This paper deals with performance analysis and implementation of a three phase inverter fed induction motor (IM) drive system. The closed loop control scheme of the drive utilizes the Digital Phase Locked Loop (DPLL)....This paper deals with performance analysis and implementation of a three phase inverter fed induction motor (IM) drive system. The closed loop control scheme of the drive utilizes the Digital Phase Locked Loop (DPLL). The DPLL is safely implemented all around the well known integrated circuit DPLL 4046. An ex-perimental verification is carried out on one kw scalar controlled IM system drives for a wide range of speeds and loads appliance. This presents a simple and high performance solution for industrial applications.展开更多
为解决无刷直流电机(brushless DC motor,BLDC)驱动器测试成本高、周期长、风险大的问题,本文提出一种基于线性自抗扰控制(linear active disturbance rejection control,LADRC)的电机模拟器设计方案。该方法首先通过电力电子变换器构...为解决无刷直流电机(brushless DC motor,BLDC)驱动器测试成本高、周期长、风险大的问题,本文提出一种基于线性自抗扰控制(linear active disturbance rejection control,LADRC)的电机模拟器设计方案。该方法首先通过电力电子变换器构建电机模拟器硬件,并在传统电流单闭环控制基础上加入转速外环,以模拟电机的端口电气特性。针对负载突变、参数摄动等内外扰动导致的控制性能下降问题,引入LADRC策略代替传统PI控制,其核心是利用线性扩张状态观测器(linear extended state observer,LESO)实时估计并补偿系统“总扰动”,从而增强系统的鲁棒性。在RT-BOX半实物仿真平台的对比实验结果表明,与传统PI控制相比,所提LADRC策略在扰动工况下具有更强的抗扰动能力、更快的动态响应与更高的控制稳定性。本研究证实了所提电机模拟器方案的可行性与LADRC策略的优越性,为开发高性价比、可靠性的驱动器测试平台提供了有效途径。展开更多
文摘This paper deals with performance analysis and implementation of a three phase inverter fed induction motor (IM) drive system. The closed loop control scheme of the drive utilizes the Digital Phase Locked Loop (DPLL). The DPLL is safely implemented all around the well known integrated circuit DPLL 4046. An ex-perimental verification is carried out on one kw scalar controlled IM system drives for a wide range of speeds and loads appliance. This presents a simple and high performance solution for industrial applications.
文摘为解决无刷直流电机(brushless DC motor,BLDC)驱动器测试成本高、周期长、风险大的问题,本文提出一种基于线性自抗扰控制(linear active disturbance rejection control,LADRC)的电机模拟器设计方案。该方法首先通过电力电子变换器构建电机模拟器硬件,并在传统电流单闭环控制基础上加入转速外环,以模拟电机的端口电气特性。针对负载突变、参数摄动等内外扰动导致的控制性能下降问题,引入LADRC策略代替传统PI控制,其核心是利用线性扩张状态观测器(linear extended state observer,LESO)实时估计并补偿系统“总扰动”,从而增强系统的鲁棒性。在RT-BOX半实物仿真平台的对比实验结果表明,与传统PI控制相比,所提LADRC策略在扰动工况下具有更强的抗扰动能力、更快的动态响应与更高的控制稳定性。本研究证实了所提电机模拟器方案的可行性与LADRC策略的优越性,为开发高性价比、可靠性的驱动器测试平台提供了有效途径。
