CN105958506A - Subway traction power supply system based on power fusion and control method - Google Patents

Abstract

The invention discloses a subway traction power supply system based on power fusion. The system comprises a power fusion device, wherein the power fusion device comprises a control unit, two single-phase transformers, two full-bridge circuits and an intermediate capacitor, the two full-bridge circuits form a back-to-back structure and commonly share the intermediate capacitor, AC output ends of the two full-bridge circuits are respectively connected with secondary edges of the two single-phase transformers, one ends of primary sides of the single-phase transformers are respectively connected with two phases of a three-phase power grid, the other ends of the primary sides of the two single-phase transformers are connected with a third phase of the three-phase power grid, and the control unit is connected with the two full-bridge circuits and is used for controlling output currents of the two full-bridge circuits for realizing normal power supply and energy feedback, and power balance of the three-phase power grid. The power supply system has advantages of simple structure and complete functions. The invention further relates to a control method, the output currents of the full-bridge circuits are adjusted to realize different work modes of a power fusion device, and the method further has advantages of simple operation and easy realization.

Description

A kind of metro traction power system based on power circulation type and control method

Technical field

The invention mainly relates to technical field of rail traffic, refer in particular to a kind of metro traction power system based on power circulation type and control Method processed.

Background technology

Subway power supply needs provide Traction networks DC voltage, need feedback locomotive brake energy, need to solve three phase network power The power quality problems such as factor is low, harmonic wave.Using diode rectification device to realize subway power supply at present, simple in construction, cost are relatively Low, but DC voltage is uncontrollable, fluctuation range is big, and energy can only one-way flow, the excess traffic of train regenerative braking AC network can not be fed back to, cause the waste of energy.

Summary of the invention

The technical problem to be solved in the present invention is that the technical problem existed for prior art, and the present invention provides a kind of structure Simply, the metro traction power system based on power circulation type of complete function, and provide accordingly a kind of easy and simple to handle, be prone to real The control method of existing metro traction power system based on power circulation type.

For solving above-mentioned technical problem, the technical scheme that the present invention proposes is:

A kind of metro traction power system based on power circulation type, it is characterised in that include that power circulates device, described power Circulation device includes control unit, two single-phase transformers, two full-bridge circuits and an intermediate capacitance, two full-bridge circuit shapes Become back to back structure form and shared intermediate capacitance, the ac output end of two full-bridge circuits respectively with the pair of two single-phase transformers Limit is connected, and the two ends of described intermediate capacitance are connected with subway traction power supply net, and the one end on two former limits of single-phase transformer is respectively with three In phase electrical network biphase be connected, the other end on two former limits of single-phase transformer is then connected with the third phase of three phase network, control unit It is connected with described full-bridge circuit, for controlling the output electric current of described full-bridge circuit to realize normal power supply, energy feedback and three The power-balance of phase electrical network.

Preferably, two described full-bridge circuits are all for the H-bridge circuit being made up of four IGBT module.

Preferably, between described power circulation device and subway traction power supply net, it is provided with switch, when the switch is closed, institute Stating power circulation device to switch between four kinds of mode of operations, described four kinds of mode of operations include normal power supply pattern, energy feedback Pattern, normal power supply add governance model and energy feedback adds governance model；When described switching off, described power is circulated Device is then in governance model, wherein governance model include that fundamental positive sequence is idle, first-harmonic negative phase-sequence and harmonic wave control one or more Combination.

The invention also discloses the control method of a kind of metro traction power system based on power circulation type, it is characterised in that bag Include following steps:

(1) three phase network target compensation electric current I is obtained_C1 ^*And I_C2 ^*, simultaneously by U_dcWith U_{dc_ref}It is poor Δ U_dcIt is processed into base Ripple positive sequence real component I_2f1pAnd I_2f1p* α, as required electric current and power demands electric current or energy feedback electric current being lost, wherein U_dcFor the voltage at intermediate capacitance two ends, U_{dc_ref}Voltage is maintained for target；The then work order electric current I of two full-bridge circuits_C1、I_C2 By target compensation electric current I_C1 ^*、I_C2 ^*With fundamental positive sequence real component I_2f1p、I_2f1p* α is formed by stacking accordingly, such as following formula:

$\left\{\begin{array}{c}{I}_{C1}={I_{C1}}^{*}+I_{2f1p}\\ I_{C2}={I_{C1}}^{*}+I_{2f1p}*\mathrm{\α}\end{array}\right.---\left(1\right);$

