Summary for resonance suppression technology of renewable energy power generation

Resonance is a common problem of power quality in the renewable energy power generation system, and its suppression strategy is closely related to the safe and stable operation of the grid connected with the renewable energy. In this paper, the generation mechanism and related influencing factors of resonance are analysed at first by analysing the specific resonance problem of photovoltaic power station and wind farm. Next, the resonance suppression measures and functions are introduced, about the photovoltaic and wind farms. From the angle of economic, simple and efficient, the three ways of resonance damping for single machine-passive damping inhibition, inhibition of active damping, a mixture of active and passive damping suppression method, and the two aspects for multi turbine active, passive damping inhibitions are compared with each other to conclude their respective advantages and disadvantages.