting circuit 1 connection three-phase electricity
Net, the output end of sample detecting circuit 1 connection comparison controller 2, the connection compensating controller 3 of comparison controller 2, compensating controller 3
Connect switching control circuit 4, the switching control connection reactive compensation unit 5 of circuit 4.
Wherein, sample detecting circuit 1 includes the current transformer for being used to gather electric current, the output end connection of current transformer
Comparison controller 2, and current transformer includes A phase current mutual inductors 15, B phase current mutual inductors 16 and C phase current mutual inductors 17,
First, A phase current mutual inductors 15, B phase current mutual inductors 16 and C phase current mutual inductors 17 are detected to three phase network current sample.
Wherein, intelligent terminal 2 includes communication module 12 and data processing module 13, the communication module 12 with it is described
Data processing module 13 is connected, meanwhile, communication module 12 is connected with an external server 14, so, and communication module 12 receives to adopt
The electric parameter of the power network gathered in collection detection circuit, and the electric parameter is sent to data processing module 13, at data
Reason module 13 calculates realtime power factor, and with setting power factor comparison operation, then compensating controller 3 is according to computing knot
Really, driving switching control circuit 4, switching control circuit 4 can control reactive compensation unit 5 according to according to default switching strategy
Reactive-load compensation is carried out to three phase network, meanwhile, the connection external server 14 of communication module 12, and external server includes display system
System, the change of power network electric parameter can be thus monitored in real time, the real-time monitoring long-range to power network is realized.
Wherein, reactive compensation unit 5 includes compensation capacitor and fling-cut switch, and compensation capacitor is divided into A phase compensating electric capacities
Device 6, B phase compensation capacitors 7 and C phase compensation capacitors 8, and fling-cut switch it is corresponding be divided into A phases fling-cut switch 9, B phase switchings
10 and C phases fling-cut switch 11 is switched, passes through the A phase compensation capacitors 6, B phase compensation capacitors 7 and C phase compensation capacitors 8 of setting
It can be achieved to carry out targeted reactive-load compensation to three phase network.
Wherein, compensating controller connection power factor display unit 15, can Real Time Observation to reactive power compensation shape
Condition, and effective monitoring is carried out to power network.
Operation principle：Three-phase electricity parameter signals are detected by sample detecting circuit 1, and corresponding electric parameter signal is introduced into intelligence
Energy terminal 2, communication module 12 receives the electric parameter of the power network gathered in acquisition testing circuit 1, and the electric parameter is sent out
Data processing module 13 is delivered to, data processing module 13 calculates realtime power factor, with setting power factor comparison operation, so
Post-compensation controller 3 calculates realtime power factor according to operation result, and with setting power factor comparison operation, compensation control
Device 3 drives switching to control circuit 4 according to operation result, if in thresholding, not acting, if beyond thresholding, switching control
Circuit 4 takes switching measure, and control reactive compensation unit 5 carries out reactive-load compensation to three phase network, keeps power factor in setting
Limit band in.
The sample detecting circuit of the present invention can by A phase current mutual inductors, B phase current mutual inductors and C phase current mutual inductors
Sample detecting is carried out to each phase current of supply network, and according to the power factor or reactive power of detection, according to certain
Regular input/excision capacitor, reactive-load compensation is carried out to three phase network, realizes the automatic real-Time Compensation of reactive power, improves power supply
Quality of voltage, solves the conventional single-phase sample detecting of electric current and causes other two-phase undercompensations or overcompensation, cause rear end electrical equipment
The fluctuation of terminal voltage；Meanwhile, by introducing intelligent terminal, realize the real-time monitoring long-range to power network.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, although with reference to foregoing reality
Apply example the present invention is described in detail, for those skilled in the art, it still can be to foregoing each implementation
Technical scheme described in example is modified, or carries out equivalent substitution to which part technical characteristic.All essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (8)
1. a kind of novel electric power system reactive power compensation system, it is characterised in that：Including sample detecting circuit（1）, intelligence eventually
End（2）, compensating controller（3）, switching control circuit（4）And reactive compensation unit（5）, the sample detecting circuit（1）Input
End connection three phase network, the sample detecting circuit（1）Output end connects intelligent terminal（2）, the intelligent terminal（2）Connection is mended
Repay controller（3）, the compensating controller（3）Connect switching control circuit（4）, the switching control circuit（4）Connection is idle
Compensating unit（5）.
2. novel electric power system reactive power compensation system according to claim 1, it is characterised in that：The reactive-load compensation
Unit（5）Including compensation capacitor and fling-cut switch.
3. novel electric power system reactive power compensation system according to claim 2, it is characterised in that：The reactive-load compensation
Unit is divided into A phase compensation capacitors（6）, B phase compensation capacitors（7）With C phase compensation capacitors（8）And corresponding A phase switchings
Switch（9）, B phase fling-cut switches（10）With C phase fling-cut switches（11）.
4. novel electric power System Reactive Power compensation system according to claim 1, it is characterised in that：The intelligent terminal（2）
Including communication module（12）And data processing module（13）, the communication module（12）With the data processing module（13）Even
Connect.
5. novel electric power System Reactive Power compensation system according to claim 4, it is characterised in that：The communication module（12）
With an external server（14）Connection, the external server（14）Including display system.
