CN103795065B - A kind of transformer station's power compensating device and power compensating method - Google Patents
A kind of transformer station's power compensating device and power compensating method Download PDFInfo
- Publication number
- CN103795065B CN103795065B CN201210424604.XA CN201210424604A CN103795065B CN 103795065 B CN103795065 B CN 103795065B CN 201210424604 A CN201210424604 A CN 201210424604A CN 103795065 B CN103795065 B CN 103795065B
- Authority
- CN
- China
- Prior art keywords
- switch
- phase electricity
- current
- voltage
- phase
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims description 11
- 230000005611 electricity Effects 0.000 claims abstract description 121
- 239000003990 capacitor Substances 0.000 claims abstract description 66
- 238000006243 chemical reaction Methods 0.000 claims abstract description 7
- 230000007704 transition Effects 0.000 claims description 6
- 229910052710 silicon Inorganic materials 0.000 claims description 5
- 239000010703 silicon Substances 0.000 claims description 5
- 235000019800 disodium phosphate Nutrition 0.000 claims description 2
- 230000001939 inductive effect Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/40—Arrangements for reducing harmonics
Abstract
The present invention proposes a kind of transformer station power compensating device, comprising: voltage and current acquisition module, for gathering three-phase electricity voltage and current; AD conversion unit, for changing the voltage and current of collection; First compensation arrangement, described first compensation arrangement comprises the first different building-out capacitor of many pool-sizes, multiple first switch and multiple inductance L 1, described often organize the first building-out capacitor connect with inductance L 1 after by the first switch be electrically connected; Second compensation arrangement, is serially connected between three-phase electricity, and described second compensation arrangement comprises the second different building-out capacitor of many pool-sizes and multiple second switch, and described often group after the second building-out capacitor is connected with single second switch is serially connected with between three-phase electricity; Control module, described control module exports the first control signal according to three-phase electricity voltage and current and controls the opening and closing of the first switch and export the opening and closing that the second control signal controls second switch; Described power compensating device can realize reactive power compensation and meritorious compensation.
Description
Technical field
The present invention relates to power back-off field, particularly relate to a kind of transformer station power compensating device.
Background technology
The power that electrical network exports comprises two parts, and one is active power, and two is reactive powers, direct consumption electric energy is mechanical energy converting electric energy, heat energy, chemical energy or acoustic energy, and utilize these energy works done, this part power is called active power, do not consume electric energy, just electric energy is converted to the energy of another kind of form, this can the necessary requirement of work done as electric equipment, and, this can be carry out periodicity conversion with electric energy in electrical network, this part power is called reactive power, as electromagnetic component sets up the electric energy that magnetic field takies, the electric energy shared by electric field set up by capacitor, electric current is in inductance element during work done, electric current lags behind voltage 90 °, and electric current is in capacity cell during work done, electric current leading voltage 90 °, electric current flows through the reactive power that inductance element brings and increase electric energy loss in electrical network exports, in order to reduce the electric energy loss caused by inductance element, need the reactive power reducing electrical network output.
The reactive power that the reactive-load compensation equipment reduction inductive loads such as shunt capacitor consume is installed in prior art usually in electrical network, decrease the reactive power that electric network source provides to inductive load, carried by circuit, owing to decreasing the flowing of reactive power in electrical network, the electric energy loss that circuit and transformer cause because of conveying reactive power therefore can be reduced; Such as, but in electrical network output procedure, there is nonlinear device in transformer station, therefore have harmonic current and exist, harmonic current can reduce the life-span of the capacitor carrying out reactive power compensation, and therefore harmonic carcellation electric current becomes industry urgent problem.
