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Title:
DEVICE FOR ROBUST CONTROL OF MAGNETIC BEARING BY LOOP SHAPING METHOD
Document Type and Number:
Japanese Patent JP2007107603
Kind Code:
A
Abstract:

To provide a magnetic bearing control device which simplifies arithmetic processing and realizes multiple input and multiple output robust control suitable for central control of a plurality of magnetic bearings.

A first mathematical model of a detailed control target 20 comprising an actuator 21, a rotary body 1, an amplifier 22 and a position sensor 23 is derived. An order reduction of the first mathematical model is performed, and a second mathematical model of an enlarged control target Ga(s) comprising a PI control section 13, a subtracter 14, a PD control section 15 and the detailed control target 20 is derived by using the order-reduced first mathematical model. The order of the second mathematical model is set to be low, and an expression is derived by employing a loop shaping method for the second mathematical model. The robust control is performed according to the expression.


Inventors:
TAKADA SHOJI
Application Number:
JP2005298724A
Publication Date:
April 26, 2007
Filing Date:
October 13, 2005
Export Citation:
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Assignee:
JAPAN ATOMIC ENERGY AGENCY
International Classes:
F16C32/04; F01D25/00; G05B13/02
Domestic Patent References:
JPH09126238A1997-05-13
JPH09274504A1997-10-21
JP2002258905A2002-09-13
JP2001260240A2001-09-25
JPH10220475A1998-08-21
JPH09126238A1997-05-13
JPH09274504A1997-10-21
JP2002258905A2002-09-13
JP2001260240A2001-09-25
JPH10220475A1998-08-21
Attorney, Agent or Firm:
Kazuo Shamoto
Tadashi Masui
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Hideo Tanaka



 
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