CN102593843A - Cloud compensation system for reactive power - Google Patents
Cloud compensation system for reactive power Download PDFInfo
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- CN102593843A CN102593843A CN2012100431959A CN201210043195A CN102593843A CN 102593843 A CN102593843 A CN 102593843A CN 2012100431959 A CN2012100431959 A CN 2012100431959A CN 201210043195 A CN201210043195 A CN 201210043195A CN 102593843 A CN102593843 A CN 102593843A
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Abstract
The invention discloses a cloud compensation system for reactive power, which comprises reactive compensation devices arranged at low-voltages end of power transformers at different levels in a power grid and or a user end. The reactive compensation devices are all configured with reactive compensation terminals which are communicated with one another and communicated with the corresponding reactive compensation devices through serial ports; a reactive router is communicated with a control platform arranged at an electricity management section through a wire interface module and is communicated with the reactive compensation terminals; the reactive compensation devices collect self operating rate data which is sequentially sent to the control platform through the corresponding reactive compensation terminals and the reactive router; and the reactive compensation terminals control switching of the corresponding reactive devices in real time according to the order sent to the control platform from the reactive router. According to the invention, the cloud compensation system reasonably switches the reactive compensation equipment, so as to realize the optimized and fine compensation for the reactive power in the power grid under the condition of increasing little input.
Description
Technical field
The present invention relates to the compensation equipment of power system reactive power, especially a kind of reactive power cloud bucking-out system.
Background technology
In electric power network,, at present mainly be that power transmission and distribution link at electrical network adopts capacitor switching, or adopts current transformer to regulate dual mode to compensate to the compensation of reactive power.The major defect that this bucking-out system exists: one, adopt the capacitor switching compensation, fling-cut equipment is fixed, and the compensation inaccuracy because the fluctuation of power system reactive power is crossed and mended or owe to mend, usually makes energy-saving effect give a discount; Two, adopt the current transformer compensation, can realize Continuous Compensation, but input cost is very high reactive power; Three, the power transmission and distribution link at electrical network compensates, and is on bus, to compensate, and reactive capability is big, apparatus expensive, in case damage, big to electric network influencing, maintenance, replacing trouble.
To sum up, there is limitation in the use of reactive power compensating apparatus in the electrical network at present, and electricity needs increase change is very fast; In a short time; This electricity needs also can be along with the fluctuation of economy, and acute variation, and reactive power is from the power delivery to the compensation equipment or user side; Because the line loss of transmission line will produce extra loss.
Summary of the invention
The objective of the invention is to: a kind of reactive power cloud bucking-out system is provided, can on the basis of existing electrical network,,, realizes optimization, fine compensation reactive power in the electrical network dropping under the few prerequisite of increase through reasonable use reactive-load compensation equipment.
For realizing above-mentioned purpose, the present invention can take following technical proposals:
A kind of reactive power cloud of the present invention bucking-out system; Comprise the reactive power compensator that is arranged at each grade power transformer low-pressure end in the electrical network and/or user side respectively; Each said reactive power compensator all is furnished with the reactive power compensation terminal; The control module of each reactive power compensation terminal and corresponding reactive power compensator is through intercom through the remote communication module that sets within it between serial communication and each the reactive power compensation terminal mutually; Also comprise at least one idle router, said idle router is communicated by letter with the controlling platform that is arranged at electric administrative department through its netting twine interface module and is communicated by letter with the remote communication module at each said reactive power compensation terminal through its route remote communication module; Each reactive power compensator is gathered the running state data of himself and the power system reactive power data of corresponding position; Pass to controlling platform through corresponding reactive power compensation terminal, said idle router successively; Each said reactive power compensation terminal is according to the instruction of the controlling platform of being come by idle router transmission; Control the switching of corresponding reactive power compensator in real time, to realize compensation to the reactive power of electrical network.
Said controlling platform is according to the reactive power data at each reactive power compensator place and the running state data of each reactive power compensator; Switching to each reactive power compensator sorts; Near the preferential switching large-capacity electrical apparatus reactive power compensator, maximum until the power factor of electrical network.