(2) by target compensation electric current I_C1 ^*And I_C2 ^*Compensate to three phase network, now three phase network electric current I_A、I_B、I_CIt is equal to Threephase load electric current I_a、I_b、I_bWith compensate electric current sum, such as following formula:

$\left\{\begin{array}{c}{I}_A=I_a+I_{C1}\\ I_B=I_b+(-I_{C1}-I_{C2})\\ I_C=I_c+I_{C2}\end{array}\right.---\left(2\right);$

Wherein

In formula (3), I_f1p、I_f1p*α²、I_f1p* α is A, B, C phase fundamental positive sequence real component；I_f1q、I_f1q*α²、 I_f1q* α is A, B, C phase fundamental positive sequence idle component；I_f2、I_f2*α、I_f2*α²Divide for A, B, C phase first-harmonic negative phase-sequence Amount；I_ah、I_bh、I_chBeing respectively threephase load current harmonics component, α is complex operator, α=e^j120°, wherein 1+ α+α²=0；

By full-bridge circuit to three phase network target compensation electric current I_C1 ^*And I_C2 ^*Be adjusted, with realize normal power supply, energy feedback, Carry out during normal power supply when electric energy improvement, energy feedback, carrying out electric energy improvement or individually electric energy improvement；Wherein electric energy administers bag Include that fundamental positive sequence is idle, first-harmonic negative phase-sequence and one or more combinations of harmonic wave control.

Preferably, in step (2), when being in normal power supply or energy feedback, described I_C1 ^*And I_C2 ^*It is zero, described I_C1 And I_C2Such as following formula:

$\left\{\begin{array}{c}{I}_{C1}=I_{2f1p}\\ I_{C2}=I_{2f1p}*\mathrm{\α}\end{array}\right.---\left(4\right)$

Work as I_C1When netting pressure same phase with A phase, energy flows to subway traction power supply net from three phase network through power circulation device；

Work as I_C1When netting pressure antiphase with A phase, energy flows to three phase network from subway traction power supply net through power circulation device；

Preferably, in step (2), I is worked as_C1 ^*And I_C2 ^*During for following formula, it is possible to realize that fundamental positive sequence is idle, first-harmonic negative phase-sequence and Harmonic wave control,

$\left\{\begin{array}{c}{I_{C1}}^{*}=-I_{f2}-I_{f1q}-I_{ah}\\ {I_{C2}}^{*}=-{I_{f2}}^{*}{\mathrm{\α}}^2-I_{f1q}*\mathrm{\α}-I_{ch}\end{array}\right.---\left(5\right);$

Work as I_C1 ^*And I_C2 ^*During for following formula, it is possible to realize first-harmonic negative sequence management,

$\left\{\begin{array}{c}{I_{C1}}^{*}=-I_{f2}\\ {I_{C2}}^{*}=-I_{f2}*{\mathrm{\α}}^2\end{array}\right.---\left(7\right);$

Work as I_C1 ^*And I_C2 ^*During for following formula, it is possible to realize first-harmonic negative phase-sequence and the idle improvement of fundamental positive sequence,

$\left\{\begin{array}{c}{I}_{C1}*=-I_{f2}-I_{f1q}\\ I_{C2}*=-I_{f2}*{\mathrm{\α}}^2-I_{f1q}*\mathrm{\α}\end{array}\right.---\left(8\right);$

Work as I_C1 ^*And I_C2 ^*During for following formula, it is possible to realize first-harmonic negative phase-sequence and harmonic wave control,

$\left\{\begin{array}{c}{I}_{C1}*=-I_{f2}-I_{ah}\\ I_{C2}*=-I_{f2}*{\mathrm{\α}}^2-I_{ch}\end{array}\right.---\left(9\right);$

Work as I_C1 ^*And I_C2 ^*During for following formula, it is possible to realize idle improvement,

$\left\{\begin{array}{c}{I}_{C1}=-I_{f1q}\\ I_{C2}=-I_{f1q}*\mathrm{\α}\end{array}\right.---\left(10\right);$

Work as I_C1 ^*And I_C2 ^*During for following formula, it is possible to realize harmonic wave control,

$\left\{\begin{array}{c}{I}_{C1}=-I_{ah}\\ I_{C2}=-I_{ch}\end{array}\right.---\left(11\right);$

Work as I_C1 ^*And I_C2 ^*During for following formula, it is possible to realize that fundamental positive sequence is idle and harmonic wave control,

