Inverse-System Control Approach for Variable-Speed Variable-Pitch Wind Generator
This paper presents an inverse-system control approach for Variable-Speed Variable-Pitch Wind Generator Systems (VSVP-WGS) in order to optimize the wind energy conversion in a high wind speed region.The controller synthesizes the ideas of two-time-scale approach and inverse-system method.Based on two-time-scale analysis, the model of VSVP-WGS can be reduced to a first-order one with non-affine and nonlinear characteristics.With inverse-system method, the nonlinear model is converted into a pseudo-linear one and then can be stabilized simply by linear system approach.The performance of the inverse-system controller (ISC), which is confirmed through theory analyses and simulations, show that, compared with a proportional-integral controller (PIC), it makes VSVP-WGS provide a wider operating region and generate smoother output power.Compared with other nonlinear controllers, ISC is simpler and can be more easily transplanted to other kinds of WGS.
wind generator system pitch control non-affine system control and inverse-system control
Geng Yang Hua Geng
Department of Automation,Tsinghua University,Beijing 100084,P.R.China
国内会议
西安
英文
52-60
2007-05-24（万方平台首次上网日期，不代表论文的发表时间）