CN201682289U - Intelligent reactive power compensation device - Google Patents
Intelligent reactive power compensation device Download PDFInfo
- Publication number
- CN201682289U CN201682289U CN2010201501029U CN201020150102U CN201682289U CN 201682289 U CN201682289 U CN 201682289U CN 2010201501029 U CN2010201501029 U CN 2010201501029U CN 201020150102 U CN201020150102 U CN 201020150102U CN 201682289 U CN201682289 U CN 201682289U
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- power
- switching
- compensation
- switching value
- power factor
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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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
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Abstract
The utility model discloses an intelligent reactive power compensation device, which comprises a centralized control cabinet and a decentralized compensation chamber. The centralized control cabinet comprises a power factor compensation instrument and a plurality of local power capacitors connected with the power factor compensation instrument, and the decentralized compensation chamber comprises a terminal power capacitor. The power factor compensation instrument can generate a plurality of switching quantities and respectively transmit the switching quantities to the local power capacitors and the decentralized compensation chamber, the switching quantities generated by the power factor compensation instrument are prior to control switching of the local power capacitors, the decentralized compensation chamber can control switching of the local power capacitors after receiving signals of the switching quantities, and then the switching quantities can cut off rapidly. The utility model can effectively reduce the harmful impact of the reactive current on the intermediate equipment of the circuit, and can efficiently control the circuit power loss between the ammeter metering position and the terminal equipment while satisfying assessment requirements of the power sector for the power factor.
Description
Technical field
The utility model relates to electric power system low voltage reactive power compensation technical field, relates in particular to the intelligent powerless compensation device of a kind of switchgear house centralized control, end-equipment dispersion compensation.
Background technology
In using electric process, electric power is idle to be transformed into magnetic field by electric energy a little while, is transformed into electric energy by magnetic energy again a little while.The electric power that therefore a large amount of inductive loads (transformer, motor, relay etc.) need electrical network to provide is idle to be very big.A large amount of reactive currents flows in electrical network and has brought very big harm for change distribution line and power consumption equipment, has also caused the significant wastage of electric energy.
At present, the centralized compensation mode is adopted in most low pressure electricity consumptions, and centralized compensation can improve power supply capacity, and burning voltage is saved grid line loss and loss on transmission, but can not be controlled the ammeter Metrology Division to circuit power loss between end-equipment.Can not implement effective increase-volume to subscriber's line.Local compensation, this mode is less relatively, and reactive power compensation on the spot device and motor are dropped into simultaneously or excise, and can control the ammeter Metrology Division to circuit power loss between end-equipment, and subscriber's line is implemented increase-volume.But often occurred mending or few the benefit, and occurred often satisfying the examination requirement of power department, can not realize automation control, be unfavorable for energy-conservation power factor.
The utility model content
The utility model embodiment technical problem to be solved is, a kind of intelligent powerless compensation device is provided, efficiently in the control sets control cubicle to the power loss of circuit between end-equipment.
In order to solve the problems of the technologies described above, the utility model embodiment provides a kind of intelligent powerless compensation device, and it comprises centralized control cabinet and dispersion compensation case; Described centralized control cabinet comprises power factor compensation instrument and several local power capacitors that are attached thereto, and described dispersion compensation case comprises terminal power capacitor; Described power factor compensation instrument produces several switching values and sends local power capacitor and described dispersion compensation case respectively to, the switching value that the power factor compensation instrument produces is preferentially controlled local power capacitor and is carried out switching, the dispersion compensation case makes terminal power capacitor switching after receiving the switching value signal, and this moment, local power capacitor disconnected rapidly.
More preferably, described centralized control cabinet comprises that also switching value carrier wave transmitter is connected with described power factor compensation instrument, and described dispersion compensation case comprises that also switching value carrier wave receiver is connected with described terminal power capacitor; The switching value that described power factor compensation instrument produces is exported to described switching value carrier wave transmitter and is handled, and utilizes power carrier to be sent to the switching value carrier wave receiver of described dispersion compensation case again, thereby controls the switching of terminal power capacitor.
Further, at least eight switching values of described power factor compensation instrument output wherein have at least four switching values to control local power capacitor.
Further, all include the power carrier control module in described switching value carrier wave transmitter and the switching value carrier wave receiver, be used to provide the UART asynchronous serial communication interface, be used for the exchanges data and the control of described switching value.
Further, described local power capacitor has certain surplus when designing, and the capacity of each road power capacitor is all different, and described power factor compensation instrument is set at the switching pattern of selecting.
