根据虚拟惯量控制的物理本质,提出一种简化的直驱永磁风电机组虚拟惯量控制实验系统的设计实现方法.该方法主要基于电力系统一次调频的数学模型,通过运算器的方式对等值电网的惯性响应特性和调频特性进行模拟,使得模拟风电机组在直接并入大电网的条件下即可进行虚拟惯量控制方法的实验验证.该方法避免了构建等值模拟电网的需要,从而进一步降低实验系统的实现成本.通过仿真和实验,验证简化实验方法的有效性和可行性.“,”Based on the physical nature of virtual inertial control (VIC),a simplified experimental system design method of directly-driven permanent-magnet synchronous generator with VIC was proposed.The simplified method uses a calculator to simulate the inertial and frequency response characteristics of the equivalent power grid based on the primary frequency control model of power systems,making it is possible to do VIC experiments while the simulative wind generators are connected to large power grid.By eliminating the need of building an actual equivalent power grid,the proposed method lowers the implementation cost of the experimental system.The validity and feasibility of the proposed method are verified through simulations and experiments.