再生制动工况下牵引变流器系统的稳定性分析
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TM46;TN922.7

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湖南省自然科学基金(2017JJ2265);湖南省电动交通与智能配网工程技术研究中心开放基金(2015TP2001);湖南省教育厅科学研究项目(14C0022);分布式电推进飞行器控制技术湖南省重点实验室资助(2020TP1017)


The stability analysis of traction converter systems under regenerative braking conditions
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    摘要:

    随着交直交传动方式在高速列车上的普及,接触网电压波动甚至失稳现象出现频率日趋上升,影响了设备安全及正常的运行。研究发现高速列车运行在再生制动模式下时对电网稳定性有很大影响,为实现牵引变流器再生制动能量回收,同时确保电网与牵引变流器的级联系统稳定运行,该文在非理想电网情况下,通过阻抗分析法推导产生稳定性问题的原因,并在Simplorer、Maxwell、RMxprt、Matlab/Simulink仿真环境下进行联合仿真验证,结果表明:改善参数可以有效抑制级联系统的振荡问题,提高列车运行可靠性。

    Abstract:

    In recent years,the ACDCAC transmission methods have been deployed ubiquitously in the highspeed trains, the grid voltage fluctuation and even instability becomes more frequently which willaffect the safe operations of these equipment. The previous study found that the stability of the power grid will be sufficiently impacted when highspeed trains are in the regenerative braking mode.In order to realize the regenerative braking energy recovery of the traction converter, and to ensure the stable operation of the cascade system between the power grid and the traction converter.In the nonideal power grids, the cause of the stability problem is derived based on the impedance analysis in this paper. The joint simulation verification is conducted among the Simperer, Maxwell, RMxprt, Matlab/Simulink platforms. The results show that improved parameters can overtly reduce the oscillation in the cascade system, and hence enhance the train operation reliability.

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张承烨,汤赐,曾云龙,等.再生制动工况下牵引变流器系统的稳定性分析[J].电力科学与技术学报,2021,36(4):141-149.
Zhang Chengye, Tang Ci, Zeng Yunlong, et al. The stability analysis of traction converter systems under regenerative braking conditions[J]. Journal of Electric Power Science and Technology,2021,36(4):141-149.

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  • 在线发布日期: 2021-08-28
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