CN103312183A - Power supply for electric reactor performance testing in phase-control rectifying circuit and test method thereof - Google Patents
Power supply for electric reactor performance testing in phase-control rectifying circuit and test method thereof Download PDFInfo
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- CN103312183A CN103312183A CN2013101964565A CN201310196456A CN103312183A CN 103312183 A CN103312183 A CN 103312183A CN 2013101964565 A CN2013101964565 A CN 2013101964565A CN 201310196456 A CN201310196456 A CN 201310196456A CN 103312183 A CN103312183 A CN 103312183A
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Abstract
The invention provides a power supply for electric reactor performance testing in a phase-control rectifying circuit and a test method thereof. The power supply comprises a three-phase boosting transformer T1, a three-phase control rectifying bridge SCR (semiconductor control rectifier) and a three-phase converter VSI (voltage source inverter), wherein the output end of the three-phase boosting transformer T1 is provided with three first contacts, and the input end of the three-phase control rectifying bridge SCR is provided with three second contacts corresponding to the three first contacts of the three-phase boosting transformer T1; the output end of the three-phase control rectifying bridge SCR is divided into two paths: the first path output end is connected with one input end of the three-phase converter VSI, and the second path output end is provided with a third contact d1; the other input end of the three-phase converter VSI is provided with a fourth contact d2 corresponding to the third contact d1; and a direct current capacitor C is connected between the two input ends of the three-phase converter VSI of which the output end is connected with the input end of the three-phase boosting transformer T1, so that the actual application occasions of multiple power and electronic circuits can be simulated by one test device in a time-sharing mode.
Description
Technical field
The present invention relates to the technical field that large power reactor carries out performance test, relate in particular to a kind of power supply and method of testing thereof for the performance test of phase control rectifier circuit reactor.
Background technology
At present, China is to test Main Basis " State Standard of the People's Republic of China GB10229-88 reactor " standard and " the State Standard of the People's Republic of China GB1094.2-1996 Power Transformer Temperature Rising " of reactor.This standard defines the standard of common application high-capacity reactor, and for other special reactors in the situation that without the respective country standard, can only partly or entirely adopt this standard.
The test of reactor is divided into the test of voltage, electric current.At present, domestic test to each electric pressure of reactor has had relatively ripe power-supply device, and Xian Transformer Factory, the isallobaric device of Shenyang Transformer Factory manufacturing enterprise can carry out voltage-withstand test to the reactor below the 800KV.Be used for the test of the electric current of power electronic equipment reactor, therefore the present domestic corresponding testing standard that there is no can only partly or entirely adopt the reactor testing standard.
The measuring current that is used for the reactor of power electronic equipment adopts the mode of conversion usually, be about to ripple current, harmonic current through certain conversion relation, be converted to fundamental current (perhaps direct current), again with through the fundamental current (or direct current) of conversion reactor being tested.But the conversion relation generally draws according to engineering experience, with reactor being tested the performance when can not accurately reflect real work through the electric current after the conversion.Therefore, the performance the when performance that tests out of reactor and practical application is usually inconsistent.Be particularly useful in the high power electronic equipment, the difference on the performance shows more obviously.Therefore, traditional testing power supply can not satisfy for the test of the reactor of high power electronic equipment.
In recent years, both at home and abroad to the research of programmable power supply and use more, the research of harmonic current source and use and also become gradually a focus.At present, domestic existing part reactor manufacturing enterprise utilizes programmable power supply that the reactor that is used for power electronic equipment is tested.But these programmable power supply capacity are all less, output current does not reach reactor and tests needed current class, and performance is single, can only be used for exporting a certain (or a class) current waveform, also namely can only be used for testing a kind of (or a class) reactor, this will realize the test to various reactors for reactor manufacturing enterprise, namely will buy various jumbo programmable power supplies, be a greatly burden for enterprise.
Summary of the invention
For defects or deficiency, the invention provides a kind of power supply and method of testing thereof for the performance test of phase control rectifier circuit reactor.
