CN106099947A - A kind of coordinated control system and method thereof being applicable to mix reactive power compensator - Google Patents
A kind of coordinated control system and method thereof being applicable to mix reactive power compensator Download PDFInfo
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- CN106099947A CN106099947A CN201610620258.0A CN201610620258A CN106099947A CN 106099947 A CN106099947 A CN 106099947A CN 201610620258 A CN201610620258 A CN 201610620258A CN 106099947 A CN106099947 A CN 106099947A
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- power
- capacitor unit
- static reacance
- tsc
- reacance generator
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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
- H02J3/1828—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepwise control, the possibility of switching in or out the entire compensating arrangement not being considered as stepwise control
-
- 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
- H02J3/1835—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control
- H02J3/1842—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control wherein at least one reactive element is actively controlled by a bridge converter, e.g. active filters
-
- 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
- Y02E40/10—Flexible AC transmission systems [FACTS]
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Electrical Variables (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
A kind of coordinated control system and method thereof being applicable to mix reactive power compensator of the present invention, belong to the reactive power compensation technology field of power quality controlling, including power network current sensor, grid voltage sensor, data link, control terminal, thyristor switchable capacitor unit and power distribution network static reacance generator, power network current sensor and grid voltage sensor are separately positioned on electrical network, and both is connected with controlling terminal by data link；Thyristor switchable capacitor unit and power distribution network static reacance generator access electrical network in parallel, and are all connected with control terminal communication.It is 2:1 that this coordinated control system and method thereof give TSC and D STATCOM optimum capacity proportioning, TSC is made to be capable of classification Large Copacity reactive-load compensation, D STATCOM is capable of between TSC two-stage adjusting continuously, and both TSC and D STATCOM complementation realizes low cost, jumbo quick compensating reactive power.
Description
Technical field
The invention belongs to the reactive power compensation technology field of power quality controlling, be related specifically to one and be applicable to mix idle
The coordinated control system of compensation device and method thereof.
Background technology
Electric energy is one of important symbol of a national development level and overall national strength, as the pillar energy of modern society
With economic lifeline be our daily production, live indispensable.As AC electric power systems design and an operating weight
Wanting factor, reactive power is closely bound up with the economical operation of power system and safety and stability.A lot of industry of low-voltage network are negative
Lotus all consumes substantial amounts of reactive power, and idle deficiency can cause system power factor to reduce, and voltage landing and flickering, this is serious
Have impact on the quality of power supply.As can be seen here, power system is greatly developed Technology of Dynamic Reactive Power Compensation imperative, have important
Realistic meaning.
Thyristor switchable capacitor TSC (Thyristor switched capacitor) is by two anti-parallel thyristors
It is in series with compensating capacitor, is come a kind of reactive power compensator of compensating power, TSC production cost by switched capacitor
Relatively low, but the reactive-load compensation of classification can only be carried out, and also efficiency is low, and control accuracy is the highest, it is also possible to bring harm to electrical network.
The core texture of power distribution network static reacance generator D-STATCOM is from commutation bridge circuit, from commutation bridge-type electricity
Road is through linked reactor or is directly parallel on electrical network, utilizes the control to circuit breaker in middle break-over of device Yu shutoff, regulation electricity
The phase place of road AC institute output voltage, change voltage magnitude, it is also possible to directly change the size of the electric current of AC, make distribution
The electric current that net static reacance generator D-STATCOM circuit sends can offset reactive current unnecessary in electrical network, thus realizes
Purpose to electrical network quick compensating reactive power continuously.Power distribution network static reacance generator D-STATCOM can not only compensate nothing constantly
Merit, also acts as the effect maintaining voltage stabilization, and fast response time, does not has unnecessary loss, only because high cost and capacity
Limited, do not popularized.
Hybrid dynamic reactive compensation device, it is therefore an objective to TSC and D-STATCOM two parts are combined in certain capacity ratio
Realize the reduction of product cost and the lifting of performance, owing to hybrid dynamic reactive compensation device has low cost, compensation precision
Height, to features such as the fuctuation within a narrow range load responding time are fast, all possesses, at a lot of aspects, the prospect of being widely applied.If but by TSC
Access system simple with D-STATCOM does not change its control strategy, only can cause the wave of D-STATCOM portion capacity
Take, and the advantage of D-STATCOM can not be played on compensation speed.
