Design of PWM Switching Power Amplifier for Active Magnet Bearing
- 10.2991/lemcs-15.2015.125How to use a DOI?
- Magnet bearing; Three-level switching power amplifier; Current ripple;PWM
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. Therefore, the amplifier design is an important part of the system. A three-level switching power amplifier is presented in this paper, which uses a three-level PWM switching scheme. The implementation of the hardware and control strategy is explained in detail. 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.
- © 2015, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Guoxiang Zhang AU - Lei Huang PY - 2015/07 DA - 2015/07 TI - Design of PWM Switching Power Amplifier for Active Magnet Bearing BT - Proceedings of the International Conference on Logistics, Engineering, Management and Computer Science PB - Atlantis Press SP - 647 EP - 650 SN - 1951-6851 UR - https://doi.org/10.2991/lemcs-15.2015.125 DO - 10.2991/lemcs-15.2015.125 ID - Zhang2015/07 ER -