Technical scheme of the present invention is:
A kind of power supply for the performance test of phase control rectifier circuit reactor, comprise three-phase voltage increasing transformer T1, three-phase phase control rectifier bridge SCR, 3-phase power converter VSI, wherein, the output of three-phase voltage increasing transformer T1 is provided with three the first contacts, and the input of three-phase phase control rectifier bridge SCR is provided with second contact corresponding with three the first contacts of three-phase voltage increasing transformer T1; The output of three-phase phase control rectifier bridge SCR is divided into two-way, first via output is connected with the input of 3-phase power converter VSI, the the second road output is provided with the 3rd contact d1, and another input of 3-phase power converter VSI is provided with the four contact d2 corresponding with the 3rd contact d1; Be connected with dc capacitor C between two inputs of described 3-phase power converter VSI, the output of 3-phase power converter VSI is connected with the input of three-phase voltage increasing transformer T1.
Be connected with circuit breaker K1 between described three-phase voltage increasing transformer T1 and the power supply.
Be connected with the first A.C. contactor K1 between the output of described three-phase voltage increasing transformer T1 and the first contact.
Be connected with the second A.C. contactor K2 between the input of the output of described 3-phase power converter VSI and three-phase voltage increasing transformer T1.
A kind of method of testing of the power supply for the performance test of phase control rectifier circuit reactor may further comprise the steps:
1) phase control rectifier AC reactor test circuit:
At first, three interfaces with tested reactor are connected between the first contact and the second contact;
Then, the 3rd contact d1 is connected plugged with the 4th contact d2;
2) phase control rectifier DC side reactor test circuit:
At first, tested reactor is connected between the 3rd contact d1 and the 4th contact d2;
Then, the first contact is connected plugged with the second contact.
The invention provides a kind of power supply of testing for Thyristor Controlled rectification circuit reactor performance, by the output at three-phase voltage increasing transformer T1 three the first contacts are set, the input of three-phase phase control rectifier bridge SCR is provided with second contact corresponding with three the first contacts of three-phase voltage increasing transformer T1, and between the input of three-phase phase control rectifier bridge SCR output and 3-phase power converter VSI, corresponding contact is set, so that the not single power of the present invention can be greatly improved, and can simulate with a cover testing power supply timesharing practical application of multiple Power Electronic Circuit, reproduced the application scenario of each reactor and the current waveform of output real work point.Reactor manufacturing enterprise just can accurately measure the reactor parameter like this, changes the inaccurate present situation of reactor parameter measurement.Can be simultaneously reactor manufacturer and save purchase installation cost and place construction cost.
Description of drawings
Fig. 1 is the circuit diagram of the power supply of testing for phase control rectifier circuit reactor performance provided by the invention;
Fig. 2 is the reactor test circuit figure that is incorporated into the power networks of the power supply tested for phase control rectifier circuit reactor performance;
Fig. 3 is that the reactor performance is tested phase control rectifier DC side reactor test circuit figure in the phase control rectifier circuit provided by the invention;
Fig. 4 is the control chart of the system that the reactor performance is tested in the phase control rectifier circuit provided by the invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is described in detail.
With reference to shown in Figure 1, the invention provides a kind of power supply for the performance test of phase control rectifier circuit reactor, be particularly useful for the power supply that the reactor performance is tested in the Thyristor Controlled rectification circuit, it comprises three-phase voltage increasing transformer T1, three-phase phase control rectifier bridge SCR, the 3-phase power converter VSI that is connected with AC power, and the distributor that is used for connecting tested reactor:
Wherein, be connected with circuit breaker K1 between described three-phase voltage increasing transformer T1 and the power supply, the output of three-phase voltage increasing transformer T1 is provided with three the first contacts, be designated as successively a2, b2, c2, be connected with the first A.C. contactor K1 between the output of three-phase voltage increasing transformer T1 and the first contact, the input of three-phase phase control rectifier bridge SCR is provided with second contact corresponding with three the first contacts of three-phase voltage increasing transformer T1, is designated as a3, b3, c3.
