CN202678977U - Reactive power management apparatus for voltage of transformer station - Google Patents
Reactive power management apparatus for voltage of transformer station Download PDFInfo
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- CN202678977U CN202678977U CN 201220291880 CN201220291880U CN202678977U CN 202678977 U CN202678977 U CN 202678977U CN 201220291880 CN201220291880 CN 201220291880 CN 201220291880 U CN201220291880 U CN 201220291880U CN 202678977 U CN202678977 U CN 202678977U
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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
Abstract
The utility model relates to a reactive power management apparatus for voltage of a transformer station. The apparatus comprises a signal collection unit and a microcomputer control unit. The signal collection unit contains a voltage transformer and a current transformer on a high-tension side, a current transformer on a low-tension side, and a current transformer on a magnetron reactor. The magnetron reactor is arranged on a high-tension bus in parallel. The microcomputer control unit contains an analog quantity converting circuit, a processor and a pulse trigger output circuit. An A phase, a B phase and a C phase of the high-tension bus are respectively connected with an A phase FC filtering capacitor branch, a B phase FC filtering capacitor branch and a C phase FC filtering capacitor branch. The voltage transformer and the current transformer on the high-tension side, the current transformer on the low-tension side, and the current transformer on the magnetron reactor are all connected with the processor via the analog quantity converting circuit. A pulse output terminal of the processor is in connection with the magnetron reactor successively through the pulse trigger output circuit and a direct current excitation circuit. The reactive power management apparatus for voltage of the transformer station, provided by the utility model, is high in reliability, rapid in response and low in energy consumption.
Description
(1), technical field:
The utility model relates to a kind of reactive management device, particularly a kind of transforming plant voltage reactive management devices.
(2), background technology:
The reactive management device is applicable to be installed in load or burden without work to be changed frequently in the electric power system, such as wind-powered electricity generation, photovoltaic plant, arc furnace, milling train, mine hoist, electric locomotive, electric welding machines etc. contain in enterprise's high voltage supply system of large-scale reactive power impact equipment, the reactive management device is widely used in power industry, petrochemical industry, metallurgical, water conservancy, mining, light industry, machinery, automobile making, shipbuilding, port and pier, municipal administration, the every field of the national economy such as traffic and defence and military, the structure of existing reactive management device is complicated, volume is larger, energy consumption is higher, can not satisfy customer requirements.
(3), utility model content:
The technical problems to be solved in the utility model is: not enough for prior art, provide that a kind of reliability is high, fast response time, transforming plant voltage reactive management devices that energy consumption is little.
The technical solution of the utility model:
A kind of transforming plant voltage reactive management devices, contain signal gathering unit and microcomputer control unit, contain the current transformer of on high-tension side voltage transformer, on high-tension side current transformer, low-pressure side and the current transformer on the magnet controlled reactor in the signal gathering unit, magnet controlled reactor is connected in parallel on the high voltage bus, and microcomputer control unit contains analog quantity change-over circuit, processor (CPU) and pulse-triggered output circuit; The A phase of high voltage bus, B phase and C go up mutually and are connected to respectively mutually FC filtering capacitor branch road of A phase FC filtering capacitor branch road, B phase FC filtering capacitor branch road and C, the current transformer that the current transformer of on high-tension side voltage transformer, on high-tension side current transformer, low-pressure side is connected with magnet controlled reactor is connected with the voltage/current signals input of processor by the analog quantity change-over circuit, the pulse output end of processor is connected with the input of DC excitation circuit by the pulse-triggered output circuit, and the dc output end of DC excitation circuit is connected with the control end of magnet controlled reactor.
Microcomputer control unit also contains signal drive circuit, the A that A phase FC filtering capacitor props up the A phase of A phase contact, reactor of route vacuum contactor and capacitor group is in series and forms, the B that B phase FC filtering capacitor props up the B phase of B phase contact, reactor of route vacuum contactor and capacitor group is in series and forms, and the C that C phase FC filtering capacitor props up the C phase of C phase contact, reactor of route vacuum contactor and capacitor group is in series and forms; The contactor control signal output of processor is connected with the coil of vacuum contactor by signal drive circuit.
