基于离散状态事件驱动仿真方法的牵引变流器能量平衡控制策略

鞠佳禾; 赵争鸣; 施博辰; 朱义诚; 虞竹珺; 罗云飞; 张志学; 胡斯登; 何湘宁

doi:10.16511/j.cnki.qhdxxb.2020.25.021

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清华大学学报（自然科学版） ›› 2020, Vol. 60 ›› Issue (9) : 763-772. DOI: 10.16511/j.cnki.qhdxxb.2020.25.021

电机工程

基于离散状态事件驱动仿真方法的牵引变流器能量平衡控制策略

鞠佳禾¹, 赵争鸣¹, 施博辰¹, 朱义诚¹, 虞竹珺¹, 罗云飞², 张志学², 胡斯登³, 何湘宁³

作者信息 +

Energy balancing control for locomotive converter based on a discrete state event driven method

JU Jiahe¹, ZHAO Zhengming¹, SHI Bochen¹, ZHU Yicheng¹, YU Zhujun¹, LUO Yunfei², ZHANG Zhixue², HU Sideng³, HE Xiangning³

Author information +

文章历史 +

摘要

目前，面向牵引的电力电子变换器应用广泛，但是这类大功率装置对可靠性的要求较高，并且需要避免器件应力导致的过压问题，因而对直流母线电压的稳定性提出了很高的要求。由于牵引变流器的工况随着机车运行情况的变化而变化，因此其单向整流器的控制策略应具有可靠的高性能，以保证直流母线电压的抗扰性和随动性。该文提出针对牵引变流器的单相整流器能量平衡控制策略，该策略能够提高单相整流器动态性能。在研究控制策略的过程中，需要进行多组参数的对比测试以及多种工况的仿真，因此需要一种高效、高精度、收敛性好的仿真工具。该文利用离散状态事件驱动（discrete state event driven，DSED）仿真方法，针对牵引变流器搭建了数值仿真平台，在同平台实现了多时间尺度（系统级动态过程和器件级瞬态过程）的高效、准确仿真评估。基于DSED牵引变流器仿真平台，将单相能量平衡控制与经典PI控制方法进行了对比。实验结果表明：能量平衡控制在各类动态过程中均表现出响应速度快，有效抑制直流母线波动的特点。同时，结合能量平衡控制与模组电容连接母排结构，能够明显减小关断电应力和器件使用所需留出的余量。

Abstract

Traction-oriented power electronic converters that are widely used in electric locomotives need to be very reliable and to avoid over-voltage problems caused by device stresses, so such devices need very stable DC bus voltages. Since the traction converter parameters are functions of the locomotive operating conditions, the single-phase rectifier control strategy must be very reliable to ensure the DC bus voltage stability. This paper presents an energy balancing control strategy for a single-phase rectifier for a traction converter which improves the converter dynamics. The control strategy needs to be tested for many different parameters and working conditions. A discrete state event driven (DSED) simulation method was used here in a numerical simulation platform for the traction converter for efficient, accurate multiple time scale (system level dynamic processes and device level transient processes) simulations. The traction converter simulation platform was used to compare the single-phase energy balance control with traditional PI control. The energy balance control is fast and effectively suppresses the DC bus fluctuations for all kinds of dynamic processes. Combining the energy balance control with the bus structure optimization also significantly reduces the turn-off electric force and allowance for the device.

导出引用

鞠佳禾, 赵争鸣, 施博辰, 朱义诚, 虞竹珺, 罗云飞, 张志学, 胡斯登, 何湘宁. 基于离散状态事件驱动仿真方法的牵引变流器能量平衡控制策略[J]. 清华大学学报（自然科学版）. 2020, 60(9): 763-772 https://doi.org/10.16511/j.cnki.qhdxxb.2020.25.021

JU Jiahe, ZHAO Zhengming, SHI Bochen, ZHU Yicheng, YU Zhujun, LUO Yunfei, ZHANG Zhixue, HU Sideng, HE Xiangning. Energy balancing control for locomotive converter based on a discrete state event driven method[J]. Journal of Tsinghua University(Science and Technology). 2020, 60(9): 763-772 https://doi.org/10.16511/j.cnki.qhdxxb.2020.25.021

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基金

赵争鸣,教授,E-mail:zhaozm@tsinghua.edu.cn

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收稿日期	出版日期
2019-10-28	2020-09-15
发布日期
2020-07-04

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