Title :
Enhanced field-weakening strategy with an asymmetrical fuzzy logic voltage regulator
Author :
Lei, Zhu ; Xuhui, Wen ; Shan, Xue
Author_Institution :
Grad. Univ. of Chinese Acad. of Sci., Beijing, China
Abstract :
Field weakening control is a key technology in high speed permanent magnet machines. Inverter output voltage regulation is one of the basic field-weakening strategies for its parameter adaptability. But with a conventional PI regulator, there is a contradiction between system stability and torque output capability. A new voltage regulator based on fuzzy logic is proposed in this paper. An asymmetrical designing of membership functions and fuzzy rules remarkably enhanced the system stability and performance. Simulation results verified the discussion.
Keywords :
control system synthesis; fuzzy control; invertors; machine vector control; permanent magnet machines; synchronous motor drives; voltage control; voltage regulators; IPMSM drive; asymmetrical design; enhanced field-weakening control; fuzzy logic voltage regulator; fuzzy rule; high-speed permanent magnet machine; inverter output voltage regulation; membership function; Control systems; Equations; Fuzzy logic; Inverters; Permanent magnet machines; Regulators; Stability; Stators; Torque; Voltage control;
Conference_Titel :
Power Electronics and Motion Control Conference, 2009. IPEMC '09. IEEE 6th International
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-3556-2
Electronic_ISBN :
978-1-4244-3557-9
DOI :
10.1109/IPEMC.2009.5157743
