CN101764409B - Testing device for voltage and reactive power comprehensive control system - Google Patents
Testing device for voltage and reactive power comprehensive control system Download PDFInfo
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- CN101764409B CN101764409B CN2009102511049A CN200910251104A CN101764409B CN 101764409 B CN101764409 B CN 101764409B CN 2009102511049 A CN2009102511049 A CN 2009102511049A CN 200910251104 A CN200910251104 A CN 200910251104A CN 101764409 B CN101764409 B CN 101764409B
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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 invention discloses a testing device for a voltage and reactive power comprehensive control system. The testing device is formed by four three-phase voltage regulators, an isolation transformer, a phase shifter, a power-factor meter, an ampere meter and three voltmeters. The input ends of the four three-phase voltage regulators are connected in parallel. The output end of a fist three-phase voltage regulator is connected with the current input end of a VQC device to be tested through the isolation transformer and the fist three-phase voltage regulator is used to provide three-phase current analog quantity. The output end of a second three-phase voltage regulator is connected with the high-voltage side of the VQC device to be tested through the phase shifter and the second three-phase voltage regulator is used to provide high-voltage side three-phase voltage analog quantity. The output end of a third three-phase voltage regulator is connected with the middle-voltage side of the VQC device to be tested and the third three-phase voltage regulator is used to provide middle-voltage side three-phase voltage analog quantity. The output end of a fourth three-phase voltage regulator is connected with the low-voltage side of the VQC device to be tested and the fourth three-phase voltage regulator is used to provide low-voltage side three-phase voltage analog quantity. The invention has the advantage that the testing device can comprehensively test the performance and the reliability of the VQC device.
Description
Technical field
The present invention relates to a kind of power equipment device for detecting performance, relate in particular to a kind of testing device for voltage and reactive power comprehensive control system.
Background technology
The voltage and reactive power complex control system; Its english abbreviation is VQC; It adopts computer technology, automatic control technology and Digital Signal Processing through gathering electrical network parameter in real time, controls main transformer on-load tap changer and compensation condenser automatically; Make main transformer on-load tap changer and capacitor group be in optimal operational condition, make voltage and Reactive Power Control within given range.Can effectively improve the transformer substation voltage qualification rate, reduce the wastage; Improve the electric power netting safe running level.
The producer that produces the VQC device at present is more; To the simulation test of the control performance of main control unit, intelligent main transformer control unit and intelligent capacitor control unit, need a cover checkout gear badly before how the technical performance of checkout gear and reliability and VQC device put into operation at the scene.
Summary of the invention
The present invention proposes a kind of testing device for voltage and reactive power comprehensive control system, it is made up of 4 three-phase regulators, isolating transformer, phase shifter, power factor meter, ammeter and three voltmeters; The input parallel connection of 4 three-phase regulators; The output of first three-phase regulator is connected with the current input terminal of voltage and reactive power complex control system to be measured through isolating transformer, and the three-phase current analog quantity is provided; The output of second three-phase regulator is connected with the high-pressure side of voltage and reactive power complex control system to be measured through phase shifter, and high-pressure side three-phase voltage analog quantity is provided; The output of the 3rd three-phase regulator is connected with the medium voltage side of voltage and reactive power complex control system to be measured, and medium voltage side three-phase voltage analog quantity is provided; The output of the 4th three-phase regulator is connected with the low-pressure side of voltage and reactive power complex control system to be measured, and low-pressure side three-phase voltage analog quantity is provided;
Power factor meter is connected on the U phase line behind the isolating transformer, power factor meter also with phase shifter after the V phase line be connected with the W phase line, detect on high-tension side active power and reactive power and power factor;
Ammeter is connected on the V phase line behind the isolating transformer, detects the high voltage side current of voltage and reactive power complex control system;
Three voltmeters are connected to behind circuit behind the phase shifter, the 3rd three-phase regulator behind circuit and the 4th three-phase regulator on the circuit, detect the Uac index of three-line.
On testing device for voltage and reactive power comprehensive control system, also be provided with two-way bridge rectification power output and one road single-phase alternating current source output terminal, for treating side voltage and reactive power complex control system two-way DC power supply and one road single phase alternating current power supply are provided.
Useful technique effect of the present invention is: a kind of checkout gear that can carry out complete detection to the Performance And Reliability of VQC device is provided.
