DC-Brushless Servo System Without Rotor Position And Speed Sensor

Hiroshi Watanabe; Takashi Isii; Tomoo Fujii

doi:10.1117/12.942966

19 October 1987 DC-Brushless Servo System Without Rotor Position And Speed Sensor

Hiroshi Watanabe, Takashi Isii, Tomoo Fujii

Proceedings Volume 0854, IECON '87: Motor Control and Power Electronics; (1987) https://doi.org/10.1117/12.942966
Event: IECON, Cambridge, 1987, Cambridge, MA, United States

Abstract

A variable speed drive system is studied which consists of the inverter-fed permanent magnet field synchronous motor without a rotor position sensor and a rotating speed sensor. A method is explained, which determines the rotor position angles at a standstill or at rotating conditions and the speed at several conditions by measuring the instantaneous values of phase voltages and currents. The experimental results obtained by a prototype drive system without a rotor position and a speed sensor are compared with the those obtained by an ordinary DC brushless servo system with a rotor position sensor and a tachogenerator.

Citation Download Citation

Hiroshi Watanabe, Takashi Isii, and Tomoo Fujii "DC-Brushless Servo System Without Rotor Position And Speed Sensor", Proc. SPIE 0854, IECON '87: Motor Control and Power Electronics, (19 October 1987); https://doi.org/10.1117/12.942966

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