Potentiality of a New Minimum-Order Back-EMF State-Observer Taking Acceleration into Account for Sensorless Vector Control of Permanent-Magnet Synchronous Motors

• Shinnaka Shinji

  Dept. of Electrical Engineering, Kanagawa University

• Saito Yoji

  Product Development Dept., Reliance Electric Limited

Bibliographic Information

Other Title

• 永久磁石同期モータセンサレスベクトル制御のための加速度を考慮した最小次元誘起電圧状態オブザーバの可能性
• エイキュウ ジシャク ドウキ モータセンサレスベクトル セイギョ ノ タメ ノ カソクド オ コウリョ シタ サイショウジゲン ユウキ デンアツ ジョウタイ オブザーバ ノ カノウセイ

Abstract

This paper proposes new sensorless vector control methods for permanent-magnet synchronous motors (PMSMs), which are based on a new minimum-order back-EMF state-observer taking acceleration into account, and examines potentiality of the improved back-EMF observer through experiments. Conventional sensorless vector control methods for PMSMs using an estimate of back-EMF are established under the assumption of constant speed or zero acceleration, consequently cannot operate properly at modes requiring rapid speed change especially in low speed region. On the other hand, the proposed back-EMF observer has the following features: 1) it is a new back-EMF state-observer taking acceleration into account and requiring no additional approximation to motor mathematical model; 2) it is a minimum order state-observer; 3) it utilizes motor parameters in the simplest manner; 4) it can be applied to both of salient-pole and non-salient-pole PMSMs; 5) it can be realized in both rotor and stator reference frames. Detailed designs and analyses for the improved state-observer and the sensorless vector control systems in both rotor and stator reference frames are given. In relation to the sensorless vector control systems, this paper newly proposes a double-integral type PLL method and an integral-feedback type acceleration/speed estimation method. Their potentialities are examined through experiments.

Journal

• IEEJ Transactions on Industry Applications

  IEEJ Transactions on Industry Applications 126 (11), 1467-1478, 2006

  The Institute of Electrical Engineers of Japan

Keywords

• acceleration
• state observer
• minimum order
• back-EMF
• sensorless vector control
• synchronous motor

Details

• CRID: 1390001204657779840
• NII Article ID: 10018318591
• NII Book ID: AN10012320
• DOI: 10.1541/ieejias.126.1467
• ISSN: 13488163
• ISSN: 09136339
• NDL BIB ID: 8560195
• Web Site: http://id.ndl.go.jp/bib/8560195
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I8560195
• Web Site: https://www.jstage.jst.go.jp/article/ieejias/126/11/126_11_1467/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed