Small-signal Modeling and Analysis of Grid-connected Permanent-magnet Synchronous Wind Generation System
Power system stability problem has always been the focus of attention.The various signals are likely to varying degrees of impact on power system.The inverter sources such wind generation connected in power system increase the probability of disturbance and uncertainty.The traditional simulation methods based on electromagnetic transient cannot solve the problems of inverter control strategy.The small-signal stability of single-machine infinitebus system of permanent-magnet synchronous wind generation was studied in this paper.The small-signal model of permanent-magnet synchronous wind generation system was built,including wind turbine,permanent-magnet synchronous wind generator,controller for AC/DC inverter,L filter,controller for DC/AC inverter,DC-link capacitor.Its small-signal stability was analyzed by means of eigenvalues analysis.The simulation model of photovoltaic power generation system based on PSCAD/EMTDC was built.From the simulations,it comes to the conclusion that the smallsignal model and analysis are right.
NETL
NSTL
万方数据
维普
