摘要
多相电机是一个多维系统,它与传统三相电机有较大差异。目前对多相电机尤其是双三相电机控制策略,只是简单采用了三相电机控制方法,忽略多相电机本身特点,导致谐波电流增加,系统性能较差,没能发挥多相电机优势。本文首先建立了双三相永磁同步电机数学模型,针对多相电机特点,采用矢量空间解耦控制,并新提出一种新的SPWM调制方法实现多相电机多维电流控制,有效抑制谐波电流。通过仿真及实验验证,证明该方法有效性。
Multiphase motor is a multi-dimensional system,which is different from the traditional three-phase system.Ignoring the characteristics of multiphase motor,the control strategies apply those of three-phase drivers,resulting in increase of harmonic current and low performance.In this paper,the mathematic model of dual three-phase motor is proposed and vector space decouple is apply to realize multi-dimensional current control.Simulations and experimental results verify the method.
出处
《船电技术》
2010年第8期1-3,15,共4页
Marine Electric & Electronic Engineering
关键词
双三相电机
数学模型
矢量控制
矢量空间解耦
dual three phase motor
mathematic model
vector control
vector space decouple