基于虚拟惯量控制的新型电力系统功率差前馈振荡抑制方法OA北大核心CSTPCD

To solve the problem of low inertia and weak damping in the new power system,virtual synchronous generator technology has attracted much attention.However,while the virtual synchronous generator provides inertia and damping for the system,it also causes the system to generate active oscillation when affected by disturbance,and it is easy to produce steady-state errors.Therefore,this paper proposes a power difference feedforward oscillation suppression method for a new power system based on virtual inertial control to optimize the control of a virtual synchronous generator.This effectively reduces the influence of active power and frequency generated under disturbance and improves the dynamic stability of the system.Meanwhile,the active closed-loop small-signal models of conventional control,differential feedforward control,and power difference feedforward control are built respectively,and the relevant parameter design methods are given.The effectiveness and superiority of the proposed strategy in solving dynamic oscillation and steady-state error problems are verified through simulation.