A Smith Structure-Based Delay Compensation Method for Model Predictive Current Control of PMSM System
Yao Wei, Yanjun Wei, Yening Sun, Hanhong Qi, Xiaoqiang Guo, Mengyuan Li
Abstract
In model predictive control (MPC) system for permanent magnet synchronous motor (PMSM), calculation delay of the strategy influences control performances seriously. A Smith structure-based model predictive current control (MPCC) strategy is proposed in this article. The cost function of MPCC is improved and the Smith structure is added to compensate calculation delay. Advantages such as speed ITAE, settling time, and stability compared with the conventional MPCC strategy under the same conditions are analyzed. The effectiveness and correctness of the proposed method are corroborated by the simulation and experimental results.
Topics & Concepts
Control theory (sociology)Model predictive controlCorrectnessCompensation (psychology)Settling timeStability (learning theory)Synchronous motorComputer scienceCurrent (fluid)Permanent magnet synchronous motorSmith predictorControl (management)Control engineeringEngineeringMagnetStep responseTemperature controlPID controllerMechanical engineeringElectrical engineeringProgramming languageMachine learningPsychoanalysisPsychologyArtificial intelligenceMultilevel Inverters and ConvertersAdvanced DC-DC ConvertersSensorless Control of Electric Motors