CN102323545B - Power loop test method for steady-state operation test of flexible direct current power transmission MMC (Modular Multilevel Converter) valve - Google Patents
Power loop test method for steady-state operation test of flexible direct current power transmission MMC (Modular Multilevel Converter) valve Download PDFInfo
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- CN102323545B CN102323545B CN201110244693.5A CN201110244693A CN102323545B CN 102323545 B CN102323545 B CN 102323545B CN 201110244693 A CN201110244693 A CN 201110244693A CN 102323545 B CN102323545 B CN 102323545B
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- 230000000295 complement effect Effects 0.000 claims description 18
- 238000010276 construction Methods 0.000 claims description 6
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/483—Converters with outputs that each can have more than two voltages levels
- H02M7/4835—Converters with outputs that each can have more than two voltages levels comprising two or more cells, each including a switchable capacitor, the capacitors having a nominal charge voltage which corresponds to a given fraction of the input voltage, and the capacitors being selectively connected in series to determine the instantaneous output voltage
Abstract
The invention relates to a power loop test method for a steady-state operation test of a flexible direct current power transmission MMC (Modular Multilevel Converter) valve. The method comprises the following steps of: setting voltage amplitudes V1 and V2 of valve banks 1 and 2 and phase difference delta of the two voltage amplitudes and setting output voltage of an energy replenishing power source E2; closing an isolating switch K1 and charging a sub-module capacitor by a charging power source E1; cutting off K1 to exit E1 to finish pre-charging after the voltage of the sub-module capacitor reaches a set value; closing an isolating switch K2 and switching to the energy replenishing power source E2; meanwhile, sending out trigger pulses of IGBTs (Insulated Gate Bipolar Translator) of all sub-modules of the two valve banks according to a modulation strategy and getting a circuit in a steady-state running state; establishing voltage stress required by test at the two ends of the valve banks 1 and 2, performing energy exchange on sub-module capacitors and load reactors of two valve components and generating current stress required by the test in a loop; and cutting off K2 and exiting E2, latching the trigger pulses of the IGBTs in the sub-modules and finishing the test. The test method is simple and flexible; and a test parameter adjustment method is simple and convenient.
Description
Technical field
The invention belongs to electric system and field of power electronics, specifically relate to a kind of power ring test method of flexible DC power transmission MMC valve Tests at Steady State.
Background technology
Along with the progressively application of flexible DC power transmission (VSC-HVDC) technology in electric system, the reliability of its core component---high-power insulated gate bipolar transistor (IGBT) valve becomes one of key factor of power system security.Because VSC-HVDC device generally has high voltage, heavy current, jumbo feature, cause in experimental enviroment, being difficult to build the full live road identical with actual operating mode and test.Therefore, how in experimental enviroment, to build equivalent hookup, carry out the test suitable with actual operating mode intensity and become the key of dealing with problems.
VSC-HVDC based on modularization multi-level converter (MMC) is to utilize IGBT valve to carry out a kind of new technology of direct current transportation.Submodule (SM) is the minimum power unit that forms MMC, and the half-bridge that it is comprised of IGBT (or H bridge) forms with Parallel-connected Capacitor.Several submodules MMC valve module in series, it can be proportional the electrical specification of embodiment MMC valve, be the basic electric unit that carries out MMC valve Tests at Steady State, its electrical structure is as Fig. 1 (a) with (b).
MMC valve Tests at Steady State is in order to investigate MMC valve tolerance to critical stress such as maximum current, voltage and temperature under long-term actual operating mode, to verify the correctness of MMC valve design.
Summary of the invention
The invention provides a kind of power ring test method of flexible DC power transmission MMC valve Tests at Steady State, this test method realizes and makes tested valve module tolerance with the suitable steady-state voltage of actual condition, electric current and hot strength, and, this test method is simple, flexible, test parameters regulative mode is easy, can meet the requirement of MMC valve Tests at Steady State.
