|Table of Contents|

Discrete adaptive sliding mode control based on characteristic model for PMSM speed regulation system

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2015年06期
Page:
637-
Research Field:
Publishing date:

Info

Title:
Discrete adaptive sliding mode control based on characteristic model for PMSM speed regulation system
Author(s):
Wang ZhihongWang XiangWu YifeiGuo JianChen Qingwei
School of Automation,NUST,Nanjing 210094,China
Keywords:
characteristic model permanent magnet synchronous motor speed regulation system discrete control adaptive control sliding mode control load inertia ratio load inertia torque disturbance double power reaching law
PACS:
TM351
DOI:
-
Abstract:
Aiming at a permanent magnet synchronous motor(PMSM)speed regulation system with large load inertia ratio,uncertain load inertia and load torque disturbance,a discrete adaptive sliding mode controller(DASMC)based on characteristic model is proposed.A characteristic model of the PMSM speed regulation system is established,and the recursive least square algorithm with forgetting factor is adopted to identify the time-varying parameters of the characteristic model.A speed controller of a servo system is constituted by an adaptive controller and a sliding mode controller based on the identified parameters.Double power reaching law is adopted to reduce system chattering.The stability of the closed-loop system is verified.Simulation results show that the proposed method can adapt to ten times below load inertia variety,and has strong robustness to load torque disturbance,and insures the dynamic performance and steady-state precision of the PMSM speed regulation system.

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Last Update: 2015-12-31