$\left\{\begin{array}{c}{I}_{C1}=-I_{f1q}-I_{ah}\\ I_{C2}=-I_{f1q}*\mathrm{\α}-I_{ch}\end{array}\right.---\left(12\right).$

Compared with prior art, it is an advantage of the current invention that:

The metro traction power system based on power circulation type of the present invention not only has normal power supply function, and can carry out energy Amount feedback, the electric energy that the most also can realize three phase supply electrical network administers, complete function and being easily achieved, and power circulation device Using single-phase transformer and full-bridge circuit to constitute, its simple in construction, cost are relatively low.The ground based on power circulation type of the present invention The control method of railway traction electric power system has as above advantage described in system equally, and simple to operate, complete function and being prone to Realize.

Accompanying drawing explanation

Fig. 1 is the structural representation of the present invention.

Fig. 2 is that work order electric current when power circulation device busy pattern 1 and mode of operation 2 obtains block diagram；

Fig. 3 is energy Flow block diagram during normal power supply in the present invention.

Fig. 4 is energy Flow block diagram during energy feedback in the present invention.

Fig. 5 is that work order electric current during this power circulation device busy pattern 3,4,5 obtains block diagram；

Fig. 6 is energy Flow block diagram during mode of operation 5.

Detailed description of the invention

Below in conjunction with Figure of description and specific embodiment, the invention will be further described.

As shown in Figures 1 to 6, the metro traction power system based on power circulation type of the present embodiment, including power circulation dress Putting, wherein one end of power circulation device is connected with outside three phase network, and the other end is then connected with subway traction power supply net；Power Circulation device includes that control unit, two single-phase transformers (T1 and T2 as in Fig. 1), two full-bridge circuits are (by four IGBT The H-bridge circuit of module composition, H1 and H2) and intermediate capacitance C, the one end on two former limits of single-phase transformer is respectively with three Phase electrical network biphase be connected, the other end on two former limits of single-phase transformer be then connected with the third phase of three phase network (as it is shown in figure 1, The AB that the two ends, former limit of T1 connect in three-phase respectively is biphase, and the BC that the two ends, former limit of T2 connect in three-phase respectively is biphase), two lists The secondary of phase transformer input with two full-bridge circuits respectively is connected, and the outfan of two full-bridge circuits is connected, intermediate capacitance And its two ends in parallel with the outfan of two full-bridge circuits are connected to the ground the positive negative feeder of railway traction power supply network；Single-phase transformer T1 With T2 for three-phase power grid voltage being down to full-bridge circuit H1 and H2 running voltage, it is achieved full-bridge circuit and the connection of electrical network； Two full-bridge circuits are used for realizing energy Flow, and intermediate capacitance is used for providing energy channel；Control unit is used in conjunction mutually with full-bridge circuit In being controlled the output of two full-bridge circuits, the output i.e. carrying out intermediate capacitance is controlled, with realize externally fed electrical network with The flowing of energy between subway traction power supply net, including normal power supply and energy feedback, outside additionally can also realizing individually or simultaneously The power-balance of portion's three phase network, i.e. realizes negative phase-sequence, idle or harmonic wave control.

The metro traction power system based on power circulation type of the present invention not only has normal power supply function, and can carry out energy Amount feedback, the electric energy that the most also can realize three phase supply electrical network administers, complete function and being easily achieved, and reaches load-side and net side Dual improvement, and power circulation device uses single-phase transformer and full-bridge circuit to constitute, and its simple in construction, cost are relatively low.

The present invention further correspondingly discloses the control method of a kind of metro traction power system based on power circulation type, as it is shown in figure 1, In the present embodiment, three-phase electricity current on line side is I_A、I_B、I_C, threephase load side electric current is I_a、I_b、I_b.Because three-phase system System does not contains zero-sequence component, so being decomposed into by load current, fundamental positive sequence is meritorious, fundamental positive sequence is idle, first-harmonic negative phase-sequence, harmonic wave Form.As shown in formula (3):

$\left\{\begin{array}{c}{I}_a=I_{f1p}+I_{f1q}+I_{f2}+I_{ah}\\ I_b=I_{f1p}*{\mathrm{\α}}^2+I_{f1q}*{\mathrm{\α}}^2+I_{f2}*\mathrm{\α}+I_{bh}\\ I_c=I_{f1p}*\mathrm{\α}+I_{f1q}*\mathrm{\α}+I_{f2}*{\mathrm{\α}}^2+I_{ch}\end{array}\right.---\left(3\right)$

