Adaptive control strategy of inertia damping based on virtual synchronous generator
In recent years,virtual synchronous generator(VSG)technology has been more widely used because of its ability to simulate the external characteristics of synchronous generators.When the power system is disturbed,the output active power and frequency of the system will overshoot and the adjustment time will become longer.To solve these problems,VSG mathematical model is built in this paper,and the effects of rotational inertia and damping coefficient on the active power and angular frequency of the system are studied.By studying the power angle change curve and angular frequency variation curve of VSG under disturbance,and improving the conventional VSG control technology,an improved inertia damping adaptive control strategy is proposed.Finally,the feasibility and superiority of the system are verified by MATLAB/SIMULINK simulation software in grid-connected mode.
VSGrotational inertiadamping coefficientgrid-connected inverteradaptive control strategy
万方数据
维普