Therefore need badly in the middle of prior art and want a kind of new technical scheme to solve this problem.
Summary of the invention
The technical problem to be solved is: provides a kind of coordination being applicable to mix reactive power compensator and controls
System and method, overcome thyristor switchable capacitor of the prior art and are used alone with power distribution network static reacance generator
When respective shortcoming, combine both advantages, make TSC be capable of the jumbo reactive-load compensation of classification, D-STATCOM
The continuous adjustment being capable of between TSC two-stage, has reached to reduce the purpose of dynamic passive compensation system cost.
For achieving the above object, the present invention provides following technical scheme:
A kind of be applicable to mix reactive power compensator coordinated control system, it is characterized in that: include power network current sensor,
Grid voltage sensor, data link, control terminal, thyristor switchable capacitor unit and power distribution network static reacance occur
Device, described power network current sensor and grid voltage sensor be separately positioned on electrical network, power network current sensor and electrical network electricity
Pressure sensor is all connected with controlling terminal by data link；Described control terminal is connected with the communication system of power grids, controls terminal bag
Include processor, wireless communication transceiver, A/D converter and data storage, wherein wireless communication transceiver, A/D converter and
Data storage communicates to connect with processor respectively；Described thyristor switchable capacitor unit and power distribution network static reacance generator
Access in electrical network in parallel, and be all connected with control terminal communication.
Further, described thyristor switchable capacitor unit is by capacitor, reactor and two antiparallel IGCTs
Constitute, and the quantity of this thyristor switchable capacitor unit is more than three.
A kind of control method for coordinating being applicable to mix reactive power compensator, is characterized in that: this control method for coordinating uses
Described coordinated control system, comprises the following steps:
Step one, the voltage signal gathered in electrical network and current signal, and collection signal is sent to controlling terminal；
Step 2, described control terminal receive described collection signal, and calculate thyristor switchable capacitor unit and should put into
The capability value that the capability value of part and power distribution network static reacance generator should put into, and according to described thyristor switchable capacitor list
Unit should put into the capability value of part and send the first control command, should put into part according to described power distribution network static reacance generator
Capability value sends the second control command；
Step 3, described thyristor switchable capacitor unit receive described first control command and to send the first response idle
Compensate electric current；Described power distribution network static reacance generator receives described second control command and sends the second response reactive-load compensation electricity
Stream.
Further, thyristor switchable capacitor unit and power distribution network static reacance generator optimal in described step 2
Capacity ratio is 2:1.
By above-mentioned design, the present invention can bring following beneficial effect: in order to be able to realize TSC and D-STATCOM
The concordance of action and the complementarity of compensation capacity, the present invention provides a kind of coordination control being applicable to mix reactive power compensator
System and method processed, control terminal, according to the information gathered from electrical network, is processed by data, determines D-STATCOM's
Compensation capacity and the input of TSC or excision quantity, giving TSC and D-STATCOM optimum capacity proportioning is 2:1, TSC unit
Between optimum capacity proportioning be 1:1:1, signal is sent respectively to TSC and D-STATCOM simultaneously, according to higher level transmission number
According to, make TSC be capable of the jumbo reactive-load compensation of classification, the continuous adjustment that D-STATCOM is capable of between TSC two-stage,
Both TSC and D-STATCOM complementation realizes low cost, jumbo quick compensating reactive power.It is achieved thereby that
While ensureing that mixing arrangement accurate compensation is idle so that it is improve efficiency, reduce the cost manufacturing operation maintenance.
Accompanying drawing explanation
The invention will be further described with detailed description of the invention in explanation below in conjunction with the accompanying drawings:
Fig. 1 is a kind of coordinated control system structural representation being applicable to mix reactive power compensator of the present invention.
Fig. 2 is the structured flowchart controlling terminal in Fig. 1.
Fig. 3 is a kind of flow chart being applicable to mix the control method for coordinating of reactive power compensator of the present invention.