Summary of the invention
In order to solve in prior art in electric network reactive compensation harmonic current to the impact of building-out capacitor, thus the present invention proposes a kind of transformer station power compensating device, and described compensation arrangement comprises:
Voltage acquisition module, for gathering three-phase electricity voltage;
Current acquisition module, for gathering three-phase electricity electric current;
AD conversion unit, exports to control module after being changed by the three-phase electricity voltage and current of collection;
First compensation arrangement, described first compensation arrangement comprises the first different building-out capacitor of many pool-sizes, multiple first switch and multiple inductance L 1, described often organize the first building-out capacitor connect with inductance L 1 after by the first switch be electrically connected;
Second compensation arrangement, is serially connected between three-phase electricity, and described second compensation arrangement comprises the second different building-out capacitor of many pool-sizes and multiple second switch, and described often group after the second building-out capacitor is connected with single second switch is serially connected with between three-phase electricity;
Control module, described control module is for receiving the three-phase electricity voltage and current of collection, and export the first control signal according to three-phase electricity voltage and current and control the opening and closing of the first switch and then control the first compensation arrangement and realize reactive power compensation, and export the second control signal and control the opening and closing of second switch and then control active current that the second compensation arrangement realizes three-phase electricity and carry out shifting balancing the active current that three-phase electricity exports.
The present invention is directed to and prior art also teaches a kind of transformer station power compensating method, it is characterized in that, comprise reactive power compensation and active power compensation, also comprise current acquisition module, voltage acquisition module, the first compensation arrangement and the second compensation arrangement;
Wherein reactive power compensation step is as follows:
The electric current that in A1, collection three-phase electricity, each phase is electric mutually and voltage;
B1, by each phase in the three-phase electricity of collection, the electric current of electricity and voltage transitions are be transferred to control module after digital signal mutually;
The electric current of electricity and voltage export the first control signal and control the first compensation arrangement and carry out reactive power compensation to three-phase electricity mutually according to each phase for C1, control module;
Wherein active power compensation process is as follows:
The electric current that in A2, collection three-phase electricity, each phase is electric mutually and voltage;
B2, by each phase in the three-phase electricity of collection, the electric current of electricity and voltage transitions are be transferred to control module after digital signal mutually;
C2, control module according to each phase mutually the electric current of electricity and voltage export the second control signal and control the second compensation arrangement the active current of three-phase electricity is shifted mutually, make the Active current balance that three-phase electricity exports.
In described step C1, the first compensation arrangement comprises the first different building-out capacitor of many pool-sizes, multiple first switch and multiple inductance L 1, described often organize the first building-out capacitor connect with inductance L 1 after by the first switch be electrically connected; Described control module exports the first control signal according to the three-phase electricity voltage and current gathered and controls the first switch conduction or turn off to carry out capacitance compensation with one or more groups selecting in many groups the first building-out capacitor for electricity mutually;
In described step C2, the second compensation arrangement comprises the second different building-out capacitor of many pool-sizes and multiple second switch, and described often group after the second building-out capacitor is connected with single second switch is serially connected with between three-phase electricity; Described control module exports the second control signal according to the three-phase electricity voltage and current gathered and controls second switch conducting or turn off the active current of three-phase electricity to be shifted with one or more groups selecting in many groups the second building-out capacitor, the Active current balance exported to make three-phase electricity.
In transformer station of the present invention power compensating device, control module realizes the reactive power compensation of electricity mutually by control first compensation arrangement, namely to be coordinated with inductive element in electricity mutually by shunt capacitor in electricity mutually and carry out reactive power compensation, reduce the electric energy loss of mutually electric transmission line, improve delivery efficiency, in building-out capacitor, series inductance L1 prevents humorous wave interference simultaneously, and every the first compensation arrangement mutually mutually in electricity is multiple, and control module can select the first different compensation arrangements to compensate according to mutually electric electric current and voltage; Second compensation arrangement of the present invention is series at mutually between electricity in addition, control the second compensation arrangement realization active current that electricity exports mutually by control module mutually to balance, also be multiple with the second compensation arrangement between phase electricity, control module can have multiple choices as required.
Accompanying drawing explanation
Fig. 1 transformer station of the present invention power compensating device embodiment one circuit block diagram.