State microcomputer control unit and also contain input/output interface, the fault-signal output of capacitor group (being the two ends of the discharge coil of capacitor group) is connected with the input of capacitor testing circuit, and the output of capacitor testing circuit is connected with the capacitor detection signal input of processor by input/output interface.
The control signal output of processor is connected by the control end of the circuit breaker in input/output interface and the capacitor switch cabinet, and magnet controlled reactor, A phase FC filtering capacitor branch road, B phase FC filtering capacitor branch road and C mutually FC filtering capacitor branch road are connected on the high voltage bus by the circuit breaker in the capacitor switch cabinet.
The control signal output of processor is connected with the main transformer shunting switch by input/output interface.The main transformer shunting switch is to regulate main transformer to use in the underproof situation of the voltage of low-pressure side.
Magnet controlled reactor is miniature magnet controlled reactor.
The beneficial effects of the utility model:
1. the utility model adopts FC filtering capacitor branch road and magnet controlled reactor to carry out the reactive power compensation of transformer station, adopts processor (CPU) that FC filtering capacitor branch road and magnet controlled reactor are detected and control; FC filtering capacitor branch road provides electric power system needed capacitive reactive power, can also reach simultaneously the purpose of harmonic wave control, magnet controlled reactor is used for balance sysmte because the unnecessary capacitive reactive power that the fluctuation of load produces, and can steady load impact the voltage fluctuation that produces.The utility model is organically combined miniature magnet controlled reactor (low capacity magnet controlled reactor) and FC filtering capacitor branch road, reached optimum reactive power compensation performance, solved under little load condition, magnet controlled reactor is connected in parallel on the defective that consumes in the electrical network than macro-energy, effective energy savings, having inherited again magnet controlled reactor simultaneously has the advantages such as reliability is high, fast response time, continuous stepless is adjustable, occupation of land is little, non-maintaining.
(4), description of drawings:
Fig. 1 is the schematic block circuit diagram of transforming plant voltage reactive management devices.
(5), embodiment:
Referring to Fig. 1, among the figure, the transforming plant voltage reactive management devices contains signal gathering unit 1 and microcomputer control unit 2, contain the current transformer of on high-tension side voltage transformer, on high-tension side current transformer, low-pressure side and the current transformer on the magnet controlled reactor in the signal gathering unit 1, magnet controlled reactor is connected in parallel on the high voltage bus, and microcomputer control unit 2 contains analog quantity change-over circuit, processor (CPU) and pulse-triggered output circuit; The A phase of high voltage bus, B phase and C go up mutually and are connected to respectively mutually FC filtering capacitor branch road of A phase FC filtering capacitor branch road, B phase FC filtering capacitor branch road and C, the current transformer that the current transformer of on high-tension side voltage transformer, on high-tension side current transformer, low-pressure side is connected with magnet controlled reactor is connected with the voltage/current signals input of processor by the analog quantity change-over circuit, the pulse output end of processor is connected with the input of DC excitation circuit by the pulse-triggered output circuit, and the dc output end of DC excitation circuit is connected with the control end of magnet controlled reactor.
State microcomputer control unit 2 and also contain input/output interface, the fault-signal output of capacitor group 5 (being the two ends of the discharge coil of capacitor group) is connected with the input of capacitor testing circuit, and the output of capacitor testing circuit is connected with the capacitor detection signal input of processor by input/output interface.
The control signal output of processor is connected by the control end of the circuit breaker in input/output interface and the capacitor switch cabinet, and magnet controlled reactor, A phase FC filtering capacitor branch road, B phase FC filtering capacitor branch road and C mutually FC filtering capacitor branch road are connected on the high voltage bus by the circuit breaker in the capacitor switch cabinet.
The control signal output of processor is connected with the main transformer shunting switch by input/output interface.The main transformer shunting switch is to regulate main transformer to use in the underproof situation of the voltage of low-pressure side.
Magnet controlled reactor is miniature magnet controlled reactor.