Implement the utility model embodiment, have following beneficial effect: the power capacitor of control cubicle carries out switching in the preferential choice set of power factor compensation instrument in the utility model, after the switching value that power carrier is carried makes the terminal power capacitor switching of dispersion compensation case, the power capacitor of centralized control cabinet disconnects rapidly, makes always to keep the power factor of circuit about 0.95.The utility model can effectively reduce the harmful impact of reactive current to the circuit intermediate equipment, require under the prerequisite satisfying the examination of power department power factor, can control the ammeter Metrology Division efficiently to circuit power loss between end-equipment, be a kind of effective energy saver.
Description of drawings
Fig. 1 is the high-level schematic functional block diagram of a kind of intelligent powerless compensation device of the utility model;
Fig. 2 is a centralized control cabinet circuit diagram in one embodiment in a kind of intelligent powerless compensation device of the utility model;
Fig. 3 is a dispersion compensation case circuit connection diagram in one embodiment in a kind of intelligent powerless compensation device of the utility model the utility model.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, the utility model is described in further detail below in conjunction with accompanying drawing.
The utility model discloses a kind of intelligent type low-voltage reactive compensation system, belong to electric power system low voltage reactive power compensation technical field.It can reach the purification electrical network, and the power factor of keeping circuit is about 0.95.Can control the ammeter Metrology Division efficiently to circuit power loss between end-equipment, circuit is implemented effective increase-volume.
The purpose of this utility model is achieved through the following technical solutions: with reference to figure 1, the intelligent powerless compensation device of a kind of switchgear house centralized control, end-equipment dispersion compensation comprises centralized control cabinet 1 and dispersion compensation case 2;
Described centralized control cabinet 1 comprises power factor compensation instrument 11 and several local power capacitors 12 that are attached thereto, and includes terminal power capacitor 22 in the described dispersion compensation case 2;
Described power factor compensation instrument 11 produces several switching values and sends local power capacitor 12 and described dispersion compensation case 2 respectively to, the switching value that the power factor compensation instrument produces is preferentially controlled local power capacitor 12 and is carried out switching, dispersion compensation case 2 makes terminal power capacitor 22 switchings after receiving the switching value signal, and this moment, local power capacitor 12 disconnected rapidly.
Further, described centralized control cabinet 1 comprises that also switching value carrier wave transmitter 13 is connected with described power factor compensation instrument 11, and described dispersion compensation case 2 comprises that also switching value carrier wave receiver 21 is connected with described terminal power capacitor 22; The switching value that described power factor compensation instrument 11 produces is exported to described switching value carrier wave transmitter 13 and is handled, and utilizes power carrier to be sent to the switching value carrier wave receiver 21 of described dispersion compensation case 2 again, thereby controls the switching of terminal power capacitor 22.
Particularly, with reference to the circuit diagram of the reactive power compensation centralized control cabinet of the present utility model shown in the figure 2.Comprise power factor compensation instrument 11, switching value carrier wave transmitter 13, isolating switch, fuse, current transformer, A.C. contactor, local power capacitor 12 (self-healing power capacitor) in the centralized control cabinet of the present utility model, discharge circuit.The signal output port of the power factor compensation instrument 11 in the centralized control cabinet has been exported 8 switching values at least, wherein have at least 4 switching values directly to control local power capacitor 12, the circuit connection of this compensation equipment, accessory constant, control mode compensate consistent with the concentrated automated power factor of routine.After all the other had at least 4 switching values to handle by switching value carrier wave transmitter 13, power carrier was transported to terminal dispersion compensation case again, and terminal power capacitor is implemented to drop into or excision; Power capacitor in the centralized control cabinet has certain surplus when designing, and each road capacitor volume is all different.Centralized control cabinet power factor compensation instrument is set at the switching pattern of selecting, when power carrier is carried 2 above switching value signals, the switching time of the power capacitor of terminal dispersion compensation case can lag behind, and the power capacitor of control cubicle carries out switching in the preferential choice set of power factor compensation instrument meeting this moment.After the switching value signal that power carrier is carried made the power capacitor switching of terminal dispersion compensation case, the power capacitor of centralized control cabinet can disconnect rapidly.The power factor of always keeping circuit is about 0.95.
Dispersion compensation case of the present utility model comprises switching value carrier wave receiver 21, isolating switch, fuse, A.C. contactor, terminal power capacitor 22 (self-healing power capacitor), power supply indication and discharge circuit.Reactive power compensation dispersion compensation case of the present utility model, concrete connected mode with reference to the accompanying drawings 3.After the switching value signal that the dispersion compensation case adopts power carrier to carry was captured by switching value carrier wave receiver, terminal power capacitor was implemented to drop into or excision.Can make terminal compensation realize intelligent control, require under the prerequisite satisfying the examination of power department to power factor simultaneously, can control the ammeter Metrology Division efficiently to circuit power loss between end-equipment, tail end line is longer more effectively.
