RSC control-considered analytic method of double-fed wind generator three-phase short-circuit current
A technology of three-phase short circuit and analysis method, which is applied in the field of fault analysis of wind power generation system, and can solve problems such as complex transient characteristics
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[0148] Embodiment 1: as Figure 1-6 As shown, an analytical method for the three-phase short-circuit current of a doubly-fed fan considering RSC control includes the following steps:
[0149] Step 1: According to the equivalent circuit diagram of the doubly-fed induction wind turbine ( figure 1 ) to write the stator and rotor voltage equations, write the stator and rotor flux equations according to the self-inductance flux linkage and mutual inductance flux linkage of the double-fed induction wind turbine stator and rotor, and write the rotor voltage equations according to the RSC control principle, listed above The written equations are all in the dq synchronous rotating coordinate system;
[0150] Step 2: According to the stator voltage equation written in step 1 and the principle of flux conservation, obtain the analytical formula of the stator flux linkage after the fault;
[0151] Step 3: According to the stator and rotor flux linkage equations listed in step 1, the equ...
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