控制器饱和对并网逆变器失稳行为的影响

For the power-electronics-based power system, a kind of stable operation with constant-amplitude oscillation was often witnessed in the reported instability incidents. In some cases, the root is proved to be negative damping by the theoretical analysis based on the linear model and the impedance-based stability theory. However, the negative damped resonances should diverge. This leaves a void why ...