微特电机 ›› 2019, Vol. 47 ›› Issue (12): 60-64.

• 驱动控制 • 上一篇    下一篇

有轨电车永磁牵引系统PWM调制策略研究

路 瑶,张瑞峰,詹哲军,苑伟华,杨高兴,张巧娟   

  1. 中车永济电机有限公司,西安 710016
  • 收稿日期:2019-04-23 出版日期:2019-12-28 发布日期:2019-12-19
  • 基金资助:
    山西省重点研发计划重点项目(201603D111003)

Research on PWM Modulation Strategy of Permanent Magnet Traction System for Tramcar

LU Yao, ZHANG Rui-feng, ZHAN Zhe-jun, YUAN Wei-hua, YANG Gao-xing, ZHANG Qiao-juan   

  1. CRRC Yongji Electric Co., Ltd., Xi’an 710016, China
  • Received:2019-04-23 Online:2019-12-28 Published:2019-12-19

摘要: 有轨电车永磁牵引系统具有功率大、功率器件开关频率低的特点,为解决其不能全程异步调制、低次谐波大的问题,研究了一种基于中间60°同步调制的多模式PWM调制策略。有轨电车永磁牵引系统在应用矢量控制的基础上,通过采用多模式PWM调制策略,实现了全速度范围内从异步SPWM调制、同步SPWM调制、中间60°同步调制和方波调制之间的平滑过渡,输出电流畸变率小于18%,有效降低了电流谐波。现场实验结果表明,该方法具有良好的实用性和有效性。

关键词: 有轨电车, 永磁牵引系统, 矢量控制, 中间60°同步调制

Abstract: Permanent magnet traction system for tramcar has the characteristics of high power and low switching frequency. In order to solve the larger low-order harmonic and the problem that asynchronous modulation are not used in the full speed range, a multi-mode PWM modulation strategy based on central 60° synchronous modulation were adopted. Based on the vector vontrol, the permanent magnet traction system for tramcar has realized smooth transition of asynchronous SPWM modulation, synchronous SPWM modulation, central 60° synchronous modulation and square wave modulation in the full speed range by adopting a multi-mode PWM modulation strategy. The current distortion rate was less than 18%, effectively reducing the current harmonics. Field experiments showed that the multi-mode PWM modulation method has good practicability and effectiveness.

Key words: tramcar, permanent magnet traction system, vector control, central 60° modulation

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