| 逆变器并联调速系统环流抑制及稳定性分析 |
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| 引用本文： | 沈浙,乔鸣忠,朱俊杰. 逆变器并联调速系统环流抑制及稳定性分析[J]. 高电压技术, 2009, 35(11): 2846-2852 |
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| 作者姓名： | 沈浙 乔鸣忠 朱俊杰 |
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| 作者单位： | 海军工程大学电气与信息工程学院,武汉,430033;海军工程大学电气与信息工程学院,武汉,430033;海军工程大学电气与信息工程学院,武汉,430033 |
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| 基金项目： | 国家自然科学基金委员会创新群体科学基金(50421703)~~ |
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| 摘 要： | 为了增大调速系统容量,采用了逆变器并联的方式。分析了逆变器并联调速系统主电路及其等效电路,并对调速系统中电机电枢回路及环流回路进行了深入的研究,提出了一种通过增大环流环交接频率使得环流抑制与调速性能兼顾的方法。在此基础上设计了新型的控制方式,推导了该系统闭环传递函数。通过分析该控制方式下控制参数与控制性能及系统稳定性的关系,得出了能够满足控制要求的参数关系式。仿真和实验结果表明,所提出的控制方式能有效地抑制环流,其调速性能与单台逆变器驱动的调速系统相当。
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| 关 键 词： | 逆变器并联 调速系统 环流抑制 稳定性 三相异步电机 矢量控制 |
Circulating-current Restrain and Stability Analysis of Parallel Inverter Variable-speed System |
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| SHEN Zhe , QIAO Ming-zhong , ZHU Jun-jie. Circulating-current Restrain and Stability Analysis of Parallel Inverter Variable-speed System[J]. High Voltage Engineering, 2009, 35(11): 2846-2852 |
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| Authors: | SHEN Zhe QIAO Ming-zhong ZHU Jun-jie |
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| Affiliation: | SHEN Zhe,QIAO Ming-zhong,ZHU Jun-jie(College of Electrical and Information Engineering,Naval University of Engineering,Wuhan 430033,China) |
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| Abstract: | The parallel inverter was used to explain the capacity of variable-speed system.The main circuit and equivalent circuit of parallel inverter variable-speed system was analyzed,and the armature current loop and circulating-current loop were researched.Moreover,a method which is used to restrain the circulating-current and to enhance the speed-adjusting performance by enlarging the crossover frequency of circulating-current loop was proposed.Accordingly,a new control method was designed,and the closed loop tr... |
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| Keywords: | parallel inverter variable-speed system circulating-current restrain stability three phase asynchronous motor vector control |
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