| This Paper:Browse 1679 Download 777 |
码上扫一扫！ |
|
| LuFANG,AnLUO,XianyongXU,HouhuiFANG,FujunMA,WenWANG |
|
|
| (College of Electrical and Information Engineering, Hunan University;Hunan Electric Power Company Test and Research Institute, Hunan Electric Power Company) |
|
| 摘要: |
|
| 关键词: |
| DOI： |
| Received:December 11, 2009Revised:July 22, 2010 |
| 基金项目:This work was supported by the National Basic Research Program of China (973 Program) (No. 2009CB219706), and the Scientific Research Plan of Hunan Provincial Science and Technology Department of China (Nos. 2009FJ3036, 2011FJ3035). |
|
| Voltage control for static var compensator using novel optimal nonlinear PI |
| Lu FANG,An LUO,Xianyong XU,Houhui FANG,Fujun MA,Wen WANG |
| (College of Electrical and Information Engineering, Hunan University;Hunan Electric Power Company Test and Research Institute, Hunan Electric Power Company) |
| Abstract: |
| Static var compensators (SVCs) are used for voltage and reactive power control in power systems. In this paper, we will consider the structure of SVCs that mainly consists of Y -connection of mechanically-switched capacitor (MSC) and delta connection of thyrister-controlled reactor (TCR). First, the control model of SVC was established in this paper. Then, a novel optimal nonlinear voltage controller for SVCs is proposed. The proposed SVC voltage controller consists of a nonlinear function and a conventional PI controller. The improved simplex method (SPX) is presented to adjust and optimize the parameters of the nonlinear PI controller in real-time, and to make transient state response procedure of SVC optimum. The integration of time multiplied absolute error (ITAE) is adopted as the optimized objective function of SPX. Simulation and engineering application results show that the proposed voltage control method is able to track reference voltage value of SVC immediately. It also demonstrates that the whole SVC control system can synthetically compensate reactive power. |
| Key words: Static var compensator (SVC) Nonlinear PI Improved optimal simplex method Voltage controller Control model of SVC |