Said reactive power compensation terminal also comprises control chip one, serial communication modular, memory module, display module and button; Said button is used to restart and the reactive power compensation terminal is set; Said display module is used to show the running status at reactive power compensation terminal and the information that reports an error; Said memory module is used to store the error message at reactive power compensation terminal, so that adjusting is carried out at the reactive power compensation terminal; Said idle router comprises control chip two, route remote communication module, information temporary storage device, netting twine interface module, connects button and indicator light; Said connection button is used to be provided with parameter and restarts idle router; Said indicator light is used to indicate running status, power supply status and the data passes state of idle router, and said information temporary storage device is used to store the operating state and the idle information characteristics key element at reactive power compensation terminal; Said controlling platform comprises display unit, host computer and slave computer; Said host computer comprises figure generation module, data disaply moudle, abnormal information processing module; Said slave computer comprises control chip three, platform communication module and keyboard; Said figure generation module is used to generate block diagram information; Said data disaply moudle is used for the demonstration of LED viewing area, and said abnormal information processing module is used for abnormal data information processing and demonstration, the control chip three-dimensional host computer Data transmission reactive power data and the abnormal data information of said slave computer.
Parallel connection is provided with feature identification module and information Recognition module between the information temporary storage device of said idle router and the control chip two; Information characteristics key element that the feature identification module stores is idle; When control chip sends write command, by the character recognition module characteristic element of the idle information of write and the idle information characteristics key element in the information temporary storage device are compared earlier, only upgrade different idle information characteristics key elements; And register; The information Recognition module extracts the idle information characteristics in the information temporary storage device, and the information that has sent to controlling platform with control chip two is compared, and the idle information characteristics key element that only will upgrade sends to control chip two; Updating element, said idle information characteristics key element comprises: reactive power compensation terminal address, periodicity and reactive power.
Compared with prior art the invention has the beneficial effects as follows: owing to adopt technique scheme, grade power transformer low-pressure end of each in electrical network and/or user side are equipped with reactive power compensator, and each said reactive power compensator all is furnished with the reactive power compensation terminal; The running state data of the corresponding reactive power compensator of each reactive power compensator collection and the power system reactive power data of corresponding position pass to controlling platform through corresponding reactive power compensation terminal, said idle router successively, and each said reactive power compensation terminal is according to the instruction of the controlling platform of being come by idle router transmission; Control the switching of corresponding reactive power compensator in real time; Realizing compensation to the reactive power of electrical network, the reactive power cloud bucking-out system of this structure, overcome that prior art only compensates on bus that the reactive capability that is brought is big, apparatus expensive, in case damage defective such as, maintain and replace trouble big to electric network influencing; Can be on the basis of the reactive power compensator that has electrical network now; Through the control of said controlling platform, rationally each said reactive power compensator of switching drops under the few prerequisite of increase; Can communicate between the reactive power compensation terminal with one-level; Upper level reactive power compensation terminal and next stage reactive power compensation terminal room can communicate, and whether the state that reactive power cloud bucking-out system can collect each reactive power compensator (that is, is in running status; Capacity; How many compensation capacities is at present, also remains how many compensation capacities), thus instruction sent through controlling platform; Each reactive power compensator what of switching and switching compensation whether in the control electrical network, with realize to the reactive power at each position in the electrical network carry out in real time, accurate compensation (being that the reactive power cloud compensates).
Further beneficial effect is; Said controlling platform is according to the reactive power data at each reactive power compensator place and the running state data of each reactive power compensator; Switching to each reactive power compensator sorts; Near the preferential switching large-capacity electrical apparatus reactive power compensator, maximum until the power factor of electrical network.Can utilize the reactive power compensator that is distributed in the dispersion in the electrical network like this; Under the regulation and control of system; It is required idle to synthesize effective compensation, and the reactive power that reduces compensation is from the power delivery to the compensation equipment or the extra loss that produces because of the line loss of transmission line of user side.
