摘要
为了提高双馈电机变流器控制响应特性,提出了基于滑模变结构控制和右逆系统理论的双馈电机网侧变流器的复合解耦控制方法。针对直流电压,采用基于极点配置方法设计滑模变结构控制器,运用右逆系统线性解耦理论设计变流器电流内环控制器,使控制系统具有对负载扰动的鲁棒性,以获得良好的动静态特性;实现了交流侧的电流波形趋于正弦化及功率因数的单位化等控制目标。仿真结果表明提出的控制方案可行。
To improve the response characteristics of DC link capacitor voltage of doubly-fed motor inverter＇s,an advanced composite decoupling control method based on the slide mode variable structure control and right inverse system theory is proposed. Depending on the topologic structure of PWM inverter,the mathematical model in two-phase synchronous rotating coordinate is set up and rewritten into its state equation. DC voltage sliding mode controller is designed using pole placement method. By the use of right inverse system with linear decoupling theory,the converter＇s current loop controller is designed. In this way,the control system has perfect static and dynamic performances and robustness to load disturbance. At the same time,AC current synchronizes with the AC voltage,and power factor is unitized. At last,the simulation using MATLAB software for the control algorithm according to the overall schematic of the control system is carried out and the simulation results indicates that the control scheme is feasible.
出处
《北京信息科技大学学报（自然科学版）》
2015年第5期6-11,共6页
Journal of Beijing Information Science and Technology University
基金
国家自然科学基金资助项目(51077004)
关键词
变流器
右逆系统
滑模变结构控制
极点配置
converter
right-inverge systems
slide mode variable structure control
pole placement