Description of drawings
Fig. 1, structural circuit sketch map of the present invention;
The additional supply circuit diagram that Fig. 2, the present invention are provided with for VQC equipment;
Fig. 3, present device outline drawing.
Embodiment
A kind of testing device for voltage and reactive power comprehensive control system is characterized in that: it is made up of 4 three-phase regulator A, B, C, D, isolating transformer TB, phase shifter YXQ, power factor meter YB, ammeter A1 and three voltmeter V; The input parallel connection of 4 three-phase regulator A, B, C, D; The output of first three-phase regulator A is connected with the current input terminal of VQC equipment to be measured through isolating transformer TB, and the three-phase current analog quantity is provided; The output of second three-phase regulator B is connected with the high-pressure side of VQC equipment to be measured through phase shifter YXQ, and high-pressure side three-phase voltage analog quantity is provided; The output of the 3rd three-phase regulator C is connected with the medium voltage side of VQC equipment to be measured, and medium voltage side three-phase voltage analog quantity is provided; The output of the 4th three-phase regulator D is connected with the low-pressure side of VQC equipment to be measured, and low-pressure side three-phase voltage analog quantity is provided; Power factor meter YB is connected on the U phase line behind the isolating transformer TB, power factor meter YB also with phase shifter YXQ after the V phase line be connected with the W phase line, detect on high-tension side active power and reactive power and power factor; Ammeter A1 is connected on the V phase line behind the isolating transformer TB, detects the high voltage side current of VQC equipment; Three voltmeter V are connected to behind circuit behind the phase shifter YXQ, the 3rd the three-phase regulator C behind circuit and the 4th the three-phase regulator D on the circuit, detect the Uac index of three-line.On testing device for voltage and reactive power comprehensive control system, also be provided with two-way bridge rectification power output and one road single-phase alternating current source output terminal, for treating side VQC equipment two-way DC power supply and one road single phase alternating current power supply are provided.
Also be respectively arranged with a circuit breaker K on the input of 4 three-phase regulator A, B, C, D, the startup through the corresponding three-phase regulator of closure/disconnection control of circuit breaker K/close; On the main power source input, also be provided with a circuit breaker K, in order to the On/Off of control main power source.5 circuit breaker K respectively are connected with an indicator light circuit, in order to the circuit breaker K state of indication relevant position; On three phase lines of the input of 4 three-phase regulator A, B, C, D, also be connected with three indicator lights, in order to indicate whether phase shortage of corresponding phase line;
Three voltmeter V two ends are connected with the W phase line with the U phase line that belongs to separately on the circuit respectively, detect its Uac index; On the circuit behind the ammeter A1, also be provided with two testing terminal DZ, in order to the verification electric current.
For ease VQC equipment is detected; On testing device for voltage and reactive power comprehensive control system; Also be provided with two-way bridge rectification power output and one road single-phase alternating current source output terminal, two-way DC power supply and one road single phase alternating current power supply be provided for treating side VQC equipment.The output of bridge rectification power circuit is connected to filter; Wherein, single phase alternating current power supply output 220V single-phase alternating current, two-way bridge rectification power export the 220V direct current respectively and the 24V direct current is specialized in Microcomputer Detecting dress usefulness.
The display part of circuit breaker K, indicator light, voltmeter V, the display part of ammeter A1, the display part of power factor meter YB and the control section of three-phase regulator are arranged on the panel compactly, are convenient to operating personnel's identification and operation.The control section of phase shifter YXQ is arranged on the device near the position of panel, is convenient to operation.
Equipment performance is following:
1) testing apparatus can be simulated the Uac of the on high-tension side Uab of main transformer, Ucb, Ia, Ic, medium voltage side, the electric parameters such as Uac of low-pressure side, and can simulate main transformer in the high-pressure side of the diverse location of on-load voltage regulation tap, the voltage of medium voltage side, low-pressure side.
2) testing apparatus can be simulated the electric current variation of the on high-tension side Ia of main transformer, Ic.
