| 永磁偏置磁轴承三电平PWM开关功放的研究 |
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| 引用本文： | 张亮,房建成.永磁偏置磁轴承三电平PWM开关功放的研究[J].电力电子技术,2006,40(1):1-2,11. |
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| 作者姓名： | 张亮 房建成 |
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| 作者单位： | 北京航空航天大学,北京,100083 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 针对永磁偏置的磁轴承开关功放需要实现低纹波的问题，提出了一种新颖的三电平PWM控制方法．并给出了具体实现电路。通过三电平与传统的两电平PWM开关功放的对比实验验证了该方案的可行性。
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| 关 键 词： | 功率放大器 脉宽调制/磁轴承 开关功放 三电平 电流纹波 |
| 文章编号： | 1000-100X（2006）01-0001-02 |
| 收稿时间： | 2005-07-30 |
| 修稿时间： | 2005-07-30 |
Study on Three-level PWM Switching Power Amplifier for Active Magnetic Bearing biased with Permanent Magnet |
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| ZHANG Liang,FANG Jian-cheng.Study on Three-level PWM Switching Power Amplifier for Active Magnetic Bearing biased with Permanent Magnet[J].Power Electronics,2006,40(1):1-2,11. |
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| Authors: | ZHANG Liang FANG Jian-cheng |
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| Abstract: | This paper introduces a novel three-level Pulse Width Modulation(PWM) strategy used to reduce power consumption of switching power amplifier for active magnetic bearing biased with permanent magnet.Firstly the basic principle of the switching power amplifier is analyzed,then the realization of the control strategy is presented,finally the experimental results compared with the common two-level PWM switching power amplifier show that the three-level PWM switching power amplifier significantly reduces the output current ripple and meets the requirement for low current ripple.At the same time the experimental results demonstrate the feasibility and effectiveness of the mentioned scheme. |
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| Keywords: | power amplifier PWM/magnetic beating switching power amplifier three-level current ripple |
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