摘要
磁悬浮轴承功率放大器的性能对整个磁悬浮轴承系统有着重要的影响。首先介绍了磁悬浮轴承功放的性能参数、分类,然后比较了每一类功率放大器的优缺点,并讨论分析开关功放的拓扑结构、控制策略以及研究现状。理论分析表明,三态开关功率放大器具有输出电流纹波小、动态性能好、开关损耗低等优点,在磁悬浮轴承功放中有着广阔的应用前景。
Power amplifier is an important element in magnetic bearings system, whose performance has great effect on the whole system. The performance parameters and classification were described, the advantages and disadvantages of each type of power amplifier were compared, and the topology, control strategy and research situation of switching power amplifier were discussed. Theoretical analysis indicates that three-level switching power amplifier has characteristics of lower current ripple, less power loss, with a good dynamic response capability. And it has broad application prospects in the field of power amplifier for magnetic bearings.
出处
《微特电机》
北大核心
2012年第3期73-76,共4页
Small & Special Electrical Machines
基金
江苏省科技支撑计划(BE2011188)
江苏省普通高校研究生科研创新计划(CX10S_009Z)
关键词
磁悬浮轴承
电流纹波
脉宽调制
功率放大器
magnetic bearings
current ripple
pulse width modulation
power amplifier