The output of three-phase phase control rectifier bridge SCR is divided into two-way, first via output is connected with the input of 3-phase power converter VSI, the the second road output is provided with the 3rd contact d1, and another input of 3-phase power converter VSI is provided with the four contact d2 corresponding with the 3rd contact d1; Be connected with dc capacitor C between two inputs of described 3-phase power converter VSI, the output of 3-phase power converter VSI is connected with the input of three-phase voltage increasing transformer T1, and is connected with the second A.C. contactor K2 between the input of the output of described 3-phase power converter VSI and three-phase voltage increasing transformer T1.
The method of among the present invention tested reactor performance being tested is:
1) phase control rectifier AC reactor test circuit:
At first, three interfaces with tested reactor are connected between the first contact and the second contact;
Then, the 3rd contact d1 is connected plugged with the 4th contact d2;
Referring to shown in Figure 2, what wherein placed the L1 position is tested reactor.In order to realize this test, at this moment, the three-phase with tested reactor is connected to respectively a2, a3 first; Between b2, b3 and c2, the c3; The 3rd contact d1 meets the 4th contact d2, and then control system is according to predefined pattern, auto-controlled circuit breaker K1, and contactor K2, K3 is closed, finally realizes the as above circuit topology of figure.
Working mechanism: by control phase control rectifier circuit turn-on angle dc voltage is held, utilized grid-connected converter control size of the active current of sending in the electrical network can control the peak-to-peak value of phased ac-side current.Can test like this phase control rectifier AC reactor under the different angles of flow, the operating state when flowing through different rated current.
2) phase control rectifier DC side reactor test circuit:
At first, tested reactor is connected between the 3rd contact d1 and the 4th contact d2;
Then, the first contact is connected plugged with the second contact.
Referring to shown in Figure 3, wherein, the just tested reactor that place the L2 position in order to realize this test, at this moment, is connected to d1 with tested reactor first, between the d2; A2 meets a3, and b2 meets b3, and c2 meets c3, and then control system is according to predefined pattern, auto-controlled circuit breaker K1, and contactor K2, K3 is closed, finally realizes the as above circuit topology of figure.
Working mechanism: the angle of flow by control phase control rectifier circuit is held dc voltage, utilize grid-connected converter control to inject the mean value of the first-harmonic active component control phase control rectifier DC side electric current of power network current, control negative phase-sequence five primary current components are controlled six secondary undulations of phase control rectifier DC side electric current.
3) control strategy of system
Control system is by host computer, and processor and sample circuit and drive circuit consist of, and referring to shown in Figure 4, given electric current and sample rate current is exported sawtooth waveforms after treatment with after PLL (Phase Locked Loop, the phase-locked loop) stack; Given voltage and sampled voltage are exported square wave after treatment with after the PLL stack.
Need to prove, can there be different connected modes a plurality of contacts among the present invention, thereby realize the practical application of the multiple Power Electronic Circuit of simulation that simulation is different, reproduce the application scenario of each reactor and the current waveform of output real work point, be not limited only to mode cited among the embodiment.
Beneficial effect of the present invention is:
This reactor testing apparatus can go out respectively electric current under each topology ability is as follows:
The current peak maximum of phased AC reactor can go out to 350A;
The current average of phased DC side reactor can go out to 250A and six pulse waves and can smoothedly regulate;
Such electric current can satisfy the simulate live test to reactor under each application scenario substantially, can hold more exactly the performance of reactor in actual condition.And this testing power supply can switch in two kinds of circuit topologies easily, adds touch screen human-computer interface so that the user operates more like a cork.
And every experiment of this cover system has all realized being incorporated into the power networks, and can realize active power filtering to the net side quality of power supply, so not only can greatly reduce the consumption of the energy, and can not pollute electrical network.
Claims (5)
1. power supply that is used for the performance test of phase control rectifier circuit reactor, it is characterized in that: comprise three-phase voltage increasing transformer T1, three-phase phase control rectifier bridge SCR, 3-phase power converter VSI, wherein, the output of three-phase voltage increasing transformer T1 is provided with three the first contacts, and the input of three-phase phase control rectifier bridge SCR is provided with second contact corresponding with three the first contacts of three-phase voltage increasing transformer T1; The output of three-phase phase control rectifier bridge SCR is divided into two-way, first via output is connected with the input of 3-phase power converter VSI, the the second road output is provided with the 3rd contact d1, and another input of 3-phase power converter VSI is provided with the four contact d2 corresponding with the 3rd contact d1; Be connected with dc capacitor C between two inputs of described 3-phase power converter VSI, the output of 3-phase power converter VSI is connected with the input of three-phase voltage increasing transformer T1.