Fig. 2 transformer station of the present invention power compensating device embodiment two circuit block diagram.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.Should be understood that, embodiment described herein, only for instruction and explanation of the present invention, is not limited to the present invention.
It is to be noted, unless stated otherwise, when referred to hereinafter, term " control module " is for having analyzing and processing data function, can export control signal (such as impulse waveform) according to the moment of the condition of setting or setting thus control the controller of connected switching device correspondingly conducting or shutoff arbitrarily, such as, can be single-chip microcomputer.
Said " mutually electricity " is the abbreviation of three-phase electricity herein in addition.
Figure 1 shows that transformer station of the present invention power compensating device embodiment one, as can be seen from the figure, described transformer station power compensating device comprises: voltage acquisition module, for gathering three-phase electricity voltage; Current acquisition module, for gathering three-phase electricity electric current; AD conversion unit 2, exports to control module 1 after being changed by the three-phase electricity voltage and current of collection; First compensation arrangement 7, described first compensation arrangement comprises the first different building-out capacitor of many pool-sizes, multiple first K switch 1, multiple inductance L 1, and described often group after the first building-out capacitor is connected with inductance L 1 is connected with three-phase electricity by the first switch; Second compensation arrangement 8, is serially connected between three-phase electricity, and described second compensation arrangement comprises the second different building-out capacitor of many pool-sizes and multiple second switch K2, and described often group after the second building-out capacitor is connected with single second switch K2 is serially connected with between three-phase electricity; Control module 1, described control module is for receiving the three-phase electricity voltage and current of collection, and export the first control signal according to three-phase electricity voltage and current and control the opening and closing of the first switch and then control the first compensation arrangement and carry out reactive power compensation, and export the second control signal and control the opening and closing of second switch and then control active current that the second compensation arrangement realizes three-phase electricity and carry out shifting balancing the active current that three-phase electricity exports.
Control module described in embodiment one can be single-chip microcomputer, programmable logic controller (PLC) etc., the present embodiment one control module adopts the dual-cpu structure of low-power consumption, high performance 32 fixed DSPs and MCU, this structure simple and flexible, there is powerful controlling functions and data analysis capabilities, the requirement of real-time and accuracy can be met, and be convenient to the upgrading of systemic-function and software in the future.
As can be seen from Figure 1 the first compensation arrangement 7 of A phase in three-phase electricity and B phase electricity is illustrated in embodiment one, certain C phase electricity also has same A phase identical power compensating device electric with B phase, just not with illustrating, as can be seen from the figure every electricity mutually is all provided with the first compensation arrangement 7, such as A phase and B phase, first compensation arrangement is multiple, concrete number can be 2, 3, 4, in the present embodiment, every the first electric mutually mutually compensation arrangement 7 is 4, there is shown 2 the first compensation arrangements 7, the first building-out capacitor capacity in multiple first compensation arrangement 7 is different, the capacity of the first building-out capacitor preferably arranges according to certain rules, such as Geometric Sequence, when such as, the first compensation arrangement 7 in A phase electricity is 4, their the first building-out capacitor becomes the ratio of 1:2:4:8, first building-out capacitor of different large low capacity can be used for control module 1 to make different compensation according to the mutually electric electric current gathered and voltage, compensation range has more more options, and the first building-out capacitor can be the y-type structure of multiple electric capacity composition, also can be single capacitor, inductance L 1 is ordinary inductor, inductance L 1 can eliminate harmonic current on electricity mutually to the impact of the first building-out capacitor, such as, when Closing Switch K1 carries out reactive power compensation to A phase, if there is harmonic current, then inductance L 1 will hinder harmonic current to arrive the first building-out capacitor instantaneously, and harmonic current is crossed conference and burnt out the first building-out capacitor.