The Based Intelligent Control that switchgear house centralized control, end-equipment dispersion compensation intelligent powerless compensation device adopt the power carrier module end-equipment to be carried out reactive power compensation, both satisfied the examination requirement of power department to power factor, have and to reduce the ammeter Metrology Division to circuit power loss between end-equipment, tail end line is longer more effectively, and subscriber's line is implemented increase-volume.
Above disclosed only is a kind of preferred embodiment of the utility model, can not limit the interest field of the utility model certainly with this, and therefore the equivalent variations of being done according to the utility model claim still belongs to the scope that the utility model is contained.
Claims (5)
1. an intelligent powerless compensation device is characterized in that comprising centralized control cabinet and dispersion compensation case;
Described centralized control cabinet comprises power factor compensation instrument and several local power capacitors that are attached thereto, and described dispersion compensation case includes terminal power capacitor;
Described power factor compensation instrument produces several switching values and sends local power capacitor and described dispersion compensation case respectively to, the switching value that the power factor compensation instrument produces is preferentially controlled local power capacitor and is carried out switching, the dispersion compensation case makes terminal power capacitor switching after receiving the switching value signal, and this moment, local power capacitor disconnected rapidly.
2. intelligent powerless compensation device as claimed in claim 1, it is characterized in that, described centralized control cabinet comprises that also switching value carrier wave transmitter is connected with described power factor compensation instrument, and described dispersion compensation case comprises that also switching value carrier wave receiver is connected with described terminal power capacitor; The switching value that described power factor compensation instrument produces is exported to described switching value carrier wave transmitter and is handled, and utilizes power carrier to be sent to the switching value carrier wave receiver of described dispersion compensation case again, thereby controls the switching of terminal power capacitor.
3. intelligent powerless compensation device as claimed in claim 2 is characterized in that, at least eight switching values of described power factor compensation instrument output wherein have at least four switching values to control local power capacitor.
4. intelligent powerless compensation device as claimed in claim 3, it is characterized in that, all include the power carrier control module in described switching value carrier wave transmitter and the switching value carrier wave receiver, be used to provide the UART asynchronous serial communication interface, be used for the exchanges data and the control of described switching value.
5. intelligent powerless compensation device as claimed in claim 4 is characterized in that, described local power capacitor has certain surplus when designing, and the capacity of each road power capacitor is all different, and described power factor compensation instrument is set at the switching pattern of selecting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201501029U CN201682289U (en) | 2010-03-30 | 2010-03-30 | Intelligent reactive power compensation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201501029U CN201682289U (en) | 2010-03-30 | 2010-03-30 | Intelligent reactive power compensation device |
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| Publication Number | Publication Date |
|---|---|
| CN201682289U true CN201682289U (en) | 2010-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010201501029U Expired - Fee Related CN201682289U (en) | 2010-03-30 | 2010-03-30 | Intelligent reactive power compensation device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102969725A (en) * | 2012-11-05 | 2013-03-13 | 江苏赤那思电力科技有限公司 | Reactive compensation system of rural power grid line |
| CN103138276A (en) * | 2013-02-06 | 2013-06-05 | 广东电网公司佛山供电局 | Reactive compensation method and device of distributing line of high-power motor containing 10 kilovolt (KV) |
| CN103378599A (en) * | 2012-04-24 | 2013-10-30 | 上海致维电气有限公司 | Intelligent reactive power compensation system by means of power line communication mode |
| CN104158200A (en) * | 2014-08-27 | 2014-11-19 | 高憨才 | Automatic reactive power compensation control device |
-
2010
- 2010-03-30 CN CN2010201501029U patent/CN201682289U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103378599A (en) * | 2012-04-24 | 2013-10-30 | 上海致维电气有限公司 | Intelligent reactive power compensation system by means of power line communication mode |
| CN102969725A (en) * | 2012-11-05 | 2013-03-13 | 江苏赤那思电力科技有限公司 | Reactive compensation system of rural power grid line |
| CN103138276A (en) * | 2013-02-06 | 2013-06-05 | 广东电网公司佛山供电局 | Reactive compensation method and device of distributing line of high-power motor containing 10 kilovolt (KV) |
| CN103138276B (en) * | 2013-02-06 | 2016-03-02 | 广东电网公司佛山供电局 | A kind of reactive-load compensation method of the distribution line containing 10kV heavy-duty motor and device |
| CN104158200A (en) * | 2014-08-27 | 2014-11-19 | 高憨才 | Automatic reactive power compensation control device |
| CN104158200B (en) * | 2014-08-27 | 2016-05-25 | 高憨才 | A kind of reactive power automatic compensation control device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101222 Termination date: 20130330 |