Inertial Coordinated Control Strategy of PMSG-Based Wind Energy Generation System

As wind energy is gradually infiltrated in modern power systems, the problem of reduced inertia of the power system has received widespread attention. The wind turbine (WT) is connected to the power net via a power electronic inverter, and rapid response capability of power electronics causes a reduction in the inertial response. Decoupling control between electromechanical systems also prevents wind turbines from responding to system frequencies in a timely manner. In response to this problem, this paper analyzes the different ways of inertial support for permanent magnet synchronous generator (PMSG) wind energy generation system. Based on enumerating and comparing various approaches of providing inertial support to the system, selecting appropriate strategies to achieve the combination. This grants the WT to provide inertial support during operation. The rationality of the strategy is demonstrated by Matlab/Simulink simulation.