In formula (3), I_f1p、I_f1p*α²、I_f1p* α is A, B, C phase fundamental positive sequence real component；I_f1q、I_f1q*α²、 I_f1q* α is A, B, C phase fundamental positive sequence idle component；I_f2、I_f2*α、I_f2*α²Divide for A, B, C phase first-harmonic negative phase-sequence Amount；I_ah、I_bh、I_chBeing respectively threephase load current harmonics component, α is complex operator, α=e^j120°, wherein 1+ α+α²=0；

Before not compensating, three phase network electric current I_A、I_B、I_CEqual to threephase load electric current I_a、I_b、I_b, add electricity after compensating Net electric current is load current and compensation electric current sum, such as following formula:

$\left\{\begin{array}{c}{I}_A=I_a+I_{C1}\\ I_B=I_b+(-I_{C1}-I_{C2})\\ I_C=I_c+I_{C2}\end{array}\right.---\left(2\right)$

When QF closes, power circulation device can be operated under four kinds of patterns:

Mode of operation 1: pure powering mode；

Mode of operation 2: pure energy feedback pattern；

Mode of operation 3: power supply and electric energy governance model；

Mode of operation 4: energy feedback and electric energy governance model；

When QF disconnects, power circulation device has a kind of pattern, and mode of operation 5: electric energy governance model, wherein electric energy administers mould Formula includes that fundamental positive sequence is idle, one or more combinations in first-harmonic negative phase-sequence and harmonic wave control.

Wherein power circulation device work order electric current I when mode of operation 1 and mode of operation 2_C1And I_C2Obtain block diagram such as Fig. 2 Shown in.U in Fig. 2_dcFor DC capacitor C the two poles of the earth U in Fig. 1_dc+With U_dc-DC voltage between-, U_{dc_ref}Maintain for target Voltage, U_dcWith U_refIt is poor Δ U_dcAfter, through the process of control unit, it is changing into fundamental positive sequence real component I_2f1pWith I_2f1p* α, the most respectively power circulation device work order electric current I_C1And I_C2, it is that power circulation device damages that this component represents meaning Consume required electric current and power demands electric current or energy feedback electric current, such as following formula:

$\left\{\begin{array}{c}{I}_{C1}=I_{2f1p}\\ I_{C2}=I_{2f1p}*\mathrm{\α}\end{array}\right.---\left(4\right)$

When power circulation device busy pattern 1, I_C1Netting pressure same phase with A phase, energy Flow is as it is shown on figure 3, from three-phase Electrical network flows to metro traction net through power circulation device；

When power circulation device busy pattern 2, I_C1Net pressure antiphase with A phase, energy Flow as shown in Figure 4, from subway Traction networks flows to three phase network through power circulation device.

When mode of operation 3, mode of operation 4 and mode of operation 5, power circulation device work order electric current I_C1And I_C2Obtain Block diagram is as shown in Figure 5.Fig. 5 includes a target current decomposition operation module, obtains three phase network target compensation electric current I_C1 ^* And I_C2 ^*；Control unit is treated by U_dcWith U_{dc_ref}It is poor Δ U_dcIt is processed into fundamental positive sequence real component I_2f1pWith I_2f1p* α, power circulation device work order electric current I_C1、I_C2By target compensation electric current I_C1 ^*、I_C2 ^*Meritorious with fundamental positive sequence point Amount I_2f1p、I_2f1p* α is formed by stacking accordingly.Such as following formula:

$\left\{\begin{array}{c}{I}_{C1}={I_{C1}}^{*}+I_{2f1p}\\ I_{C2}={I_{C1}}^{*}+I_{2f1p}*\mathrm{\α}\end{array}\right.---\left(1\right)$

As target compensation electric current I_C1 ^*And I_C2 ^*Can obtain shown in following formula 5 through target current decomposition operation decomposition module:

$\left\{\begin{array}{c}{I_{C1}}^{*}=-I_{f2}-I_{f1q}-I_{ah}\\ {I_{C2}}^{*}=-I_{f2}*{\mathrm{\α}}^2-I_{f1q}*\mathrm{\α}-I_{ch}\end{array}\right.---\left(5\right)$

(4), (5) are substituted into and can obtain three phase network electric current after power circulation device works in (2).As follows:

$\left\{\begin{array}{c}{I}_A=I_{f1p}+I_{2f1p}\\ I_B=I_{f1p}*{\mathrm{\α}}^2+I_{2f1p}*{\mathrm{\α}}^2\\ I_C=I_{f1p}*\mathrm{\α}+I_{2f1p}*\mathrm{\α}\end{array}\right.---\left(6\right)$

From formula (6), power circulation device is operated in pattern 3 or 4 or 5, and comprising only fundamental positive sequence in three phase network has Merit, satisfactory for result.

