低分辨率位置传感器永磁同步电机精确位置估计方法综述

doi:10.19595/j.cnki.1000-6753.tces.160332

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Abstract Servo motor has been widely used in household appliances, new energy utilization and equipment manufacture. To obtain high precise rotor position information, the rotary transformers or photoelectric encoders are often adopted, but their prices are relatively high in general thus may add the system design cost. The sensorless technology can barely meet the application standards of industry utilization and household appliances. However, the low-resolution position sensor technology can guarantee the motor operation performance, which will effectively reduce the system cost and enhance the system reliability. In this paper, the application method and operation principle of switching hall position sensor are introduced, the coming source and correction method of the original hall positional information error are summarized. The rotor position/speed estimation strategies, such as interpolation method, synchronous frame filter method and observer method, are discussed in detail. The analysis and comparison of principles, advantages, disadvantages, application scopes and application conditions of different estimation methods were conducted from the aspects of the enhancement of motor system performance under low speed with low resolution position sensor. Lastly, existing research achievements and issues to be solved are summarized.

Key words： Permanent magnet synchronous motor (PMSM), low resolution position sensor, position sensorless, servo drive, sine wave drive

Received: 15 March 2016 Published: 05 December 2017

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TM341

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	Articles by authors
	Ni Qinan
	Yang Ming
	Xu Dianguo
	Liu Xiaosheng

Cite this article:

Ni Qinan,Yang Ming,Xu Dianguo等. Review of Precise Position Estimation Method of PMSM with Low-Resolution Position Sensor[J]. Transactions of China Electrotechnical Society, 2017, 32(22): 70-81.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.160332 OR https://dgjsxb.ces-transaction.com/EN/Y2017/V32/I22/70

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