In figure: 1-power network current sensor, 2-grid voltage sensor, 3-data link, 4-control at terminal, 401-
Reason device, 402-wireless communication transceiver, 403-A/D converter, 404-data storage, 5-thyristor switchable capacitor unit,
6-power distribution network static reacance generator.
Detailed description of the invention
Refer to Fig. 1 and Fig. 2, a kind of coordinated control system being applicable to mix reactive power compensator, it is characterized in that: include
Power network current sensor 1, grid voltage sensor 2, data link 3, control terminal 4, thyristor switchable capacitor unit 5 and
Power distribution network static reacance generator 6, described power network current sensor 1 and grid voltage sensor 2 are separately positioned on electrical network, electric
Net current sensor 1 and grid voltage sensor 2 are all connected with controlling terminal 4 by data link 3；Described control terminal 4
It is connected with the communication system of power grids, controls terminal 4 and include that processor 401, wireless communication transceiver 402, A/D converter 403 and data are deposited
Reservoir 404, wherein wireless communication transceiver 402, A/D converter 403 and data storage 404 communicate with processor 401 respectively
Connect；Described thyristor switchable capacitor unit 5 and power distribution network static reacance generator 6 access in electrical network in parallel,
And all communicate to connect with control terminal 4.
Preferably, described thyristor switchable capacitor unit 5 is made up of capacitor, reactor and antiparallel IGCT,
And the quantity of this thyristor switchable capacitor unit 5 is more than three.
As it is shown on figure 3, a kind of flow chart being applicable to mix the control method for coordinating of reactive power compensator of the present invention, should
Control method for coordinating comprises the following steps
Step one, the voltage signal gathered in electrical network and current signal, and signal transmission will be gathered to controlling terminal 4；
Step 2, described control terminal 4 receive described collection signal, and calculate thyristor switchable capacitor unit 5 and should throw
Enter capability value and the capability value that should put into of power distribution network static reacance generator 6 of part, and according to described thyristor series capacitor
Device unit 5 should put into the capability value of part and send the first control command, should put into according to described power distribution network static reacance generator 6
The capability value of part sends the second control command；
Step 3, described thyristor switchable capacitor unit 5 receive described first control command and send the first response nothing
Merit compensates electric current；Described power distribution network static reacance generator 6 receives described second control command and sends the second idle benefit of response
Repay electric current.
Described control terminal 4 plays highly important role, in order to be able to realize the consistent of TSC with D-STATCOM action
Property and the complementarity of compensation capacity, control terminal 4 according to from electrical network gather information, processed by data, with D-
STATCOM maximum size is allocated idle as constraints, asks on the premise of formerly obtaining D-STATCOM compensation capacity
Go out the input number of TSC unit, enable mixing reactive power compensator to accurately compensate for.Give TSC and D-STATCOM
Optimum capacity proportioning be the optimum capacity proportioning between 2:1, TSC unit be 1:1:1, signal is sent respectively to simultaneously TSC and
D-STATCOM, according to the data of higher level's transmission, makes TSC be capable of the jumbo reactive-load compensation of classification, and D-STATCOM can
Realizing the continuous adjustment between TSC two-stage, both TSC and D-STATCOM complementation realizes low cost, jumbo quick compensation
Idle.While ensureing that mixing arrangement accurate compensation is idle so that it is improve efficiency, reduce the one-tenth manufacturing operation maintenance
This.In the case of low cost, the mode of two kinds of system mixing is used to be adjusted, it is possible to achieve Continuous Compensation, simultaneously to electricity
Pressure also has good compensation effect.
Claims (4)
1. it is applicable to mix a coordinated control system for reactive power compensator, it is characterized in that: include power network current sensor
(1), grid voltage sensor (2), data link (3), control terminal (4), thyristor switchable capacitor unit (5) and distribution
Net static reacance generator (6), described power network current sensor (1) and grid voltage sensor (2) be separately positioned on electrical network,
Power network current sensor (1) and grid voltage sensor (2) are all connected with controlling terminal (4) by data link (3)；Described
Control terminal (4) to be connected with the communication system of power grids, control terminal (4) and include processor (401), wireless communication transceiver (402), A/D
Converter (403) and data storage (404), wherein wireless communication transceiver (402), A/D converter (403) and data storage
Device (404) communicates to connect with processor (401) respectively；Described thyristor switchable capacitor unit (5) and power distribution network static reacance
Generator (6) accesses in electrical network in parallel, and all communicates to connect with control terminal (4).
