Developing and Simulation Research of the Control Model and Control Strategy of Static Frequency Converter

A control model and control strategy of static frequency converter (SFC) for pumped storage power plant unit is presented. Control strategy of static start-up and its mathematical model is discussed in detail. And based on the 42 poles of synchronous machine p.u. parameters, simulation parameters of the machine are carried out. Then the control system simulation model of SFC is developed. Based on Panjiakou synchronous motor parameters, the simulation of static start-up control system for pumped storage power plant unit is developed. At last, Simulation results show that pulse commutation, nature commutation and transient commutation procedure of static start-up are realized. Then it is proved that the method presented in the paper is a practicable control strategy for static start-up control to pumped storage power plant.