The object of the invention is to adopt following technical proposals to realize:
The power ring test method of flexible DC power transmission MMC valve Tests at Steady State, its improvements are,
The device that described power ring test method is used is the power ring test unit of MMC valve Tests at Steady State, and described device comprises two valve modules 1 and 2, charge power supply E1, complementary energy power supply E2, load reactance device L, charging current limiter resistance R c and disconnector K1 and K2;
Described valve module 1 and 2 is respectively containing n and m submodule, and n>=m; Described submodule comprises half-bridge structure in parallel and submodule capacitor; Or described submodule comprises H bridge construction in parallel and submodule capacitor; Described submodule capacitor is C
sM1nor C
sM2m;
Described half-bridge structure and H bridge construction include K switch
1nor K
2m, resistance R
1nor R
2m, thyristor T
1nor T
2m, IGBT device T
1n1and T
1n2or IGBT device T
2m1and T
2m2and diode D
2n1and D
2n2or diode D
2m1and D
2m2;
Described method comprises the steps:
(1) set the voltage magnitude V of described valve module 1 and valve module 2
1, V
2and the two phase differential δ, and set the output voltage of described complementary energy power supply E2;
(2) closed described disconnector K1, makes charge power supply E1 to described submodule capacitor C
sM1nor C
sM2mcharging;
(3) as described submodule capacitor C
sM1nor C
sM2mvoltage reaches after setting value, disconnects disconnector K1 charge power supply E1 is exited, and precharge is complete;
(4) closed described disconnector K2, drops into described complementary energy power supply E2; Meanwhile, send the trigger pulse of two all submodule IGBT of valve module according to certain modulation strategy, circuit enters steady-state operation state; The required voltage stress of test is set up at described valve module 1 and valve module 2 two ends, and two valve modules carry out energy exchange on submodule capacitor and load reactance device L, produces the required current stress of test in loop;
(5) disconnect described disconnector K2, exit complementary energy power supply E2, the trigger pulse of IGBT in locking submodule then, off-test.
A kind of preferred technical scheme provided by the invention is: ground connection after the low-voltage output of the low-voltage output of described valve module 1 and valve module 2 is directly connected; The high-voltage output end of described valve module 1 is connected by described load reactance device L with valve module 2 high-voltage output ends.
The provided by the invention second preferred technical scheme is: one end of described charge power supply E1 is connected with described charging current limiter resistance R c one end; The other end of described charge power supply E1 and valve module 1 and ground connection after 2 low-voltage output is connected; The described charging current limiter resistance R c other end is connected with one end of disconnector K1; The other end of described disconnector K1 is connected with described load reactance device L;
One end of described complementary energy power supply E2 is connected with described disconnector K2 one end; The other end of described complementary energy power supply E2 and valve module 1 and ground connection after 2 low-voltage output is connected; The other end of described disconnector K2 is connected with valve module 1.
The provided by the invention the 3rd preferred technical scheme is: described certain modulation strategy is the sine ladder wave modulation system that switching frequency is lower.
The provided by the invention the 4th preferred technical scheme is: described IGBT device T
1n1anti-paralleled diode D
1n1form IGBT module 1; Described IGBT device T
1n2anti-paralleled diode D
1n2 form IGBT module 2; Described IGBT module 1 and 2 series connection of IGBT module, form IGBT module 1 and IGBT module 2 series arms;
Described IGBT module 2, thyristor T
1nand K switch
1nin parallel successively; Described resistance R
1nin parallel with IGBT module 1 and IGBT module 2 series arms.
The provided by the invention the 5th preferred technical scheme is: described IGBT device T
2m1anti-paralleled diode D
2m1form IGBT module 3; Described IGBT device T
2m22anti-paralleled diode D
2mform IGBT module 4; Described IGBT module 3 and 4 series connection of IGBT module, form IGBT module 3 and IGBT module 4 series arms;
Described IGBT module 4, thyristor T
2mand K switch
2min parallel successively; Described resistance R
2min parallel with IGBT module 3 and IGBT module 4 series arms.