A kind of coordinated control system being applicable to mix reactive power compensator the most according to claim 1, is characterized in that: institute
State thyristor switchable capacitor unit (5) to be made up of capacitor, reactor and two antiparallel IGCTs, and this IGCT is thrown
The quantity cutting capacitor unit (5) is more than three.
3. it is applicable to mix a control method for coordinating for reactive power compensator, it is characterized in that: this control method for coordinating uses such as
Coordinated control system described in claim 1, comprises the following steps:
Step one, the voltage signal gathered in electrical network and current signal, and collection signal is sent to controlling terminal (4)；
Step 2, described control terminal (4) receive described collection signal, and calculate thyristor switchable capacitor unit (5) and should throw
Enter capability value and the capability value that should put into of power distribution network static reacance generator (6) of part, and according to described thuristor throw-in and throw-off electricity
Container unit (5) should put into the capability value of part and send the first control command, according to described power distribution network static reacance generator (6)
The capability value that should put into part sends the second control command；
Step 3, described thyristor switchable capacitor unit (5) receive described first control command and to send the first response idle
Compensate electric current；Described power distribution network static reacance generator (6) receives described second control command and sends the second idle benefit of response
Repay electric current.
A kind of control method for coordinating being applicable to mix reactive power compensator the most according to claim 1, is characterized in that: institute
Stating the optimum capacity proportioning of thyristor switchable capacitor unit (5) and power distribution network static reacance generator (6) in step 2 is 2:
1。
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610620258.0A CN106099947A (en) | 2016-08-01 | 2016-08-01 | A kind of coordinated control system and method thereof being applicable to mix reactive power compensator |
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| CN201610620258.0A CN106099947A (en) | 2016-08-01 | 2016-08-01 | A kind of coordinated control system and method thereof being applicable to mix reactive power compensator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109449950A (en) * | 2018-12-05 | 2019-03-08 | 国网北京市电力公司 | A kind of SVG and capacitor compensation cabinet and the control system and method for machine compensation |
| CN112217217A (en) * | 2020-11-10 | 2021-01-12 | 新乡市万新电气有限公司 | Intelligent reactive compensation control method |
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| CN102508950A (en) * | 2011-10-14 | 2012-06-20 | 广东电网公司电力科学研究院 | Regional dispatching automatic system and method for communication between regional dispatching automatic system and remote monitoring diagnosis centre |
| CN105186531A (en) * | 2015-09-15 | 2015-12-23 | 安徽佑赛科技有限公司 | Hybrid dynamic reactive compensation apparatus and method |
| CN205986165U (en) * | 2016-08-01 | 2017-02-22 | 国家电网公司 | Coordinating control system suitable for mix reactive power compensator |
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2016
- 2016-08-01 CN CN201610620258.0A patent/CN106099947A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102508950A (en) * | 2011-10-14 | 2012-06-20 | 广东电网公司电力科学研究院 | Regional dispatching automatic system and method for communication between regional dispatching automatic system and remote monitoring diagnosis centre |
| CN105186531A (en) * | 2015-09-15 | 2015-12-23 | 安徽佑赛科技有限公司 | Hybrid dynamic reactive compensation apparatus and method |
| CN205986165U (en) * | 2016-08-01 | 2017-02-22 | 国家电网公司 | Coordinating control system suitable for mix reactive power compensator |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109449950A (en) * | 2018-12-05 | 2019-03-08 | 国网北京市电力公司 | A kind of SVG and capacitor compensation cabinet and the control system and method for machine compensation |
| CN109449950B (en) * | 2018-12-05 | 2021-11-02 | 国网北京市电力公司 | SVG and capacitance compensation cabinet parallel compensation control system and method |
| CN112217217A (en) * | 2020-11-10 | 2021-01-12 | 新乡市万新电气有限公司 | Intelligent reactive compensation control method |
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Application publication date: 20161109 |