First K switch 1 controls the switching of the first compensation arrangement 7, first K switch 1 is specially controllable silicon and relay composes in parallel, controllable silicon is that two thyristor inverse parallels form, when control module 1 to control the first compensation arrangement carry out reactive power compensation time, export a signal control thyristor conducting, and then export the first control signal a1 control relay and power on and carry out conducting; When excising the first compensation arrangement, first disconnect relay, then disconnect controllable silicon, controllable silicon is in parallel with relay can prevent as the first switch damage first compensation arrangement that shoves.
As shown in Figure 1, in embodiment one, the second compensation arrangement 8 is for shifting active current between electricity mutually, such as after current acquisition module acquires three-phase electricity electric current outputs to control module, control module analysis show that A phase active current is greater than B phase active current, so control module sends the second control signal a2 and controls second switch K2 conducting, then the second building-out capacitor by A phase active current transfer part to B phase, realize the Active current balance that A phase exports with B phase, A phase and B phase the second compensation arrangement mutually between electricity is 4 groups, its Capacity Ratio is 1:2:4:8, shown in figure 2, the capacity of the second building-out capacitor in multiple second compensation arrangement is different, control module is facilitated to have more more options space according to compensation difference, improve compensation efficiency, second building-out capacitor equally can be arranged with the first building-out capacitor, and second switch K2 and the first K switch 1 also adopt same setting, no longer burdensome here, reactive power compensation can be combined with the first building-out capacitor with the second building-out capacitor be electrically connected in addition when second switch K2 disconnects, A phase such as shown in Fig. 1 is electricity mutually, when K switch 2 disconnects, when not carrying out active current transfer, control module 1 according to the current/voltage gathered control the second building-out capacitor and the first building-out capacitor be A phase mutually electricity carry out reactive power compensation, so the second building-out capacitor both can as meritorious compensation, also can as meritorious compensation.
As can be seen from Figure 1, in embodiment one, voltage acquisition module and current acquisition module are divided into A phase voltage acquisition module 3, A phase current acquisition module 4, B phase current acquisition module 5 and B phase voltage acquisition module 6, certainly the collection of C phase current voltage is also comprised, in the present embodiment, voltage acquisition module is voltage transformer, current acquisition module is current transformer, current transformer is connected on mutually in electricity, and voltage transformer is connected in parallel on mutually in electricity; The digital signal that analog-to-digital conversion module 2 identifies for the analog signal of collection being converted to control module, analog-to-digital conversion module can be arranged separately, also can be integrated in control module 1.
In embodiment one, the first compensation arrangement and the second compensation arrangement can compensate separately, also can compensate simultaneously, and concrete is controlled by control module 1.
Be illustrated in figure 2 transformer station of the present invention power compensating device embodiment two, embodiment two is with the difference of embodiment one as can be seen from Fig., and embodiment two also comprises three-phase electricity harmonic wave electrical signal collection module 9, resistance R, electric capacity C, inductance L 2 and the 3rd K switch 3; Described three-phase electricity harmonic wave electrical signal collection module is for gathering the three-phase electricity harmonic wave signal of telecommunication and exporting to control module; Be serially connected with between inductance L 1 and the first building-out capacitor after described inductance L 2 and the series connection of the 3rd K switch 3, described electric capacity C connects with resistance R, is connected after the electric capacity C after described series connection is in parallel with inductance L 1 with resistance R by the first K switch 1 with three-phase electricity; Described control module exports according to gathering three-phase electricity harmonic signal the opening and closing that the 3rd control signal a3 controls the 3rd K switch 3, programming Harmonic Current Limits is passed through in advance in described control module, when the harmonic current of harmonic wave electrical signal collection module acquires is greater than the Harmonic Current Limits arranged in control module, then output the 3rd control signal disconnection the 3rd K switch 3(K switch 3 normally closes), at this moment the first building-out capacitor exits compensation, prevents harmonic signal from burning out building-out capacitor; 3rd switch adopts same setting with the first switch and second switch; Harmonic signal acquisition module 9 is analog filter.
Part identical with embodiment one in embodiment two no longer describes.
