Reactive power compensation and stability analysis of fixed speed wind generators using STATCOM integrated with energy storage devices

摘要

In this paper, the interaction of the wind farm, energy storage, reactive power compensation and the power system network is analysed. This article discusses the performance of a STATCOM/superconducting magnetic energy storage topology to provide both the active and reactive power, which can significantly decrease the voltage and power fluctuations of grid-connected fixed speed wind generators. One major problem in wind generator output power smoothing is the setting of the reference output power. A simple moving average technique is used to generate the reference output power which corresponds to the energy storage capacity and thus the energy capacity of an energy storage system unit can be small. Moreover, a simulation model has been tested in MATLAB, and the simulation results are compared.