2. the power supply for the performance test of phase control rectifier circuit reactor according to claim 1 is characterized in that: be connected with circuit breaker K1 between described three-phase voltage increasing transformer T1 and the power supply.
3. the power supply for the performance test of phase control rectifier circuit reactor according to claim 1 is characterized in that: be connected with the first A.C. contactor K1 between the output of described three-phase voltage increasing transformer T1 and the first contact.
4. the power supply for the performance test of phase control rectifier circuit reactor according to claim 1 is characterized in that: be connected with the second A.C. contactor K2 between the input of the output of described 3-phase power converter VSI and three-phase voltage increasing transformer T1.
5. the method for testing based on the power supply for the performance test of phase control rectifier circuit reactor claimed in claim 1 is characterized in that, may further comprise the steps:
1) phase control rectifier AC reactor test circuit:
At first, three interfaces with tested reactor are connected between the first contact and the second contact;
Then, the 3rd contact d1 is connected plugged with the 4th contact d2;
2) phase control rectifier DC side reactor test circuit:
At first, tested reactor is connected between the 3rd contact d1 and the 4th contact d2;
Then, the first contact is connected plugged with the second contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310196456.5A CN103312183B (en) | 2013-05-23 | 2013-05-23 | For power supply and the method for testing thereof of reactor performance test in phase control rectifier circuit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310196456.5A CN103312183B (en) | 2013-05-23 | 2013-05-23 | For power supply and the method for testing thereof of reactor performance test in phase control rectifier circuit |
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| CN103312183A true CN103312183A (en) | 2013-09-18 |
| CN103312183B CN103312183B (en) | 2015-08-26 |
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| CN201310196456.5A Expired - Fee Related CN103312183B (en) | 2013-05-23 | 2013-05-23 | For power supply and the method for testing thereof of reactor performance test in phase control rectifier circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104767391A (en) * | 2015-04-21 | 2015-07-08 | 贾晓宏 | Controllable frequency converter |
| WO2018006517A1 (en) * | 2016-07-07 | 2018-01-11 | 中车大连机车车辆有限公司 | Method for detecting instantaneous current in intermediate dc link of ac-dc-ac circuit and locomotive |
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| JP2006112833A (en) * | 2004-10-12 | 2006-04-27 | Soken Denki Kk | Inductance measuring instrument |
| CN202008508U (en) * | 2011-01-19 | 2011-10-12 | 李国勇 | Serial connection reactor tester |
| CN102508072A (en) * | 2011-11-03 | 2012-06-20 | 天津电气传动设计研究所 | High-power three-level frequency converter temperature rise and loss testing method employing active front end |
| CN102692577A (en) * | 2012-06-25 | 2012-09-26 | 镇江天力变压器有限公司 | Test system for large-power high-frequency transformer |
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2013
- 2013-05-23 CN CN201310196456.5A patent/CN103312183B/en not_active Expired - Fee Related
Patent Citations (4)
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| JP2006112833A (en) * | 2004-10-12 | 2006-04-27 | Soken Denki Kk | Inductance measuring instrument |
| CN202008508U (en) * | 2011-01-19 | 2011-10-12 | 李国勇 | Serial connection reactor tester |
| CN102508072A (en) * | 2011-11-03 | 2012-06-20 | 天津电气传动设计研究所 | High-power three-level frequency converter temperature rise and loss testing method employing active front end |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104767391A (en) * | 2015-04-21 | 2015-07-08 | 贾晓宏 | Controllable frequency converter |
| WO2018006517A1 (en) * | 2016-07-07 | 2018-01-11 | 中车大连机车车辆有限公司 | Method for detecting instantaneous current in intermediate dc link of ac-dc-ac circuit and locomotive |
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| CN103312183B (en) | 2015-08-26 |
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