Further beneficial effect is again; Because the introducing of idle router, between the information temporary storage device of said idle router and control chip two and be provided with feature identification module and information Recognition module, information characteristics key element that the feature identification module stores is idle; When control chip sends write command; By the character recognition module characteristic element of the idle information of write and the idle information characteristics key element in the information temporary storage device are compared earlier, only upgrade different idle information characteristics key elements, and register; The information Recognition module extracts the idle information characteristics in the information temporary storage device; The information that has sent to controlling platform with control chip two is compared, and the idle information characteristics key element that only will upgrade sends to control chip two, updating element; Said idle information characteristics key element comprises: reactive power compensation terminal address, periodicity and reactive power; Such system configuration, solved since in the electrical network state information amount of the electric network reactive compensation device of the data message amount of reactive power and corresponding position huge and directly restrict the computer reactive compensation system to the transmission of the collection of related data, control data, and the difficult problems such as raising of arithmetic speed, reduced cost; Improve arithmetic speed, thereby further optimized the compensation effect of power system reactive power.
Description of drawings
Fig. 1 is the layout and the communication structure sketch map at reactive power compensation of the present invention terminal;
Fig. 2 is the syndeton sketch map of reactive power compensation of the present invention terminal in electrical network;
Fig. 3 is the structural representation at reactive power compensation of the present invention terminal;
Fig. 4 is the structural representation of idle router of the present invention;
Fig. 5 is the local optimum structural representation of Fig. 4;
Fig. 6 is the structural representation of controlling platform of the present invention.
Embodiment
Shown in Fig. 1 to 6, a kind of reactive power cloud of the present invention bucking-out system comprises reactive power compensator 1, reactive power compensation terminal 2, idle router three and controlling platform 4;
Said reactive power compensation terminal 2 comprises control chip 1, serial communication modular 202, memory module 203, remote communication module 204, display module 205 and button 206; Said button 206 is used to restart and reactive power compensation terminal 2 is set; Said display module 205 is used to show the running status at reactive power compensation terminal 2 and the information that reports an error; Said memory module 203 is used to store the error message at reactive power compensation terminal 2, so that controlling platform 4 or manual work are carried out adjusting to reactive power compensation terminal 2.This just makes reactive power compensation of the present invention terminal to gather existing reactive power compensator information in the electrical network; The running state data of reactive power compensator and the power system reactive power data of corresponding position in controlling platform (control system) transmission electrical network; And real-time director data to corresponding reactive power compensator transmission controlling platform; The switching of control reactive power compensator, thus realized the reactive power at each position in the electrical network is carried out in real time, compensated accurately.With respect to former reactive power compensator; The combination of reactive power compensation of the present invention terminal and reactive power compensator; Make reactive power compensator through the reactive power compensation terminal realized with the control centre platform between intercommunication mutually; Make the compensation equipment of reactive power compensator from grid nodes become a kind of can communicating with controlling platform as required, situation such as operation exception are in time sent to controlling platform, and be controlled platform control.With respect to former reactive power compensator; What is more important; Reactive power compensation of the present invention terminal possesses the function of mutual communication; This just makes and can carry out networking flexibly as required between compensation equipment, and the quantity that constitutes the reactive power compensation terminal of subnet can be from 2 to n platforms, and the numeral of n (final platform number) depends on the communication protocol that is adopted; The flexible communications at reactive power compensation terminal and the characteristics of networking make the reactive power compensation terminal have multiple mode of operation, except local compensation; Also having---the abnormality processing pattern: in case occur unusually, the reactive power compensator in the electrical network sends to the reactive power compensation terminal with error message through serial ports; The reactive power compensation terminal is transmitted to controlling platform and reactive power compensation terminal on every side with this information again; Under the control of control centre,, resume operation again through the information that send at the reactive power compensation terminal; Cooperative work mode: the reactive power compensation terminal, through remote communication module, carry out mutual communication; The collaborative compensation of accomplishing for a certain part of electrical network; The realization compensation that becomes more meticulous compared to prior art, compensates meticulousr; Compensation is more optimized, and more helps giving full play to the performance of existing reactive power compensator in the electrical network;
