PI controller relay auto-tuning using delay and phase margin in PMSM drives  

作　　者：Wang Lina Xiao Kun Liliana de Lillo Lee Empringham Pat Wheeler 

机构地区：[1]School of Automation Science and Electrical Engineering, Beihang University [2]Material and Supervision Department, State Grid DC Project Construction Company Limited [3]Department of Electrical and Electronic Engineering, University of Nottingham

出　　处：《Chinese Journal of Aeronautics》2014年第6期1527-1537,共11页中国航空学报（英文版）

基　　金：part funding for this work from the Clean Sky JTI – Systems for Green Operations ITD;supported by the National Natural Science Foundation of China (No. 50807002);the Aeronautical Science Foundation of China (No. 2008ZC51045);the Beijing Nova Program (No. 2008B13)

摘　　要：This paper presents an auto-tuning method for a proportion plus integral（PI） controller for permanent magnet synchronous motor（PMSM） drives, which is supposed to be embedded in electro-mechanical actuator（EMA） control module in aircraft. The method, based on a relay feedback with variable delay time, explores different critical points of the system frequency response.The Nyquist points of the plant can then be derived from the delay time and filter time constant.The coefficients of the PI controller can then be obtained by calculation while shifting the Nyquist point to a specific position to obtain the required phase margin. The major advantage of the autotuning method is that it can provide a series of tuning results for different system bandwidths and damping ratios, corresponding to the specification for delay time and phase margin. Simulation and experimental results for the PMSM controller verify the performance of both the current loop and the speed loop auto-tuning.This paper presents an auto-tuning method for a proportion plus integral（PI） controller for permanent magnet synchronous motor（PMSM） drives, which is supposed to be embedded in electro-mechanical actuator（EMA） control module in aircraft. The method, based on a relay feedback with variable delay time, explores different critical points of the system frequency response.The Nyquist points of the plant can then be derived from the delay time and filter time constant.The coefficients of the PI controller can then be obtained by calculation while shifting the Nyquist point to a specific position to obtain the required phase margin. The major advantage of the autotuning method is that it can provide a series of tuning results for different system bandwidths and damping ratios, corresponding to the specification for delay time and phase margin. Simulation and experimental results for the PMSM controller verify the performance of both the current loop and the speed loop auto-tuning.

关 键 词：Auto-tuning EMA Matrix converters PI control PMSM 

分 类 号：V242[航空宇航科学与技术—飞行器设计]