Title :
Analysis and Compensation of Time Delay Effects in Hardware-in-the-Loop Simulation for Automotive PMSM Drive System
Author :
Choi, Chinchul ; Lee, Wootaik
Author_Institution :
Grad. Sch. of Control & Instrum. Eng., Changwon Nat. Univ., Changwon, South Korea
Abstract :
This paper analyzes and compensates unavoidable time delay effects in a hardware-in-the-loop (HIL) simulation for automotive permanent magnet synchronous motordrive systems. The amount of time delay between a digital controller and HIL simulator is investigated. The effects of the time delay are analyzed by use of s-domain representation of the entire closed-loop system. In addition, a stability study has been carried out using a root locus. The analysis results show that the time delay strongly affects the accuracy and stability of the HIL simulation according to increment of the motor angular speed. For an accurate HIL simulation, a compensation of the time delays is applied and verified through comparison with offline simulation results.
Keywords :
automotive engineering; closed loop systems; compensation; control engineering computing; delays; digital control; electric machine analysis computing; permanent magnet motors; root loci; stability; synchronous motor drives; HIL simulation; automotive PMSM drive system; automotive permanent magnet synchronous motor drive system; closed-loop system; digital controller; hardware-in-the-loop simulation; motor angular speed; root locus; s-domain representation; stability study; time delay effect; Analytical models; Delay; Delay effects; Mathematical model; Pulse width modulation; Real time systems; Simulation; Delay effects; hardware-in-the-loop (HIL); permanent magnet motors; real-time systems;
Journal_Title :
Industrial Electronics, IEEE Transactions on
DOI :
10.1109/TIE.2011.2172169
