Design of PWM Switching Power Amplifier for Active Magnet Bearing
Electrical control system plays a decisive role in the running performance for a permanent magnet biased magnetic bearing. Power amplifier, as a part of the electronic control system, its performance directly affects the suspension system. So the amplifier design is an important part of the system. A three-level switching power amplifier is presented. Simulation and experiment results show that with the full-bridge three-level PWM switching power amplifier, it can provide bidirectional current and meet the needs of current control of magnetic bearings. Thus it may improve the DC bus voltage to increase the dynamic circuit performance while reducing current ripple.
magnet bearing three-level switching power amplifier current ripple
HUANG Lei CUI Ying HUANG Peng
China Automotive Technology & Research Center Tianjin, China Rail Road Engineering Branch Company of CCCC First Harbor Engineering Company Ltd Tianjin, China Tianjin Polytechnic University Tianjin, China
国际会议
重庆
英文
491-494
2011-01-21（万方平台首次上网日期，不代表论文的发表时间）