Research On Control Strategy Optimization Of Current Source Converter Based STATCOM

With the upgrade of electric power industry,the technology and installations using in electric system are also updating.Static Synchronous Compensator(STATCOM)is a new generation of installations in reactive power compensation.Because of its rapid dynamic response and excellent compensation performance,STATCOM is a kind of leading-edge products in recent years around the world.On the aspect of control,STATCOM is a multiple input multiple output system,including lots of electrical quantities in real-time data collecting,data analysis,algorithm analysis and pulse modulation.The question about how to improve STATCOM system control and how to make a better STATCOM is attracting more and more people to research.This paper focuses on CSC-STATCOM and tries to find a new way to optimize feedback linearization control.The main research work of this paper is as follows:Firstly,the basic topology structure and operation principle of CSC-STATCOM are introduced,and the feedback linearization control is analysed in detail.And then,put forward control strategy optimization based feedback linearization control.The control strategy optimization is in the way of feedback linearization,when solving matrix K,using intelligent algorithm to find the best answer instead of man-made pole placement.So it can optimize matrix K and control strategy,and finally improve the performance of STATCOM.Lastly,the Matlab/Simulink simulations of CSC-STATCOM system are established,then I take the results of intelligent algorithm into the system and compare with the them.Meanwhile the experiment platforms are set up,and I finish the experiment.The results of simulations and experiment show that the control strategy optimization in this paper is helpful to make STATCOM have a rapid dynamic response and excellent compensation performance.