Said idle router three is different from the Internet network router; Its purpose is not the forwarding of realization information between different sub-network; But realize the information state at reactive power compensation terminal 2 is transmitted to controlling platform 4, the instruction of controlling platform 4 is transmitted to reactive power compensation terminal 2.Said idle router three comprises control chip 2 301, route remote communication module 302, information temporary storage device 303, netting twine interface module 304, connects button 305 and indicator light 306; Said control chip 2 301 is made up of single-chip microcomputer or asic chip or FPGA; Said connection button 305 is used to be provided with parameter and restarts idle router three; Said indicator light 306 is used to indicate running status, power supply status and the data passes state of idle router three, and said information temporary storage device 303 is used to store the operating state at reactive power compensation terminal 2; As preferably; Between the information temporary storage device 303 of idle router three and the control chip 2 301 and be provided with feature identification module 307 and information Recognition module 308; The idle information characteristics key element of feature identification module 307 storages; When control chip sends write command, the characteristic element of the idle information of write is compared earlier different idle information characteristics key element in the lastest imformation buffer 303 with information temporary storage device 303 interior idle information characteristics key elements by character recognition module 307; And register; Information Recognition module 307 extracts the idle information characteristics in the information temporary storage device 303, and the information that has sent to controlling platform 4 with control chip 2 301 is compared, and the idle information characteristics key element that only will upgrade sends to control chip 2 301; Upgrade idle information characteristics key element, said idle information characteristics key element comprises: reactive power compensation terminal address, periodicity and reactive power;
Said controlling platform 4 comprises display unit 401, host computer and slave computer; Said host computer comprises figure generation module 402, data disaply moudle 403, abnormal information processing module 404; Said slave computer comprises control chip 3 405, platform communication module 406 and keyboard 407; Said figure generation module 402 is used to generate block diagram information; Said data disaply moudle 403 is used for the demonstration of LED viewing area, and said abnormal information processing module 404 is used for abnormal data information processing and demonstration, and the control chip 3 405 of said slave computer is to host computer Data transmission reactive power data and abnormal data information;
Power transformer low-pressure ends at different levels and the bigger user side of electrical capacity are equipped with reactive power compensator 1 in the electrical network; Each said reactive power compensator 1 all is furnished with described reactive power compensation terminal 2; The control module 101 of each reactive power compensation terminal 2 and corresponding reactive power compensator 1 is through intercom through the remote communication module 204 that sets within it between serial communication and each the reactive power compensation terminal 2 mutually, and idle router three is communicated by letter with the controlling platform that is arranged at electric administrative department 4 through its netting twine interface module 304 and passed through its route remote communication module 302 and communicate by letter with the remote communication module 204 at each said reactive power compensation terminal 2; Each reactive power compensator 1 is gathered the running state data of himself and the power system reactive power data of corresponding position; Pass to controlling platform 4 through corresponding reactive power compensation terminal 2, said idle router three successively; Each said reactive power compensation terminal 2 is according to the instruction of the controlling platform 4 of being come by idle router three transmission; Control the switching of corresponding reactive power compensator 1 in real time, to realize compensation to the reactive power of electrical network.As preferably; Said controlling platform 4 is according to the reactive power data at each reactive power compensator 1 place and the running state data of each reactive power compensator; Switching to each reactive power compensator 1 sorts; Near the preferential switching large-capacity electrical apparatus reactive power compensator 1, maximum until the power factor of electrical network.
Claims (4)
1. reactive power cloud bucking-out system; Comprise the reactive power compensator (1) that is arranged at each grade power transformer low-pressure end in the electrical network and/or user side respectively; It is characterized in that: each said reactive power compensator (1) all is furnished with reactive power compensation terminal (2); The control module (101) of each reactive power compensation terminal (2) and corresponding reactive power compensator (1) is through intercom through the remote communication module (204) that sets within it between serial communication and each the reactive power compensation terminal (2) mutually; Also comprise at least one idle router (3), said idle router (3) is communicated by letter with the controlling platform that is arranged at electric administrative department (4) through its netting twine interface module (304) and is communicated by letter with the remote communication module (204) at each said reactive power compensation terminal (2) through its route remote communication module (302);
Each reactive power compensator (1) is gathered the running state data of himself and the power system reactive power data of corresponding position; Pass to controlling platform (4) through corresponding reactive power compensation terminal (2), said idle router (3) successively; Each said reactive power compensation terminal (2) is according to the instruction of the controlling platform (4) of being come by idle router (3) transmission; Control the switching of corresponding reactive power compensator (1) in real time, to realize compensation to the reactive power of electrical network.