6. novel electric power system reactive power compensation system according to claim 1, it is characterised in that：The sample detecting
Circuit（1）Including the current transformer for gathering electric current, the output end connection intelligent terminal of current transformer（2）, intelligence is eventually
End（2）In data processing module（13）Realtime power factor is calculated, with setting factor comparison operation, idle benefit is then controlled
Repay unit（5）Compensate.
7. novel electric power system reactive power compensation system according to claim 4, it is characterised in that：The Current Mutual Inductance
Device includes A phase current mutual inductors（15）, B phase current mutual inductors（16）With C phase current mutual inductors（17）.
8. novel electric power system reactive power compensation system according to claim 1, it is characterised in that：The compensation control
Device（3）Connect power factor display unit（18）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710506625.9A CN107086585A (en) | 2017-06-28 | 2017-06-28 | A kind of novel electric power system reactive power compensation system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710506625.9A CN107086585A (en) | 2017-06-28 | 2017-06-28 | A kind of novel electric power system reactive power compensation system |
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| Publication Number | Publication Date |
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| CN107086585A true CN107086585A (en) | 2017-08-22 |
Family
ID=59605839
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710506625.9A Withdrawn CN107086585A (en) | 2017-06-28 | 2017-06-28 | A kind of novel electric power system reactive power compensation system |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107546758A (en) * | 2017-09-30 | 2018-01-05 | 北京英博新能源有限公司 | A kind of three-phase current adjusting means and method |
| CN110212550A (en) * | 2019-05-30 | 2019-09-06 | 南宁学院 | A kind of reactive compensation control system |
| CN110266020A (en) * | 2019-07-19 | 2019-09-20 | 汇源电气有限公司 | A kind of power system reactive power compensation device and its application method |
| CN110460064A (en) * | 2018-05-07 | 2019-11-15 | 成都市中朋达电气有限公司 | Mineral hot furnace intelligent powerless compensation system |
| CN110970897A (en) * | 2018-09-28 | 2020-04-07 | 国网山东省电力公司威海供电公司 | Distribution network current compensation device |
| CN111668854A (en) * | 2020-05-18 | 2020-09-15 | 安徽徽电科技股份有限公司 | Compensation system for medium-high voltage power grid |
| CN111864735A (en) * | 2020-07-22 | 2020-10-30 | 安徽交通职业技术学院 | Switching compensation system |
| CN113241775A (en) * | 2021-06-24 | 2021-08-10 | 指明集团有限公司 | Low-cost reactive compensation control system |
| CN113890111A (en) * | 2021-09-17 | 2022-01-04 | 上海好创机电工程有限公司 | Electric energy optimization intelligent control device |
| CN114362200A (en) * | 2021-12-27 | 2022-04-15 | 国网江苏省电力有限公司连云港供电分公司 | Interactive simplified low-voltage SVG device and implementation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202564958U (en) * | 2012-02-07 | 2012-11-28 | 王建本 | Reactive compensation device for electric carry-scraper |
| CN207218251U (en) * | 2017-05-26 | 2018-04-10 | 广东雅景工程有限公司 | A kind of novel electric power system reactive power compensation device |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202564958U (en) * | 2012-02-07 | 2012-11-28 | 王建本 | Reactive compensation device for electric carry-scraper |
| CN207218251U (en) * | 2017-05-26 | 2018-04-10 | 广东雅景工程有限公司 | A kind of novel electric power system reactive power compensation device |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107546758A (en) * | 2017-09-30 | 2018-01-05 | 北京英博新能源有限公司 | A kind of three-phase current adjusting means and method |
| CN110460064A (en) * | 2018-05-07 | 2019-11-15 | 成都市中朋达电气有限公司 | Mineral hot furnace intelligent powerless compensation system |
| CN110970897A (en) * | 2018-09-28 | 2020-04-07 | 国网山东省电力公司威海供电公司 | Distribution network current compensation device |
| CN110212550A (en) * | 2019-05-30 | 2019-09-06 | 南宁学院 | A kind of reactive compensation control system |
| CN110266020A (en) * | 2019-07-19 | 2019-09-20 | 汇源电气有限公司 | A kind of power system reactive power compensation device and its application method |
| CN111668854A (en) * | 2020-05-18 | 2020-09-15 | 安徽徽电科技股份有限公司 | Compensation system for medium-high voltage power grid |
| CN111864735A (en) * | 2020-07-22 | 2020-10-30 | 安徽交通职业技术学院 | Switching compensation system |
| CN111864735B (en) * | 2020-07-22 | 2024-04-16 | 安徽交通职业技术学院 | Switching compensation system |
| CN113241775A (en) * | 2021-06-24 | 2021-08-10 | 指明集团有限公司 | Low-cost reactive compensation control system |
| CN113241775B (en) * | 2021-06-24 | 2022-03-11 | 指明集团有限公司 | Low-cost reactive compensation control system |
| CN113890111A (en) * | 2021-09-17 | 2022-01-04 | 上海好创机电工程有限公司 | Electric energy optimization intelligent control device |
| CN114362200A (en) * | 2021-12-27 | 2022-04-15 | 国网江苏省电力有限公司连云港供电分公司 | Interactive simplified low-voltage SVG device and implementation method thereof |
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Application publication date: 20170822 |