The provided by the invention the 6th preferred technical scheme is: described valve module 1 is auxiliary valve; Described valve module 2 is test product valve.
Compared with prior art, the beneficial effect that the present invention reaches is:
1, the test unit that test method provided by the invention is used produces loop current by the energy exchange between valve module submodule capacitor and load reactance device, complementary energy power supply is respectively used to set up submodule operating voltage and relative less active loss in supplementary circuitry operational process with charge power supply, greatly reduces the requirement of hookup to power supply capacity.
2, test method provided by the invention is by specific sine ladder wave modulation system and control method, not only can produce the voltage stress with Practical Project equivalence, and compare and greatly reduce switching frequency with traditional sinusoidal pulse width modulation (SPWM) mode, reduced switching loss.
3, test method provided by the invention, by regulating amplitude and the phase differential of two valve module both end voltage, can obtain the current stress of accurate AC and DC stack, and not only regulative mode is flexible, simple, and has higher equivalence.
4, test method provided by the invention meets the requirement of MMC valve Tests at Steady State, and steady-state current stress, voltage stress and the hot strength etc. suitable with actual operating mode can be provided.
Accompanying drawing explanation
Fig. 1 is the basic electrical structure diagram of MMC valve Tests at Steady State;
Fig. 2 is power ring type MMC valve Tests at Steady State circuit theory diagrams provided by the invention;
Fig. 3 is power ring test method process flow diagram provided by the invention;
Fig. 4 is MMC valve module Tests at Steady State voltage waveform view provided by the invention;
Fig. 5 is MMC valve module Tests at Steady State current waveform schematic diagram provided by the invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
As shown in Figure 2, whole hookup is comprised of valve module 1 and 2, charge power supply E1, complementary energy power supply E2, load reactance device L, charging current limiter resistance R c and disconnector K1 and K2 power ring type MMC valve Tests at Steady State circuit theory diagrams provided by the invention;
Ground connection after the low-voltage output of the low-voltage output of valve module 1 and valve module 2 is directly connected, both high-voltage output ends are connected by described load reactance device L; Wherein, valve module 1 is auxiliary valve; Valve module 2 is test product valve.
IGBT device T
1n1anti-paralleled diode D
1n1form IGBT module 1; Described IGBT device T
1n2anti-paralleled diode D
1n2 form IGBT module 2; Described IGBT module 1 and 2 series connection of IGBT module, form IGBT module 1 and IGBT module 2 series arms; Described IGBT module 2; Thyristor T
1nand K switch
1nin parallel successively; Described resistance R
1nin parallel with IGBT module 1 and IGBT module 2 series arms.
IGBT device T
2m1anti-paralleled diode D
2m1form IGBT module 3; Described IGBT device T
2m2anti-paralleled diode D
2m2form IGBT module 4; Described IGBT module 3 and 4 series connection of IGBT module, form IGBT module 3 and IGBT module 4 series arms; Described IGBT module 4, thyristor T
2mand K switch
2min parallel successively; Described resistance R
2min parallel with IGBT module 3 and IGBT module 4 series arms.
One end of charge power supply E1 is connected with charging current limiter resistance R c one end; The low pressure of the other end of charge power supply E1 and valve module 1 and valve module 2 ground connection after defeated being connected; The charging current limiter resistance R c other end is connected with one end of disconnector K1; The other end of disconnector K1 is connected with load reactance device L;
One end of complementary energy power supply E2 is connected with disconnector K2 one end; The low pressure of the other end of complementary energy power supply E2 and valve module 1 and valve module 2 ground connection after defeated being connected; The other end of disconnector K2 is connected with valve module 1; Complementary energy power supply E2 is connected in parallel on the ground connection submodule capacitor C of described valve module 1
sM1ntwo ends.
