TY - GEN
T1 - Comparison of zero-power controllers in double parallel magnetic suspension system with parallel connected coils
AU - Narisawa, Yoshinori
AU - Yamaguchi, Daisuke
AU - Hara, Masayuki
AU - Takasaki, Masaya
AU - Mizuno, Takeshi
AU - Ishino, Yuji
PY - 2015/9/8
Y1 - 2015/9/8
N2 - A basic single-degree-of-freedom magnetic suspension system consists of one floator, one electromagnet and one amplifier. For multi-degrees-of-freedom control, multiple electromagnets and multiple amplifiers are necessary, which increases the cost of total system. As a means of overcoming this problem, parallel magnetic suspension has been proposed where multiple floators are controlled with a single power amplifier. Parallel magnetic suspension systems are classified into two types according to the output of the power amplifier: current-controlled and voltage-controlled. Voltage-controlled parallel magnetic suspension systems are classified into two types: series connected and parallel connected. The feasibilities of these systems have been already demonstrated in the previous work. This paper focuses on the voltage-controlled parallel magnetic suspension system with parallel-connected coils. Three approaches to zero-power control are applicable in such a system. This paper compares these approaches in a viewpoint of pole assignment. In addition, a relationship in the feedback gains between the three approaches are presented numerically.
AB - A basic single-degree-of-freedom magnetic suspension system consists of one floator, one electromagnet and one amplifier. For multi-degrees-of-freedom control, multiple electromagnets and multiple amplifiers are necessary, which increases the cost of total system. As a means of overcoming this problem, parallel magnetic suspension has been proposed where multiple floators are controlled with a single power amplifier. Parallel magnetic suspension systems are classified into two types according to the output of the power amplifier: current-controlled and voltage-controlled. Voltage-controlled parallel magnetic suspension systems are classified into two types: series connected and parallel connected. The feasibilities of these systems have been already demonstrated in the previous work. This paper focuses on the voltage-controlled parallel magnetic suspension system with parallel-connected coils. Three approaches to zero-power control are applicable in such a system. This paper compares these approaches in a viewpoint of pole assignment. In addition, a relationship in the feedback gains between the three approaches are presented numerically.
KW - magnetic suspension
KW - parallel magnetic suspension
UR - http://www.scopus.com/inward/record.url?scp=84957644819&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84957644819&partnerID=8YFLogxK
U2 - 10.1109/ASCC.2015.7244847
DO - 10.1109/ASCC.2015.7244847
M3 - Conference contribution
AN - SCOPUS:84957644819
T3 - 2015 10th Asian Control Conference: Emerging Control Techniques for a Sustainable World, ASCC 2015
BT - 2015 10th Asian Control Conference
A2 - Selamat, Hazlina
A2 - Ramli, Hafiz Rashidi Haruna
A2 - Faudzi, Ahmad Athif Mohd
A2 - Rahman, Ribhan Zafira Abdul
A2 - Ishak, Asnor Juraiza
A2 - Soh, Azura Che
A2 - Ahmad, Siti Anom
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 10th Asian Control Conference, ASCC 2015
Y2 - 31 May 2015 through 3 June 2015
ER -