In like manner, if target compensation electric current I_C1 ^*And I_C2 ^*Can through target current decomposition operation decomposition module become formula (7), formula (8), Formula (9), formula (10), formula (11) or formula (12), now power circulation device is operated in pattern 3 or 4 or 5 Time middle, by one or both in tool negative phase-sequence, idle, harmonic compensation function.

Work as I_C1 ^*And I_C2 ^*During for following formula, it is possible to realize first-harmonic negative sequence management,

$\left\{\begin{array}{c}{I_{C1}}^{*}=-I_{f2}\\ {I_{C2}}^{*}=-I_{f2}*{\mathrm{\α}}^2\end{array}\right.---\left(7\right);$

Work as I_C1 ^*And I_C2 ^*During for following formula, it is possible to realize first-harmonic negative phase-sequence and the idle improvement of fundamental positive sequence,

$\left\{\begin{array}{c}{I}_{C1}*=-I_{f2}-I_{f1q}\\ I_{C2}*=-I_{f2}*{\mathrm{\α}}^2-I_{f1q}*\mathrm{\α}\end{array}\right.---\left(8\right);$

Work as I_C1 ^*And I_C2 ^*During for following formula, it is possible to realize first-harmonic negative phase-sequence and harmonic wave control,

$\left\{\begin{array}{c}{I}_{C1}*=-I_{f2}-I_{ah}\\ I_{C2}*=-I_{f2}*{\mathrm{\α}}^2-I_{ch}\end{array}\right.---\left(9\right);$

Work as I_C1 ^*And I_C2 ^*During for following formula, it is possible to realize idle improvement,

$\left\{\begin{array}{c}{I}_{C1}=-I_{f1q}\\ I_{C2}=-I_{f1q}*\mathrm{\α}\end{array}\right.---\left(10\right);$

Work as I_C1 ^*And I_C2 ^*During for following formula, it is possible to realize harmonic wave control,

$\{\begin{array}{c}{I}_{C1}=-I_{ah}\\ I_{C2}=-I_{ch}\end{array}---\left(11\right);$

Work as I_C1 ^*And I_C2 ^*During for following formula, it is possible to realize that fundamental positive sequence is idle and harmonic wave control,

$\left\{\begin{array}{c}{I}_{C1}=-I_{f1q}-I_{ah}\\ I_{C2}=-I_{f1q}*\mathrm{\α}-I_{ch}\end{array}\right.---\left(12\right).$

When in power circulation device busy pattern 3, I in formula (6)_2f1pPressure same phase is netted, energy Flow such as Fig. 3 with A phase Shown in, flow to metro traction net from three phase network through power circulation device；

When power circulation device busy pattern 4, I in formula (6)_2f1pPressure antiphase is netted, energy Flow such as Fig. 4 with A phase Shown in, flow to three phase network from metro traction net through device.

When in power circulation device busy pattern 5, I in formula (6)_2f1pPressure same phase is netted, energy Flow such as Fig. 5 with A phase Shown in, flow to metro traction net from three phase network through device.

Although the present invention is disclosed above with preferred embodiment, but it is not limited to the present invention.Any skill being familiar with this area Art personnel, in the case of without departing from technical solution of the present invention scope, may utilize the technology contents of the disclosure above to skill of the present invention Art scheme makes many possible variations and modification, or is revised as the Equivalent embodiments of equivalent variations.Therefore, every without departing from this The content of inventive technique scheme, according to the technology of the present invention essence to any simple modification made for any of the above embodiments, equivalent variations and Modify, all should fall in the range of technical solution of the present invention is protected.

Claims (6)

1. a metro traction power system based on power circulation type, it is characterized in that, device is circulated including power, described power circulation device includes control unit, two single-phase transformers, two full-bridge circuits and an intermediate capacitance, two full-bridge circuits form back to back structure form and shared intermediate capacitance, the ac output end of two full-bridge circuits secondary with two single-phase transformers respectively is connected, the two ends of described intermediate capacitance are connected with subway traction power supply net, the one end on two former limits of single-phase transformer is connected with biphase in three phase network respectively, the other end on two former limits of single-phase transformer is then connected with the third phase of three phase network, control unit is connected with described full-bridge circuit, for controlling the output electric current of described full-bridge circuit to realize normal power supply, energy feedback and the power-balance of three phase network.

