Position Sensorless Drive in Low-Speed Region for Permanent Magnet Synchronous Motors Using Induced Voltage Caused by Magnetic Saturation
-
- Iwaji Yoshitaka
- Hitachi Research Laboratory, Hitachi, Ltd.
-
- Aoyagi Shigehisa
- Hitachi Research Laboratory, Hitachi, Ltd.
-
- Takahata Ryoichi
- Hitachi Research Laboratory, Hitachi, Ltd.
-
- Tobari Kazuaki
- Hitachi Research Laboratory, Hitachi, Ltd.
-
- Suzuki Ippei
- Hitachi Car Engineering Co., Ltd.
-
- Hano Masaki
- Hitachi Automotive Systems Ltd.
Bibliographic Information
- Other Title
-
- 磁気飽和による起電圧を利用した永久磁石同期モータの低速センサレス
- 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
Search this article
Description
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.
Journal
-
- IEEJ Transactions on Industry Applications
-
IEEJ Transactions on Industry Applications 134 (8), 703-711, 2014
The Institute of Electrical Engineers of Japan
- Tweet
Keywords
Details 詳細情報について
-
- CRID
- 1390001204658325248
-
- NII Article ID
- 130004678025
-
- NII Book ID
- AN10012320
-
- ISSN
- 13488163
- 09136339
-
- NDL BIB ID
- 025754352
-
- Text Lang
- ja
-
- Data Source
-
- JaLC
- NDL
- Crossref
- CiNii Articles
-
- Abstract License Flag
- Disallowed