A novel flux observer in sensorless PMSM drives

3rd International Conference on Advances in Energy, Environment and Chemical Engineering

能源学;生态环境科学;化学工业

Xing, Yan^1 ; Zhen, Zhilong^1

College of Computer, Tonghua Normal University, Tonghua

134001, China^1

关键词: Direct torque control;    Flux observers;    Input and outputs;    Motor terminals;    Particle filter;    Stator currents;    Stator resistance;    System state variables;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/69/1/012185/pdf
DOI  :  10.1088/1755-1315/69/1/012185

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

This paper investigates problems associated with direct torque control (DTC) of PMSM, such as the stator resistance variations, the integration drift and the integration saturation in order to reduce the system ripples. The standard particle filter (PF) algorithm was introduced to DTC system of PMSM. The motor terminal voltages and stator currents are the system input and output variables. and the two stator fluxes are used as system state variables. Then the flux can be estimated according to PF algorithm when the voltages and stator currents have been measured. The method was implemented in Simulink. The simulation results indicate that the system based on PF observer has good performance.