Metro traction power system based on power circulation type the most according to claim 1, it is characterised in that two described full-bridge circuits are all for the H-bridge circuit being made up of four IGBT module.

Metro traction power system based on power circulation type the most according to claim 1 and 2, it is characterized in that, it is provided with switch between described power circulation device and subway traction power supply net, when the switch is closed, described power circulation device switches between four kinds of mode of operations, and described four kinds of mode of operations include that normal power supply pattern, energy feedback pattern, normal power supply add governance model and energy feedback adds governance model；When described switching off, described power circulation device is then in governance model, wherein governance model include that fundamental positive sequence is idle, first-harmonic negative phase-sequence and one or more combinations of harmonic wave control.

4. the control method of a metro traction power system based on power circulation type, it is characterised in that comprise the following steps:

(1) three phase network target compensation electric current I is obtained_C1 ^*And I_C2 ^*, simultaneously by U_dcWith U_{dc_ref}It is poor Δ U_dcIt is processed into fundamental positive sequence real component I_2f1pAnd I_2f1p* α, as required electric current and power demands electric current or energy feedback electric current, wherein U are lost_dcFor the voltage at intermediate capacitance two ends, U_{dc_ref}Voltage is maintained for target；The then work order electric current I of two full-bridge circuits_C1、I_C2By target compensation electric current I_C1 ^*、I_C2 ^*With fundamental positive sequence real component I_2f1p、I_2f1p* α is formed by stacking accordingly, such as following formula:

(2) by target compensation electric current I_C1 ^*And I_C2 ^*Compensate to three phase network, now three phase network electric current I_A、I_B、I_CEqual to threephase load electric current I_a、I_b、I_bWith compensate electric current sum, such as following formula:

Wherein

In formula (3), I_f1p、I_f1p*α²、I_f1p* α is A, B, C phase fundamental positive sequence real component；I_f1q、I_f1q*α²、I_f1q* α is A, B, C phase fundamental positive sequence idle component；I_f2、I_f2*α、I_f2*α²For A, B, C phase first-harmonic negative sequence component；I_ah、I_bh、I_chBeing respectively threephase load current harmonics component, α is complex operator, α=e^{j120 °}, wherein 1+ α+α²=0；

By full-bridge circuit to three phase network target compensation electric current I_C1 ^*And I_C2 ^*It is adjusted, carries out during to realize normal power supply, energy feedback, normal power supply when electric energy improvement, energy feedback, carrying out electric energy improvement or individually electric energy improvement；Wherein electric energy administer include that fundamental positive sequence is idle, first-harmonic negative phase-sequence and one or more combinations of harmonic wave control.

The control method of metro traction power system based on power circulation type the most according to claim 4, it is characterised in that

In step (2), when being in normal power supply or energy feedback, described I_C1 ^*And I_C2 ^*It is zero, described I_C1And I_C2Such as following formula:

Work as I_C1When netting pressure same phase with A phase, energy flows to subway traction power supply net from three phase network through power circulation device；

Work as I_C1When netting pressure antiphase with A phase, energy flows to three phase network from subway traction power supply net through power circulation device.

The control method of metro traction power system based on power circulation type the most according to claim 5, it is characterised in that in step (2), work as I_C1 ^*And I_C2 ^*During for following formula, it is possible to realize that fundamental positive sequence is idle, first-harmonic negative phase-sequence and harmonic wave control,

Work as I_C1 ^*And I_C2 ^*During for following formula, it is possible to realize first-harmonic negative sequence management,

Work as I_C1 ^*And I_C2 ^*During for following formula, it is possible to realize first-harmonic negative phase-sequence and the idle improvement of fundamental positive sequence,

Work as I_C1 ^*And I_C2 ^*During for following formula, it is possible to realize first-harmonic negative phase-sequence and harmonic wave control,

Work as I_C1 ^*And I_C2 ^*During for following formula, it is possible to realize idle improvement,

Work as I_C1 ^*And I_C2 ^*During for following formula, it is possible to realize harmonic wave control,

Work as I_C1 ^*And I_C2 ^*During for following formula, it is possible to realize that fundamental positive sequence is idle and harmonic wave control,