Title :
Static error elimination algorithm for PMSM predictive current control
Author :
Wang Geng ; Yang Ming ; Niu Li ; Gui Xianguo ; Xu Dianguo
Author_Institution :
Harbin Inst. of Technol., Harbin, China
Abstract :
This paper presents an algorithm to eliminate the static error of PMSM predictive current control when the model in controller has parameter mismatches with real system. The algorithm mainly applies to cases where the controller inductance is smaller and the controller flux is not accurate. The static error caused by smaller inductance is eliminated by introducing error integration in d axis current control. The error caused by flux inaccuracy is eliminated by dynamically adjusting the flux parameter according to q axis current error. The algorithm is verified through simulation and experiments on a 3.3kW PMSM servo platform.
Keywords :
electric current control; machine control; permanent magnet motors; predictive control; synchronous motors; PMSM predictive current control; controller flux; controller inductance; current static error; permanent magnet synchronous motors; power 3.3 kW; static error elimination algorithm; Current control; Heuristic algorithms; Inductance; Prediction algorithms; Predictive control; Predictive models; Pulse width modulation; PMSM; current static error; predictive control;
Conference_Titel :
Control Conference (CCC), 2014 33rd Chinese
Conference_Location :
Nanjing
DOI :
10.1109/ChiCC.2014.6896282
