飞轮储能装置在轨道交通中的应用研究

doi:10.19799/j.cnki.2095-4239.2024.0214

摘要/Abstract

摘要：

城市轨道交通中列车频繁启动制动，制动能量大，网压波动大，有些线路存在钢轨电位严重的问题。飞轮储能装置具有功率大、响应速度快、寿命长等特点，可以对再生制动能量在直流侧进行即收即用，节能效果好，能稳定网压波动。由于飞轮储能装置的接入可以实现多点回流、缩短电流回流路径，故对钢轨电位也有改善效果。文章分别就既有线路和新建线路，考虑牵引所空间限制、储能装置平均功率峰值、节能效果等因素，说明了飞轮储能装置的容量配置方法并针对实际案例进行容量配置说明。为使飞轮储能装置的控制策略灵活应对地铁线路的复杂工况，设置节能、稳压、网压支撑、钢轨电位治理、应急电源五种工作模式。通过飞轮储能装置在实际工程的应用案例验证了飞轮储能装置具有良好的稳压效果，平均节能率为11.36%~17.28%，全功率响应频次为31次/h，且经试验验证飞轮储能装置具有应急电源功能。

关键词: 城市轨道交通, 飞轮储能装置, 容量配置, 控制策略

Abstract:

In urban rail transit, trains frequently start and brake, resulting in high braking energy and large voltage fluctuations. Some lines experience serious problems with rail potential. The wheel energy storage device has high power, fast response speed, and long service life. It can collect and use regenerative braking energy on the DC side, with a good energy-saving effect and stable grid voltage fluctuations. Because of the connection of the flywheel energy storage device, it can achieve multi-point reflux and shorten the current reflux path, thus improving the potential of the steel rail. This article explains the capacity configuration method of flywheel energy storage devices for existing and new lines, considering factors such as space limitations in traction stations, the average peak power of energy storage devices, and energy-saving effects, and provides capacity configuration explanations for actual cases. To flexibly respond to the complex working conditions of subway lines with the control strategy of flywheel energy storage devices, five working modes are set up: energy conservation, voltage stabilization, grid voltage support, rail potential management, and emergency power supply. The application case of the flywheel energy storage device in engineering has verified that the flywheel energy storage device has a good voltage stabilization effect, with an average energy saving rate of 11.36%—17.28% and a full power response frequency of 31 times/h. Furthermore, the experimental verification shows that the flywheel energy storage device has an emergency power supply function.

Key words: urban rail transit, flywheel energy storage device, capacity configuration, control strategy

中图分类号:

李玉光, 刘翔, 梁艳召, 刘双振. 飞轮储能装置在轨道交通中的应用研究[J]. 储能科学与技术, 2024, 13(8): 2679-2686.

Yuguang LI, Xiang LIU, Yanzhao LIANG, Shuangzhen LIU. Research on the application of flywheel energy storage device in rail transit[J]. Energy Storage Science and Technology, 2024, 13(8): 2679-2686.

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