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感应电机快速投入控制参数的解析

, PP. 154-160

Keywords: 感应电机,快速投入,复合开关,空间矢量,初始触发角,第三相触发角

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Abstract:

提出一种基于真空断路器与晶闸管阀并联方式构成的复合开关快速投入感应电机负载控制参数解析研究方法,即先投入两相定子绕组,然后再投入第三相定子绕组,从而实现在一个工频周期内完成三相定子绕组快速全投入、抑制冲击电流、低损耗、低成本和高可靠性之目的。基于在同步转速附近和无残压约束条件下感应电机非对称-对称数学模型,运用解析方法推导出快速投入控制参数与感应电机参数的函数关系,并利用仿真和实验录波验证技术的可行性。基于复合开关快速投入感应电机负载控制方法能有效解决速动性与可靠性之间的矛盾,为感应电机负载控制提供一条崭新的工程化解决方案。基于感应电机在非对称-对称模型的定子电流瞬态解析方法为进一步实现有残压条件下感应电机快速投入控制参数研究提供理论支持。

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