High-Efficiency operation of PWM inverter-driven hysteresis motor with short-duration overexcitation

Author

Kubota, Tomotsugu ; Tamura, Takahiro ; Kurihara, Kazumi

Author_Institution

Dept. of Electr. & Electron. Eng., Ibaraki Univ., Hitachi, Japan

fYear

2009

fDate

15-18 Nov. 2009

Firstpage

1

Lastpage

4

Abstract

This paper presents the new scheme for high-efficiency operation of PWM inverter-driven hysteresis motor with short-duration overexcitation. When the terminal voltage V_i of the hysteresis motor running at synchronous speed is continuously increased up to nV_i (n>1) and then continuously decreased to V_i, input currents are reduced and output power is increased at the same time. Because of this, the efficiency becomes high. In this paper, the terminal voltage is controlled by changing the modulation degree of PWM inverter continuously.

Keywords

PWM invertors; hysteresis motors; PWM inverter-driven hysteresis motor; high-efficiency operation; short-duration overexcitation; terminal voltage; Hysteresis motors; Magnetic hysteresis; Magnetic materials; Pulse width modulation inverters; Reactive power; Rotors; Stators; Synchronous motors; Torque; Voltage control; Efficiency; PWM inverter; hysteresis motors; short-duration overexicitation;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems, 2009. ICEMS 2009. International Conference on

Conference_Location

Tokyo

Print_ISBN

978-1-4244-5177-7

Electronic_ISBN

978-4-88686-067-5

Type

conf

DOI

10.1109/ICEMS.2009.5382651

Filename

5382651