書誌事項
- タイトル別名
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- Position Sensorless Drive in Low-Speed Region for Permanent Magnet Synchronous Motors Using Induced Voltage Caused by Magnetic Saturation
- ジキ ホウワ ニ ヨル キデンアツ オ リヨウ シタ エイキュウ ジシャク ドウキ モータ ノ テイソク センサレス
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説明
Conventional position sensorless control methods for a permanent magnet synchronous motor (PMSM) in a low-speed region suffer from some disadvantages such as too much electromagnetic noise, the need for rotor saliency, and so on. On the other hand, a position sensorless method that introduces an induced voltage caused by magnetic saturation (IVMS) has already been reported(14). IVMS can be detected by an open phase of a PMSM using a block commutation drive, and it changes depending on the rotor position. The position sensor-less drive is achieved by detecting the IVMS. This method needs no rotor saliency and or harmonic injection. However, this technique has a disadvantage. Because the IVMS is a very small voltage, it is eliminated by a reversal direction electromotive force (EMF). It is difficult to achieve a reversal rotation drive in a low-speed region. To solve this problem, we introduce a PWM pulse shift to the low-speed region. With this method, both the normal and reversal direction IVMSs can be detected and the bidirectional drive is achieved. We implemented this method by using a 16-bit microcomputer and an FPGA with a 20kHz carrier frequency. Moreover, excellent drive performance in the low-speed region was obtained in the experiments.
収録刊行物
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- 電気学会論文誌D(産業応用部門誌)
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電気学会論文誌D(産業応用部門誌) 134 (8), 703-711, 2014
一般社団法人 電気学会
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詳細情報 詳細情報について
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- CRID
- 1390001204658325248
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- NII論文ID
- 130004678025
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- NII書誌ID
- AN10012320
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- ISSN
- 13488163
- 09136339
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- NDL書誌ID
- 025754352
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
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- 使用不可