Charge power supply E1 is for all submodule capacitors precharge to two valve modules before circuit steady-state operation, and after charging, E1 exits circuit.Complementary energy power supply E2 is parallel to the ground connection submodule capacitor C of valve module 1
sM1ntwo ends, the active loss during for supplementary circuitry steady-state operation.Rc is charging current limiter resistance, for limiting the electric current in charging stage loop.
As shown in Figure 3, concrete steps are as follows for test method flow process corresponding to this hookup:
(1) set the voltage magnitude V of valve module 1 and valve module 2
1, V
2and the two phase differential δ, and set the output voltage of E2;
(2) closed K1, makes E1 charge to all submodule capacitors;
(3) group module capacitors voltage reaches after setting value, disconnects K1 E1 is exited, and precharge is complete;
(4) closed K2, drops into E2; Meanwhile, send the trigger pulse of two all submodule IGBT of valve module according to certain modulation strategy, circuit enters steady-state operation state.The required voltage stress of test is set up at valve module 1 and valve module 2 two ends, on two valve module submodule capacitors and load reactance device L, carries out energy exchange, produces the required current stress of test in loop;
(5) disconnect K2, exit E2, locking IGBT trigger pulse then, off-test.
Voltage stress and current stress are much Practical Projects that depends on, different engineering stresses vary in size, and the parameter in step (1) is adjustable, need each on-test all will set.So, test required voltage stress and current stress because of actual condition difference.
During circuit steady-state operation, the IGBT in valve module 1 and valve module 2 is operated under the sine ladder wave modulation system that certain switching frequency is lower, and two ends are by the voltage waveform u obtaining respectively as shown in Figure 4
1and u
2, the two AC compounent amplitude is respectively V
1and V
2, direct current biasing is
therefore, two valve modules can be equivalent to the alternating-current voltage source V as shown in Fig. 2 dotted line frame
1(V
2) and direct voltage source
series connection composite power source.By regulating two valve modules amplitude and the phase differential of sinusoidal reference ripple separately, the power that can change in loop distributes, and then changes the AC compounent I of loop current i
acwith DC component I
dcsize, loop current be valve module electric current waveform as shown in Figure 5.
Finally should be noted that: above embodiment is only in order to illustrate the application's technical scheme but not restriction to its protection domain; although the application is had been described in detail with reference to above-described embodiment; those of ordinary skill in the field are to be understood that: those skilled in the art still can carry out all changes, revise or be equal to replacement to the embodiment of application after reading the application; these change, revise or be equal to replacement, within the claim scope that it all awaits the reply in its application.
Claims (5)
1. the power ring test method of flexible DC power transmission MMC valve Tests at Steady State, is characterized in that,
The device that described power ring test method is used is the power ring test unit of MMC valve Tests at Steady State, and described device comprises two valve modules 1 and 2, charge power supply E1, complementary energy power supply E2, load reactance device L, charging current limiter resistance R c and disconnector K1 and K2; Ground connection after the low-voltage output of the low-voltage output of described valve module 1 and valve module 2 is directly connected; The high-voltage output end of described valve module 1 is connected by described load reactance device L with valve module 2 high-voltage output ends; One end of described charge power supply E1 is connected with described charging current limiter resistance R c one end; The other end of described charge power supply E1 and valve module 1 and ground connection after 2 low-voltage output is connected; The described charging current limiter resistance R c other end is connected with one end of disconnector K1; The other end of described disconnector K1 is connected with the input end of described load reactance device L;
One end of described complementary energy power supply E2 is connected with described disconnector K2 one end; The other end of described complementary energy power supply E2 and valve module 1 and ground connection after 2 low-voltage output is connected; The other end of described disconnector K2 is connected with valve module 1;
