Decoupled current droop control method of shunt chopper in microgrid
A control method and inverter technology, applied in the direction of single-network parallel feeding arrangement, etc., can solve problems such as poor practical feasibility, noise interference, and no improvement in dynamic response, and achieve good system stability, fast dynamic response, The effect of maintaining redundancy
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[0044] The present invention will be further described in detail below in conjunction with specific embodiments, which are explanations of the present invention rather than limitations.
[0045] refer to figure 1 with figure 2 , the present invention proposes a decoupling current droop control method for parallel inverters in a microgrid, aiming to solve the problems of current sharing effect, dynamic response and system stability of traditional droop control inverters.
[0046] Its specific implementation steps are as follows:
[0047] 1) In an AC microgrid, there are N parallel inverters, and each inverter is controlled as a voltage source according to the same current droop control strategy.
[0048] 2) Each inverter collects the phase information of the voltage at both ends of the capacitor through the voltage phase-locked loop, obtains the direct-axis component and the quadrature-axis component of the voltage vector, and generates a reference value of the voltage frequ...
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