3) in the time of simulating the diverse location of switching capacitance group and transformer on-load voltage regulating tap, running status.For this reason, control and simulate high, medium and low change in voltage of main transformer and electric current variation respectively with 4 three-phase regulator A, B, C, D and isolating transformer TB.The phase change of the electric current and voltage that causes with phase shifter YXQ (electronic phase shifting apparatus) simulation and control capacitance switching, thereby simulation and control the variation of reactive power.For the transformer station of tertiary voltage, earlier the target voltage side is taked nine district figure control strategies, when the target side busbar voltage, idle all be in the normal region after, just transfer opposite side voltage is carried out assist control.If secondary side voltage is out-of-limit, just make full use of the effect of parallel capacitor, also to control the voltage of secondary side in the acceptability limit as far as possible, secondary side is only carried out capacitor switching control by the voltage bound.A group capacitor of bus, the more following group capacitor of throwing respective bus bars in limited time of secondary side voltage are answered in the last cut in limited time of secondary side voltage.Medium voltage side be target side still be low-pressure side be that target side can be set according to user's needs.And can on nine district figure of VQC device, simulate the VQC device realistically in the corresponding to effect of transformer station's actual motion.
4) be the operational effect of simulated field, the high, medium and low voltage voltmeter is housed on the monitor station table top, ammeter, power factor meter.
5) following indicating device is arranged:
A. the anxious discontinuance of main transformer shows;
B. main transformer step-down indication;
C. the main transformer indication of boosting;
D. main transformer faulty indication;
E. electric capacity excision indication;
F. electric capacity input indication;
G. electric capacity faulty indication;
H. pressure regulation locking indication;
I. external fault indication;
J. distant place control indication.
6) 33 switching value outputs of simulation.
Claims (2)
1. testing device for voltage and reactive power comprehensive control system, it is characterized in that: it is made up of 4 three-phase regulators (A, B, C, D), isolating transformer (TB), phase shifter (YXQ), power factor meter (YB), ammeter (A1) and three voltmeters (V); The input parallel connection of 4 three-phase regulators (A, B, C, D); The output of first three-phase regulator (A) is connected with the current input terminal of voltage and reactive power complex control system to be measured through isolating transformer (TB), and the three-phase current analog quantity is provided; The output of second three-phase regulator (B) is connected with the high-pressure side of voltage and reactive power complex control system to be measured through phase shifter (YXQ), and high-pressure side three-phase voltage analog quantity is provided; The output of the 3rd three-phase regulator (C) is connected with the medium voltage side of voltage and reactive power complex control system to be measured, and medium voltage side three-phase voltage analog quantity is provided; The output of the 4th three-phase regulator (D) is connected with the low-pressure side of voltage and reactive power complex control system to be measured, and low-pressure side three-phase voltage analog quantity is provided;
Power factor meter (YB) is connected on the U phase line behind the isolating transformer (TB), power factor meter (YB) also with phase shifter (YXQ) after the V phase line be connected with the W phase line, detect on high-tension side active power and reactive power and power factor;
Ammeter (A1) is connected on the V phase line behind the isolating transformer (TB), detects the high voltage side current of voltage and reactive power complex control system;
Three voltmeters (V) are connected on phase shifter (YXQ) back circuit, the 3rd three-phase regulator (C) back circuit and the 4th three-phase regulator (D) the back circuit, detect the Uac index of three-line.
2. a kind of testing device for voltage and reactive power comprehensive control system according to claim 1; It is characterized in that: on testing device for voltage and reactive power comprehensive control system; Also be provided with two-way bridge rectification power output and one road single-phase alternating current source output terminal, two-way DC power supply and one road single phase alternating current power supply be provided for treating side voltage and reactive power complex control system.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102511049A CN101764409B (en) | 2009-12-31 | 2009-12-31 | Testing device for voltage and reactive power comprehensive control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102511049A CN101764409B (en) | 2009-12-31 | 2009-12-31 | Testing device for voltage and reactive power comprehensive control system |
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| CN101764409A CN101764409A (en) | 2010-06-30 |
| CN101764409B true CN101764409B (en) | 2012-04-11 |
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| CN108279345B (en) * | 2018-02-05 | 2020-12-29 | 中铁武汉电气化局集团有限公司 | Power substation power transmission testing device |
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Address after: The 401121 northern New District of Chongqing Municipality Avenue No. 60 Golden Star Building 14 Applicant after: Chongqing Langtian Communication Co.,Ltd. Address before: The 401121 northern New District of Chongqing Municipality Avenue No. 60 Golden Star Building 14 Applicant before: Chongqing Langtian Communicational Equipment Co., Ltd. |
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