Open AccessResearch on the Influence of Torque, Speed and Allowable Loss Deviation on the Optimized Current in the Efficiency Optimization Control of IPMSM
Author(s) -
Likun Pang,
Qinmu Wu,
Senquan Ma,
Jiahao Li
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/790/1/012027
Subject(s) - correctness , control theory (sociology) , current (fluid) , torque , interpolation (computer graphics) , set (abstract data type) , computer science , state (computer science) , control (management) , engineering , algorithm , physics , animation , computer graphics (images) , artificial intelligence , electrical engineering , thermodynamics , programming language
In the efficiency optimization control of IPMSM, the working state of the search should be determined by using the search method to obtain the initial optimized current set. For any system, it is expected that the working state of the search should be as little as possible. Meanwhile, according to the initial optimized current set, the interpolation method can be used accurately to realize the efficiency optimization of the whole state. Based on the total loss model of IPMSM, various constraints of running and optimization theory, the equation satisfying the optimization current was obtained, and the influence of motor speed and torque on the optimization current was theoretically analyzed. Through the simulation test of electric drive system of electric vehicle, the optimization current of motor in various states is searched. The simulation results verify the correctness of the theoretical analysis results. Then the number of states to be searched under different allowable loss deviations is analyzed to obtain the initial optimized current set.