Quanchun Yan1,2,*, Chao Yuan1, Wen Gu1, Yanan Liu1, Yiming Tang1
Energy Engineering, Vol.120, No.1, pp. 49-68, 2023, DOI:10.32604/ee.2022.018555
Abstract In order to solve the problems of rotor overvoltage, overcurrent and DC side voltage rise caused by grid voltage
drops, a coordinated control strategy based on symmetrical and asymmetrical low voltage ride through of rotor
side converter of the doubly-fed generator is proposed. When the power grid voltage drops symmetrically, the
generator approximate equation under steady-state conditions is no longer applicable. Considering the dynamic
process of stator current excitation, according to the change of stator flux and the depth of voltage drop, the system
can dynamically provide reactive power support for parallel nodes and suppress the rise of DC side… More >
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