感应电机滑模变结构控制系统的半实物仿真

滑模变结构控制非常适用于高阶非线性系统,但如何快速而有效地验证此类先进控制算法是开发人员面临的主要问题。基于此,针对大功率高性能调速控制系统,提出了快速验证的半实物仿真方案。首先,设计出基于滑模变结构控制的感应电机电流内环控制策略,在分析半实物仿真机理的基础上,搭建了滑模变结构控制系统的实时仿真模型,实现了系统硬件在环仿真,并分别对PI控制和滑模变结构控制的电流控制效果进行了对比实验。结果表明,滑模变结构控制策略在动态性能和抗负载扰动性能方面具有明显优势,半实物方案对先进控制算法的有效验证和应用具有重要意义。

Hardware in loop simulation of induction motor based on sliding mode control

Sliding mode control is suitable for high-order nonlinear system, however, it is still a challenge to present the rapid and effective verification in application of such advanced control algorithms.For this reason, a fast-verification hardware-in-the-loop simulation scheme is proposed in this paper for high-power high-performance speed control system.Firstly, sliding mode control algorithm is deduced for high-performance induction motor speed control.Based on the analysis of hardware-in-loop simulation mechanism, a real-time simulation model for induction motor is designed and built.The hardware-in-loop simulation is implemented using PI control and sliding mode control algorithm respectively, the superiority of sliding mode control strategy and the effectiveness of the real-time platform are verified.