2. reactive power cloud bucking-out system according to claim 1; It is characterized in that: the reactive power data that said controlling platform (4) is located according to each reactive power compensator (1) and the running state data of each reactive power compensator; Switching to each reactive power compensator (1) sorts; Near the preferential switching large-capacity electrical apparatus reactive power compensator (1), maximum until the power factor of electrical network.
3. reactive power cloud bucking-out system according to claim 1 and 2; It is characterized in that: said reactive power compensation terminal (2) also comprises control chip one (201), serial communication modular (202), memory module (203), display module (205) and button (206); Said button (206) is used to restart and reactive power compensation terminal (2) is set; Said display module (205) is used to show the running status at reactive power compensation terminal (2) and the information that reports an error; Said memory module (203) is used to store the error message of reactive power compensation terminal (2), so that adjusting is carried out in reactive power compensation terminal (2);
Said idle router (3) comprises control chip two (301), route remote communication module (302), information temporary storage device (303), netting twine interface module (304), connects button (305) and indicator light (306); Said connection button (305) is used to be provided with parameter and restarts idle router (3); Said indicator light (306) is used to indicate running status, power supply status and the data passes state of idle router (3), and said information temporary storage device (303) is used to store the operating state and the idle information characteristics key element at reactive power compensation terminal (2);
Said controlling platform (4) comprises display unit (401), host computer and slave computer; Said host computer comprises figure generation module (402), data disaply moudle (403), abnormal information processing module (404); Said slave computer comprises control chip three (405), platform communication module (406) and keyboard (407); Said figure generation module (402) is used to generate block diagram information; Said data disaply moudle (403) is used for the demonstration of LED viewing area; Said abnormal information processing module (404) is used for abnormal data information processing and demonstration, and the control chip three (405) of said slave computer is to host computer Data transmission reactive power data and abnormal data information.
4. reactive power cloud bucking-out system according to claim 3; It is characterized in that: parallel connection is provided with feature identification module (307) and information Recognition module (308) between the information temporary storage device (303) of said idle router (3) and the control chip two (301); The idle information characteristics key element of feature identification module (307) storage; When control chip sends write command, by character recognition module (307) characteristic element of the idle information of write and the idle information characteristics key element in the information temporary storage device (303) are compared earlier, only upgrade different idle information characteristics key elements; And register; Information Recognition module (307) extracts the idle information characteristics in the information temporary storage device (303), and the information that has sent to controlling platform (4) with control chip two (301) is compared, and the idle information characteristics key element that only will upgrade sends to control chip two (301); Updating element, said idle information characteristics key element comprises: reactive power compensation terminal address, periodicity and reactive power.
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| CN201210043195.9A CN102593843B (en) | 2012-02-24 | 2012-02-24 | Cloud compensation system for reactive power |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101127442A (en) * | 2007-06-22 | 2008-02-20 | 泰州苏源科电有限公司 | Control method and system for 10kV and lower distribution grid no power voltage optimized operation |
| CN201315490Y (en) * | 2008-11-14 | 2009-09-23 | 山东鲁电电气集团有限公司 | 10kV line optimal reactive power compensation control system |
| CN202616782U (en) * | 2012-02-24 | 2012-12-19 | 杭州再灵电子科技有限公司 | Reactive power cloud compensation system |
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- 2012-02-24 CN CN201210043195.9A patent/CN102593843B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101127442A (en) * | 2007-06-22 | 2008-02-20 | 泰州苏源科电有限公司 | Control method and system for 10kV and lower distribution grid no power voltage optimized operation |
| CN201315490Y (en) * | 2008-11-14 | 2009-09-23 | 山东鲁电电气集团有限公司 | 10kV line optimal reactive power compensation control system |
| CN202616782U (en) * | 2012-02-24 | 2012-12-19 | 杭州再灵电子科技有限公司 | Reactive power cloud compensation system |
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