| 高速动车组四象限双闭环控制参数设计与稳定性分析 |
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| 引用本文： | 王跃,付刚,胡景瑜,彭赟,张志学.高速动车组四象限双闭环控制参数设计与稳定性分析[J].机车电传动,2020(2):26-30,66. |
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| 作者姓名： | 王跃 付刚 胡景瑜 彭赟 张志学 |
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| 作者单位： | 中车株洲所电气技术与材料工程研究院,湖南 株洲 412001;动车组和机车牵引与控制国家重点实验室,湖南 株洲 412001;中车株洲所电气技术与材料工程研究院,湖南 株洲 412001 |
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| 摘 要： | 动车组牵引四象限变流器输出直流电压存在二倍工频波动、四象限电流含有较多等效开关频率的纹波,对电压和电流检测时常采用硬件滤波电路或数字滤波器进行信号调理,但滤波参数设计不合理会导致控制系统不稳定。为提高400 km/h高速动车组四象限变流器控制稳定性,首先介绍四象限变流器"电压-电流"双闭环控制参数设计原则;其次重点分析电压、电流采样通道叠加滤波环节对闭环控制稳定性的影响,揭示双闭环系统稳定的条件;最后,基于400 km/h高速动车组的仿真结果验证了理论分析的正确性和有效性。
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| 关 键 词： | 高速动车组 四象限变流器 双闭环控制 参数设计 滤波时间常数 积分时间常数 稳定性分析 仿真 |
Parameter Design and Stability Analysis of Double-Loop Control for High-speed EMU 4QS-Converter |
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| WANG Yue,FU Gang,HU Jingyu,PENG Yun,ZHANG Zhixue.Parameter Design and Stability Analysis of Double-Loop Control for High-speed EMU 4QS-Converter[J].Electric Drive For Locomotive,2020(2):26-30,66. |
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| Authors: | WANG Yue FU Gang HU Jingyu PENG Yun ZHANG Zhixue |
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| Institution: | (CRRC ZIC Research Institute of Electrical Technology&Material Engineering,Zhuzhou,Hunan 412001,China;State Key Laboratory for Traction and Control System of EMU and Locomotive,Zhuzhou,Hunan 412001,China) |
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| Abstract: | Double-grid-frequency fluctuation exists in DC-link voltage of EMU 4QS-converter whose grid-side current contains much ripple of equivalent switching frequency. RC circuit filters and digital filters were usually employed for signal conditioning of voltage and current. However, improper filter parameter will lead to unstable control. In order to improve control stability of 400 km/h high-speed EMU, firstly, the parameter design principle of DC-link voltage and current double-loop control for a 4QS-converter was introduced. Secondly, the effects of voltage and current signal conditioning filters on the stability of the double-loop control were analyzed, and the necessary conditions of system stable were revealed. Finally, simulation results based on 400 km/h high-speed EMU verifiedied the correctness and effectiveness of the theoretical analysis. |
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| Keywords: | high-speed EMU 4QS-converter double-loop control parameter design filter time constant integral time constant stability analysis simulation |
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