The invention allows for a kind of power compensating method of transformer station, comprise reactive power compensation and active power compensation, also comprise current acquisition module, voltage acquisition module, the first compensation arrangement and the second compensation arrangement;
Wherein reactive power compensation step is as follows:
The electric current that in A1, collection three-phase electricity, each phase is electric mutually and voltage;
B1, by each phase in the three-phase electricity of collection, the electric current of electricity and voltage transitions are be transferred to control module after digital signal mutually;
The electric current of electricity and voltage export the first control signal and control the first compensation arrangement and carry out reactive power compensation to three-phase electricity mutually according to each phase for C1, control module;
Wherein active power compensation process is as follows:
The electric current that in A2, collection three-phase electricity, each phase is electric mutually and voltage;
B2, by each phase in the three-phase electricity of collection, the electric current of electricity and voltage transitions are be transferred to control module after digital signal mutually;
C2, control module according to each phase mutually the electric current of electricity and voltage export the second control signal and control the second compensation arrangement the active current of three-phase electricity is shifted mutually, make the Active current balance that three-phase electricity exports.
In step C1 described in the method for transformer station described above power back-off, the first compensation arrangement comprises the first different building-out capacitor of many pool-sizes, multiple first switch and multiple inductance L 1, described often organize the first building-out capacitor connect with inductance L 1 after by the first switch be electrically connected; Described control module exports the first control signal according to the three-phase electricity voltage and current gathered and controls the first switch conduction or turn off to carry out capacitance compensation with one or more groups selecting in many groups the first building-out capacitor for electricity mutually.
In step C2 described in the method for transformer station described above power back-off, the second compensation arrangement comprises the second different building-out capacitor of many pool-sizes and multiple second switch, and described often group after the second building-out capacitor is connected with single second switch is serially connected with between three-phase electricity; Described control module exports the second control signal according to the three-phase electricity voltage and current gathered and controls second switch conducting or turn off the active current of three-phase electricity to be shifted with one or more groups selecting in many groups the second building-out capacitor, the Active current balance exported to make three-phase electricity.
Control module of the present invention realizes the reactive power compensation of electricity mutually by control first compensation arrangement, namely to be coordinated with inductive element in electricity mutually by shunt capacitor in electricity mutually and carry out reactive power compensation, reduce the electric energy loss of mutually electric transmission line, improve delivery efficiency, in building-out capacitor, series inductance L1 prevents humorous wave interference simultaneously; Second compensation arrangement of the present invention is series at mutually between electricity in addition, controls the second compensation arrangement realization active current that electricity exports mutually mutually balance by control module.
Below the preferred embodiment of the present invention is described in detail by reference to the accompanying drawings; but; the present invention is not limited to the detail in above-mentioned execution mode; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition, each concrete technical characteristic described in above-mentioned embodiment, in reconcilable situation, can be combined by any suitable mode, in order to avoid unnecessary repetition, the present invention illustrates no longer separately to various possible compound mode.In addition, also can carry out combination in any between various different execution mode of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (8)
1. transformer station's power compensating device, is characterized in that, comprising:
Voltage acquisition module, for gathering three-phase electricity voltage;
Current acquisition module, for gathering three-phase electricity electric current;
AD conversion unit, exports to control module after being changed by the three-phase electricity voltage and current of collection;
First compensation arrangement, described first compensation arrangement comprises the first different building-out capacitor of many pool-sizes, multiple first switch and multiple inductance L 1, often organize described first building-out capacitor connect with inductance L 1 after by the first switch be electrically connected;
Second compensation arrangement, is serially connected between three-phase electricity, and described second compensation arrangement comprises the second different building-out capacitor of many pool-sizes and multiple second switch, often organizes after described second building-out capacitor is connected with single second switch and is serially connected with between three-phase electricity;
Control module, described control module is for receiving the three-phase electricity voltage and current of collection, and export the first control signal according to three-phase electricity voltage and current and control the opening and closing of the first switch and then control the first compensation arrangement and realize reactive power compensation, and export the second control signal and control the opening and closing of second switch and then control active current that the second compensation arrangement realizes three-phase electricity and carry out shifting balancing the active current that three-phase electricity exports;
Also comprise three-phase electricity harmonic wave electrical signal collection module, resistance R, electric capacity C, inductance L 2 and the 3rd switch;
Described three-phase electricity harmonic wave electrical signal collection module is for gathering the three-phase electricity harmonic wave signal of telecommunication and exporting to control module;
Be serially connected with between inductance L 1 and the first building-out capacitor after described inductance L 2 and the series connection of the 3rd switch, described electric capacity C connects with resistance R, is connected after the electric capacity C after described series connection is in parallel with inductance L 1 with resistance R by the first switch with three-phase electricity;
Described control module exports according to gathering three-phase electricity harmonic signal the opening and closing that the 3rd control signal controls the 3rd switch.
2. transformer station according to claim 1 power compensating device, is characterized in that, described control module adopts the inner core of 32 fixed DSPs and MCU.
3. transformer station according to claim 1 power compensating device, is characterized in that, described first switch and second switch are composed in parallel by controllable silicon and relay.
4. transformer station according to claim 1 power compensating device, is characterized in that, described voltage acquisition module is voltage transformer, and described current acquisition module is current transformer.
5. transformer station according to claim 1 power compensating device, is characterized in that, described three-phase electricity harmonic wave acquisition module is analog filter.
6. transformer station according to claim 1 power compensating device, is characterized in that, described first building-out capacitor is 4 groups, and its Capacity Ratio is 1:2:4:8.
7. transformer station according to claim 1 power compensating device, is characterized in that, described second building-out capacitor is 4 groups, and its Capacity Ratio is 1:2:4:8.
8. transformer station's power compensating method, is characterized in that, comprises reactive power compensation and active power compensation,
Also comprise current acquisition module, voltage acquisition module, the first compensation arrangement and the second compensation arrangement;
Wherein reactive power compensation step is as follows:
The electric current that in A1, collection three-phase electricity, each phase is electric mutually and voltage;
B1, by each phase in the three-phase electricity of collection, the electric current of electricity and voltage transitions are be transferred to control module after digital signal mutually;
The electric current of electricity and voltage export the first control signal and control the first compensation arrangement and carry out reactive power compensation to three-phase electricity mutually according to each phase for C1, control module;
Wherein active power compensation process is as follows:
The electric current that in A2, collection three-phase electricity, each phase is electric mutually and voltage;
B2, by each phase in the three-phase electricity of collection, the electric current of electricity and voltage transitions are be transferred to control module after digital signal mutually;
C2, control module according to each phase mutually the electric current of electricity and voltage export the second control signal and control the second compensation arrangement the active current of three-phase electricity is shifted mutually, make the Active current balance that three-phase electricity exports;
In described step C1, the first compensation arrangement comprises the first different building-out capacitor of many pool-sizes, multiple first switch and multiple inductance L 1, often organize described first building-out capacitor connect with inductance L 1 after by the first switch be electrically connected; Described control module exports the first control signal according to the three-phase electricity voltage and current gathered and controls the first switch conduction or turn off to carry out capacitance compensation with one or more groups selecting in many groups the first building-out capacitor for electricity mutually;
In described step C2, the second compensation arrangement comprises the second different building-out capacitor of many pool-sizes and multiple second switch, often organizes after described second building-out capacitor is connected with single second switch and is serially connected with between three-phase electricity; Described control module exports the second control signal according to the three-phase electricity voltage and current gathered and controls second switch conducting or turn off the active current of three-phase electricity to be shifted with one or more groups selecting in many groups the second building-out capacitor, the Active current balance exported to make three-phase electricity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210424604.XA CN103795065B (en) | 2012-10-31 | 2012-10-31 | A kind of transformer station's power compensating device and power compensating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210424604.XA CN103795065B (en) | 2012-10-31 | 2012-10-31 | A kind of transformer station's power compensating device and power compensating method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103795065A CN103795065A (en) | 2014-05-14 |
