Premium
Sensorless speed H ∞ control for PMSM based on energy function
Author(s) -
Wu Zhongqiang,
Wu Changhan,
Jia Wenjing,
Zhao Liru
Publication year - 2017
Publication title -
optimal control applications and methods
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.458
H-Index - 44
eISSN - 1099-1514
pISSN - 0143-2087
DOI - 10.1002/oca.2300
Subject(s) - control theory (sociology) , angular velocity , observer (physics) , electronic speed control , voltage , controller (irrigation) , rotational speed , function (biology) , computer science , control (management) , physics , engineering , classical mechanics , agronomy , quantum mechanics , artificial intelligence , evolutionary biology , electrical engineering , biology
Summary In this paper, a kind of sensorless speed H ∞ control method for PMSM based on energy function is researched. In order to control the angular speed of motor rotator effectively, at first the Hamilton model of PMSM is shaped without considering disturbance, then the rotator speed can be controlled to reach the expected value. Considered disturbance, a H ∞ controller based on the Hamilton function is designed. A kind of observer is designed by the method of expansion plus feedback based on the Hamilton function and used to measure the angular speed of rotator, and the sensorless speed shaped plusing H ∞ control is achieved. The simulation result shows that the shaping plus H ∞ control based on the observer can estimate the angular speed of rotator accurately, restrain the voltage fluctuation of grid and control the angular speed of rotator effectively.