Title:
同期機の磁極位置検出装置
Document Type and Number:
Japanese Patent JP5619195
Kind Code:
B2
Abstract:
An object is to provide a magnetic-pole position detection apparatus for synchronous machines that allows a desired accuracy of magnetic-pole position detection regardless of variation in DC voltage of a DC voltage source. Calculation means (2a) changes a pulse width (tp) and a pulse-quiescent width (tn) in accordance with a DC voltage detection value (Vdc), using a pulse width determination section (22a), such that a desired accuracy of magnetic-pole position detection can be obtained regardless of variation in DC voltage of a DC voltage source (5). The calculation means (2a) also performs control such that a sampling timing is fixed at the end point of the pulse width (tp) of voltage vectors regardless of the DC voltage detection value (Vdc).
Inventors:
山崎 尚徳
畠中 啓太
河野 雅樹
北中 英俊
畠中 啓太
河野 雅樹
北中 英俊
Application Number:
JP2013005937A
Publication Date:
November 05, 2014
Filing Date:
January 17, 2013
Export Citation:
Assignee:
三菱電機株式会社
International Classes:
H02P27/06; G16Z99/00; H02P6/06; H02P6/08; H02P6/17; H02P6/18; H02P6/182; H02P6/28; H02P21/00; H02P21/18; H02P21/22; H02P21/24; H02P27/04; H02P27/08
Attorney, Agent or Firm:
Keigo Murakami
Masuo Oiwa
Kenji Yoshizawa
Takenaka 岑 student
Masuo Oiwa
Kenji Yoshizawa
Takenaka 岑 student