| CN103795065B true CN103795065B (en) | 2016-04-13 |
Family
ID=50670504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210424604.XA Expired - Fee Related CN103795065B (en) | 2012-10-31 | 2012-10-31 | A kind of transformer station's power compensating device and power compensating method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103795065B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105337329B (en) * | 2014-08-08 | 2018-09-18 | 国家电网公司 | Control method and device for charging station three-phase current |
| CN107528333A (en) * | 2017-09-07 | 2017-12-29 | 广东元森能源科技有限公司 | Three-phase electricity balanced output circuit and method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201260080Y (en) * | 2008-08-29 | 2009-06-17 | 东莞市友美电源设备有限公司 | Device for passive compensation and harmonic wave control for intelligent electric power system |
| CN102110985A (en) * | 2011-03-05 | 2011-06-29 | 中国船舶重工集团公司第七一二研究所 | Reactive power compensation device for thyristor cyclically-switched capacitor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3805835B2 (en) * | 1996-07-23 | 2006-08-09 | 関西電力株式会社 | Distribution line voltage and reactive power adjustment device |
-
2012
- 2012-10-31 CN CN201210424604.XA patent/CN103795065B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201260080Y (en) * | 2008-08-29 | 2009-06-17 | 东莞市友美电源设备有限公司 | Device for passive compensation and harmonic wave control for intelligent electric power system |
| CN102110985A (en) * | 2011-03-05 | 2011-06-29 | 中国船舶重工集团公司第七一二研究所 | Reactive power compensation device for thyristor cyclically-switched capacitor |
Non-Patent Citations (1)
| Title |
|---|
| "不平衡电流的危害及解决方法";王家强等;《2006年工业企业节电技术研讨会论文集》;20061230;181-186 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103795065A (en) | 2014-05-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102859861B (en) | Configurable hybrid converter circuit | |
| CN104218805B (en) | Unipolar-bipolar convertible direct-current converter | |
| CN109463029A (en) | AC to DC converter system | |
| US9391533B2 (en) | Power transmitting apparatus for digitally controlling voltage and current of alternating current signal | |
| CN110401252A (en) | Vehicle-mounted charge-discharge system | |
| CN105071679B (en) | The five level self-balancing inverters based on bridge switch capacitance module | |
| CN101640422B (en) | Series capacitance compensator | |
| CN106411109A (en) | High voltage and low voltage switching circuit for LLC (Logical Link Control) conversion output | |
| CN105958934A (en) | Power optimizer | |
| CN105915156A (en) | Photovoltaic power generation system with power optimizer | |
| CN103201926A (en) | Electrical power supply device for a nonlinear, temporally varying load | |
| CN104218840A (en) | Micro-grid energy storage topological inverter and method for operating same | |
| CN103795065B (en) | A kind of transformer station's power compensating device and power compensating method | |
| CN110854867A (en) | Electric energy quality comprehensive optimization system for electric energy substitution scene of low-voltage distribution network and control method thereof | |
| CN102412584A (en) | Integrated intelligent adjustment and compensation capacitor bank | |
| CN205583704U (en) | Not balancing control system of change secondary side is joined in marriage in low district of presenting a theatrical performance as last item on a programme | |
| CN107171270B (en) | Intensive deicing device constant current, constant pressure modularization dynamic passive compensation component | |
| CN205863934U (en) | Multiplexed-capacitor group switching module | |
| CN204992592U (en) | Static synchronous cascade compensation device | |
| CN107123980A (en) | Closed loop network running gear and its application process | |
| CN206060211U (en) | A kind of distribution system for improving power factor | |
| CN202633950U (en) | Integrated intelligent adjustment and compensation capacitor bank | |
| CN201219241Y (en) | Great current generator | |
| CN201515230U (en) | Series capacitor compensator | |
| CN204794322U (en) | Dc -to -ac converter and municipality's electrical zero switching circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160413 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |