sensorless control of interior permanent magnet synchronous motor in low-speed region using novel adaptive filter
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2016
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Abstract
This paper presents a novel position and speed estimation method for low-speed sensorless control of interior permanent-magnet synchronous machines (IPMSMs). The parameter design of the position and speed estimator is based on the sampled current rather than the motor electrical parameters. The proposed method not only simplifies the parameter design, it enables the estimator to work normally even in the condition that the electrical parameters are uncertain or varied. The adaptive filters are adopted to extract the desired high frequency current. The structure and corresponding transfer function are analyzed. To address the shortage of insufficient stop-band attenuation, the structure of the adaptive filter is modified to provide suitable bandwidth and stop-band attenuation simultaneously. The effectiveness of the proposed sensorless control strategy has been verified by simulations and experiments.
| Reference Key |
tian2016energiessensorless
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|---|---|
| Authors | ;Lisi Tian;Jin Zhao;Jiajiang Sun |
| Journal | acs combinatorial science |
| Year | 2016 |
| DOI |
10.3390/en9121084
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| URL | |
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