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变流器单边可控下开绕磁同步发电机的控制技术

, PP. 123-130

Keywords: 开绕组永磁同步发电机,变流器单边可控,电压空间矢量,最大线性调制度,单位功率因数

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Abstract:

为改善开绕组永磁同步发电机控制系统的复杂性,本文提出一种不控整流器与可控变流器集成的新型拓扑结构及其优化控制策略。通过建立开绕组永磁同步发电机数学模型,深入分析了变流器单边可控下开绕组永磁同步发电机系统的电压空间矢量分配机制。通过分析电流矢量对不控整流器交流侧电压矢量的影响,研究了两侧直流母线电压相同情况下的系统电压空间矢量调制范围,并根据最大线性调制度的要求确定了单位功率因数控制作为所研系统的最优控制策略。最后,通过搭建开绕组永磁同步发电机实验平台,验证了所提出控制策略的正确性和可行性。

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