| 磁轴承三态开关功率放大器的电流模式控制 |
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| 引用本文： | 李冰,邓智泉,严仰光.磁轴承三态开关功率放大器的电流模式控制[J].电力电子技术,2003,37(4):52-55. |
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| 作者姓名： | 李冰 邓智泉 严仰光 |
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| 作者单位： | 南京航空航天大学,江苏,南京,210016 |
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| 基金项目： | 国家自然科学基金资助 (599770 0 9)，航空科学基金资助(99F52 0 0 4 ) |
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| 摘 要： | 针对传统磁轴承二态开关功放电流纹波大和损耗大、可靠性差的缺点，提出了一种电流模式控制的三态开关功放，介绍了其工作原理和电路的实现。研制了一套容量为0．7kVA的磁轴承开关功放。实验结果表明，该功放电流纹波小、效率高、带宽大、安全可靠。
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| 关 键 词： | 功率放大器 电流模式 三态开关功率放大器 磁轴承 电流纹波 损耗 |
| 文章编号： | 1000-100X(2003)04-0052-04 |
| 修稿时间： | 2002年12月29 |
Current Mode Switching for Tri-state Amplifiers in Magnetic Bearing Control System Supporting High Speed Motors |
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| LI Bin,DENG Zhi quan,YAN Yang guang.Current Mode Switching for Tri-state Amplifiers in Magnetic Bearing Control System Supporting High Speed Motors[J].Power Electronics,2003,37(4):52-55. |
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| Authors: | LI Bin DENG Zhi quan YAN Yang guang |
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| Abstract: | The standard bi state magnet bearing amplifier has some disadvantages such as high current harmonics and Losses,low reliability,and the current mode switching for tri state amplifier is expounded.The basic principle and circuit of this kind of amplifier are introduced.A 0.7 kVA tri state switching power amplifier using current mode switching is developed for magnetic bearings.Experimental results show that the new designed amplifier has many features,such as low current distortion,high power,efficiency,reliability and wide bandwidth and so on. |
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| Keywords: | power amplifier/current mode tri state |
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