稳 定 边 界 及 多 目 标 约 束 下 自 同 步 电 压 源 双 馈 风 电 机 组 参 数 整 定

The self-synchronous voltage source doubly-fed wind turbines adopt the control method of“inertia transmission on the rotor side-inertia synchronization on the grid side”，which has the ability of autonomously synchronous grid-connection and inertia response. There is currently a lack of research and analysis on the grid-connected stability of this control method and optimal parameter design with multi-objective constraint. In view of this, a state-space model considering the dynamics of the grid side converter and the rotor side converter for the self-synchronous voltage source doubly-fed wind power system is constructed. Under different power grid intensities, the influence law of the inertia transfer loop and the control parameter for the stabilizing loop on the small-signal stability in the middle and high frequency bands is analyzed. A multi-objective optimization model of control parameters considering different operation points and dynamic performances of the unit is given, and a global optimization of the control parameters is performed by using the particle swarm optimization algorithm. The simulation model of a 2 MW doubly-fed wind turbine is constructed in PSCAD/EMTDC, and the simulation results verify the correctness of the theoretical analysis and parameter design.