An Innovative Rotor Position Detection at Stand-Still and Low Speed with Carrier Phase-Shifted PWM Method
| Autor: | Junci Cao, Weili Li, Wu Zhigang, Suk Won Cha, Wei Feng, Kewang Qu, Zhang Yihuang, Yanhui Zhang, Guoqing Xu |
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| Rok vydání: | 2018 |
| Předmět: |
Physics
0209 industrial biotechnology Rotor (electric) Mechanical Engineering 02 engineering and technology Industrial and Manufacturing Engineering law.invention Inductance 020303 mechanical engineering & transports 020901 industrial engineering & automation 0203 mechanical engineering Three-phase law Control theory Position (vector) Harmonic Electrical and Electronic Engineering Polarity (mutual inductance) Pulse-width modulation Voltage |
| Zdroj: | International Journal of Precision Engineering and Manufacturing. 19:1281-1289 |
| ISSN: | 2005-4602 2234-7593 |
| DOI: | 10.1007/s12541-018-0152-6 |
| Popis: | An innovative permanent magnet synchronous motor rotor position detection method using d-q reference-frames derived from PWM inverter switching is presented based on carrier phase-shift PWM method. It also gives the development the polarity identification at standstill for permanent magnet synchronies motor in the rotary frame with position detected of the neutral voltage. The new technique detects the motor position from simple measurements of the neutral point voltage of the motor influenced by the variation of inductances with respect to rotor position. The transfer is derived with constant element and 2nd harmonic element of selfinductance and mutual-inductance between three phase inductances and the inductance of d-axis and q-axis. Theoretical studies are carried out and verified using experiment results with variation rotor position over one electrical cycle at standstill. Rotor position estimation from stator inductance variation with rotor position is effective in zero speed and low speed. |
| Databáze: | OpenAIRE |
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