双三相永磁同步电机全调制比范围空间矢量脉宽调制

发布时间：2017-12-28 01:33

  本文关键词：双三相永磁同步电机全调制比范围空间矢量脉宽调制　出处：《电工技术学报》2015年10期 　论文类型：期刊论文

  更多相关文章： 相移°双三相电机 六相电压源逆变器 脉宽调制 中间矢量算法 过调制

【摘要】：针对六相电压源逆变器供电的相移30°双三相电机,为提高母线电压利用率,并减小系统损耗和转矩脉动,提出一种新型的全调制比范围空间矢量脉宽调制(SVPWM)策略。该策略根据基波调制系数,将调制区域分为线性调制区和过调制区,在线性调制区将正弦调制区和非正弦调制区的调制算法统一为基于中间矢量算法,该算法计算简单且大幅度的减少在非正弦调制区所注入的6k±1(k=1,3,5,…)次谐波。在过调制区将三相过调制算法推广到六相系统并进行改进,过调制Ⅰ区通过算法改进使参考电压矢量幅值与调制系数成线性关系便于算法的实现;过调制Ⅱ区通过对相位进行修正,减小了相电压的畸变。仿真分析和实验结果验证了算法的有效性和可行性。
[Abstract]:Aiming at the phase shifted 30 degree double three-phase motor fed by six phase voltage source inverter, a new full modulation ratio space vector pulse width modulation (SVPWM) strategy is proposed to improve bus voltage utilization and reduce system losses and torque ripple. The strategy according to the fundamental modulation coefficient, the modulation area is divided into linear modulation and over modulation, the linear modulation region will modulation sine modulation region and non sine modulation region unification algorithm based on intermediate vector, the algorithm is simple and greatly reduced in non sine modulation region of the injected 6K + 1 (k=1,3,5,... ) subharmonic. In the over modulation over modulation algorithm is extended to three-phase and six phase system was improved by improving the algorithm of modulation to the reference voltage vector amplitude modulation coefficient and realize linear relationship for the algorithm; over modulation zone by analyzing the phase correction, reduces the distortion of phase voltage. The simulation and experimental results verify the effectiveness and feasibility of the algorithm.
【作者单位】： 哈尔滨工业大学电气工程及自动化学院;
【基金】：国家自然科学基金面上项目(51177026) 中央高校基本科研业务费专项资金(HIT.NSRIF.2014013)资助
【分类号】：TM341
【正文快照】： 1引言 正,减小了相电压的畸变。仿真分析和实验结果验多相电机驱动系统具d裂勾笊袷涑，

本文编号：1344056