Described valve module 1 and 2 is respectively containing n and m submodule, and n>=m; Described submodule comprises half-bridge structure in parallel and submodule capacitor; Or described submodule comprises H bridge construction in parallel and submodule capacitor; Described submodule capacitor is C
sM1nand C
sM2m;
Described half-bridge structure and H bridge construction include K switch
1nand K
2m, resistance R
1nand R
2m, thyristor T
1nand T
2m, IGBT device T
1n1and T
1n2with IGBT device T
2m1and T
2m2and diode D
2n1and D
2n2with diode D
2m1and D
2m2;
Described method comprises the steps:
(1) set the voltage magnitude V of described valve module 1 and valve module 2
1, V
2and the two phase differential δ, and set the output voltage of described complementary energy power supply E2;
(2) closed described disconnector K1, makes charge power supply E1 to described submodule capacitor C
sM1nand C
sM2mcharging;
(3) as described submodule capacitor C
sM1nand C
sM2mvoltage reaches after setting value, disconnects disconnector K1 charge power supply E1 is exited, and precharge is complete;
(4) closed described disconnector K2, drops into described complementary energy power supply E2; Meanwhile, send the trigger pulse of two all submodule IGBT of valve module according to modulation strategy, circuit enters steady-state operation state; The required voltage stress of test is set up at described valve module 1 and valve module 2 two ends, and two valve modules carry out energy exchange on submodule capacitor and load reactance device L, produces the required current stress of test in loop;
(5) disconnect described disconnector K2, exit complementary energy power supply E2, the trigger pulse of IGBT in locking submodule then, off-test.
2. power ring test method as claimed in claim 1, is characterized in that, described modulation strategy is the sine ladder wave modulation system that switching frequency is lower.
3. power ring test method as claimed in claim 1, is characterized in that, described IGBT device T
1n1anti-paralleled diode D
1n1form IGBT module 1; Described IGBT device T
1n2anti-paralleled diode D
1n2form IGBT module 2; Described IGBT module 1 and 2 series connection of IGBT module, form IGBT module 1 and IGBT module 2 series arms;
Described IGBT module 2, thyristor T
1nand K switch
1nin parallel successively; Described resistance R
1nin parallel with IGBT module 1 and IGBT module 2 series arms.
4. power ring test method as claimed in claim 1, is characterized in that, described IGBT device T
2m1anti-paralleled diode D
2m1form IGBT module 3; Described IGBT device T
2m22anti-paralleled diode D
2mform IGBT module 4; Described IGBT module 3 and 4 series connection of IGBT module, form IGBT module 3 and IGBT module 4 series arms;
Described IGBT module 4, thyristor T
2mand K switch
2min parallel successively; Described resistance R
2min parallel with IGBT module 3 and IGBT module 4 series arms.
5. power ring test method as claimed in claim 1, is characterized in that, described valve module 1 is auxiliary valve; Described valve module 2 is test product valve.
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|---|---|---|---|
| CN201110244693.5A CN102323545B (en) | 2011-08-25 | 2011-08-25 | Power loop test method for steady-state operation test of flexible direct current power transmission MMC (Modular Multilevel Converter) valve |
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|---|---|---|---|
| CN201110244693.5A CN102323545B (en) | 2011-08-25 | 2011-08-25 | Power loop test method for steady-state operation test of flexible direct current power transmission MMC (Modular Multilevel Converter) valve |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060282239A1 (en) * | 2005-06-08 | 2006-12-14 | Chang Gung University | Method of setting-up steady state model of VSC-based multi-terminal HVDC transmission system |
| CN201130221Y (en) * | 2007-09-20 | 2008-10-08 | 中国电力科学研究院 | DC flow-exchanging valve low voltage parameter service test apparatus |
| CN101187690B (en) * | 2007-11-28 | 2010-06-02 | 中国电力科学研究院 | DC converter valve restoration period transient forward voltage test method |
| CN201892732U (en) * | 2010-12-01 | 2011-07-06 | 中国电力科学研究院 | Aperiodic triggering test device of direct-current converting valve |
| CN102023242B (en) * | 2010-12-27 | 2013-05-22 | 许继集团有限公司 | Current source for test of high voltage direct current transmission commutation valve and synthesis test method of current source |
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