In this paper, we introduce a non-linear torque control for an interior permanent-magnet synchronous motor (IPMSM). The nonlinear control is based on a Control Lyapunov Function (CLF) technique. The proposed stabilizi...In this paper, we introduce a non-linear torque control for an interior permanent-magnet synchronous motor (IPMSM). The nonlinear control is based on a Control Lyapunov Function (CLF) technique. The proposed stabilizing feedback law for the IPMSM drive is a damping control method and is shown to be globally asymptotically stable. The CLF method takes the system nonlinearities into account in the control system design stage. Such nonlinearities are due to the cross coupling between the q and the q currents in addition to the system parameters like the inductances and the flux linkages. The complete IPMSM drive incorporating the proposed CLF has been successfully simulated in a plant model for both motor and inverter. The performance of the proposed drive is investigated in simulation at different operating conditions. It is found that the proposed control technique provides a good torque control performance for the IPMSM drive ensuring the global stability. In later work, we are planning to investigate other phenomena such as magnetic saturation, nonlinear loads, mechanical friction and flexibilities.展开更多
电力拖动运动控制系统是自动化专业的核心课程之一。高性能的直流调速系统多采用双闭环串级控制的结构:外环为转速反馈,实现转速调节;内环为电流反馈,加快瞬态过程。由于原理的复杂性,历来是教学的难点。Matlab是一种强大的仿真工具,已...电力拖动运动控制系统是自动化专业的核心课程之一。高性能的直流调速系统多采用双闭环串级控制的结构:外环为转速反馈,实现转速调节;内环为电流反馈,加快瞬态过程。由于原理的复杂性,历来是教学的难点。Matlab是一种强大的仿真工具,已广泛应用于高校教学活动。以双闭环直流调速为例,将Matlab仿真技术引入运动控制实验教学。利用Sim Power System模块搭建系统模型;通过仿真,对比分析系统在突加给定和突增负载时的动态响应特性;验证了双闭环结构相对于开环、单闭环系统的优势。与传统实物实验相结合,更有利于学生加深对相应知识点的理解和掌握。展开更多
文摘In this paper, we introduce a non-linear torque control for an interior permanent-magnet synchronous motor (IPMSM). The nonlinear control is based on a Control Lyapunov Function (CLF) technique. The proposed stabilizing feedback law for the IPMSM drive is a damping control method and is shown to be globally asymptotically stable. The CLF method takes the system nonlinearities into account in the control system design stage. Such nonlinearities are due to the cross coupling between the q and the q currents in addition to the system parameters like the inductances and the flux linkages. The complete IPMSM drive incorporating the proposed CLF has been successfully simulated in a plant model for both motor and inverter. The performance of the proposed drive is investigated in simulation at different operating conditions. It is found that the proposed control technique provides a good torque control performance for the IPMSM drive ensuring the global stability. In later work, we are planning to investigate other phenomena such as magnetic saturation, nonlinear loads, mechanical friction and flexibilities.
文摘电力拖动运动控制系统是自动化专业的核心课程之一。高性能的直流调速系统多采用双闭环串级控制的结构:外环为转速反馈,实现转速调节;内环为电流反馈,加快瞬态过程。由于原理的复杂性,历来是教学的难点。Matlab是一种强大的仿真工具,已广泛应用于高校教学活动。以双闭环直流调速为例,将Matlab仿真技术引入运动控制实验教学。利用Sim Power System模块搭建系统模型;通过仿真,对比分析系统在突加给定和突增负载时的动态响应特性;验证了双闭环结构相对于开环、单闭环系统的优势。与传统实物实验相结合,更有利于学生加深对相应知识点的理解和掌握。