Claims (6)
1. transforming plant voltage reactive management devices, contain signal gathering unit and microcomputer control unit, it is characterized in that: contain the current transformer of on high-tension side voltage transformer, on high-tension side current transformer, low-pressure side and the current transformer on the magnet controlled reactor in the signal gathering unit, magnet controlled reactor is connected in parallel on the high voltage bus, and microcomputer control unit contains analog quantity change-over circuit, processor and pulse-triggered output circuit; The A phase of high voltage bus, B phase and C go up mutually and are connected to respectively mutually FC filtering capacitor branch road of A phase FC filtering capacitor branch road, B phase FC filtering capacitor branch road and C, the current transformer that the current transformer of on high-tension side voltage transformer, on high-tension side current transformer, low-pressure side is connected with magnet controlled reactor is connected with the voltage/current signals input of processor by the analog quantity change-over circuit, the pulse output end of processor is connected with the input of DC excitation circuit by the pulse-triggered output circuit, and the dc output end of DC excitation circuit is connected with the control end of magnet controlled reactor.
2. transforming plant voltage reactive management devices according to claim 1, it is characterized in that: described microcomputer control unit also contains signal drive circuit, the A that A phase FC filtering capacitor props up the A phase of A phase contact, reactor of route vacuum contactor and capacitor group is in series and forms, the B that B phase FC filtering capacitor props up the B phase of B phase contact, reactor of route vacuum contactor and capacitor group is in series and forms, and the C that C phase FC filtering capacitor props up the C phase of C phase contact, reactor of route vacuum contactor and capacitor group is in series and forms; The contactor control signal output of processor is connected with the coil of vacuum contactor by signal drive circuit.
3. transforming plant voltage reactive management devices according to claim 2, it is characterized in that: the described microcomputer control unit of stating also contains input/output interface, the fault-signal output of capacitor group is connected with the input of capacitor testing circuit, and the output of capacitor testing circuit is connected with the capacitor detection signal input of processor by input/output interface.
4. transforming plant voltage reactive management devices according to claim 1, it is characterized in that: described microcomputer control unit also contains input/output interface, the control signal output of processor is connected by the control end of the circuit breaker in input/output interface and the capacitor switch cabinet, and magnet controlled reactor, A phase FC filtering capacitor branch road, B phase FC filtering capacitor branch road and C mutually FC filtering capacitor branch road are connected on the high voltage bus by the circuit breaker in the capacitor switch cabinet.
5. transforming plant voltage reactive management devices according to claim 1, it is characterized in that: described microcomputer control unit also contains input/output interface, and the control signal output of processor is connected with the main transformer shunting switch by input/output interface.
6. transforming plant voltage reactive management devices according to claim 1, it is characterized in that: described magnet controlled reactor is miniature magnet controlled reactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220291880 CN202678977U (en) | 2012-06-20 | 2012-06-20 | Reactive power management apparatus for voltage of transformer station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220291880 CN202678977U (en) | 2012-06-20 | 2012-06-20 | Reactive power management apparatus for voltage of transformer station |
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| Publication Number | Publication Date |
|---|---|
| CN202678977U true CN202678977U (en) | 2013-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220291880 Expired - Fee Related CN202678977U (en) | 2012-06-20 | 2012-06-20 | Reactive power management apparatus for voltage of transformer station |
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| CN (1) | CN202678977U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105576668A (en) * | 2014-10-11 | 2016-05-11 | 湖南电器研究所 | Passive filtering and reactive compensation device based on magnetic control tuning |
| CN110212549A (en) * | 2019-05-24 | 2019-09-06 | 宁波市电力设计院有限公司 | Multifunctional unit power distribution equipment |
-
2012
- 2012-06-20 CN CN 201220291880 patent/CN202678977U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105576668A (en) * | 2014-10-11 | 2016-05-11 | 湖南电器研究所 | Passive filtering and reactive compensation device based on magnetic control tuning |
| CN110212549A (en) * | 2019-05-24 | 2019-09-06 | 宁波市电力设计院有限公司 | Multifunctional unit power distribution equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130116 Termination date: 20160620 |