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1.中车唐山机车车辆有限公司,河北 唐山 064000
2.大连交通大学 自动化与电气工程学院,辽宁 大连;116028
韩国鹏(1988—),男,博士,高级工程师,主要从事轨道车辆氢能混合动力系统方面的研究;E-mail: hanguopeng22@126.com
纸质出版日期:2023-05-10,
收稿日期:2023-02-22,
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韩国鹏, 杨雨泽, 赵丽丽, 等. 基于DC/DC串联结构的氢动力系统控制策略及运行特性研究[J]. 机车电传动, 2023(3): 40-49.
HAN Guopeng, YANG Yuze, ZHAO Lili, et al. Research on control strategy and operational characteristics of hydrogen power system based on DC/DC series structure[J]. Electric Drive for Locomotives,2023(3): 40-49.
韩国鹏, 杨雨泽, 赵丽丽, 等. 基于DC/DC串联结构的氢动力系统控制策略及运行特性研究[J]. 机车电传动, 2023(3): 40-49. DOI: 10.13890/j.issn.1000-128X.2023.03.005.
HAN Guopeng, YANG Yuze, ZHAO Lili, et al. Research on control strategy and operational characteristics of hydrogen power system based on DC/DC series structure[J]. Electric Drive for Locomotives,2023(3): 40-49. DOI: 10.13890/j.issn.1000-128X.2023.03.005.
直流式轨道车辆采用氢燃料电池动力系统供电时,可通过2级DC/DC系统升压满足其高母线电压要求。为了探索此类系统动态运行特性,文章研究以100 kW级燃料电池串联2级DC/DC系统,再采用动力电池直挂母线的方式搭建轨道车辆用氢动力供电系统,提出了系统控制策略并搭建测试平台,基于有轨电车线路开展了系统的动态运行试验。试验结果表明,设置动力电池初始荷电状态在其允许工作范围40%~60%时,完成全线路运行后均逼近于目标值45%;在牵引和制动阶段,最大母线电压波动范围在-4.5%~3.4%。混合动力系统在燃料电池功率变化平缓的前提下能快速响应车辆在不同运行模式下的功率需求,能量控制策略能根据系统内不同故障类型执行预定故障处理动作,2级DC/DC系统之间存在较大的低频电流纹波,但电压纹波小于1.86%,混合动力系统运行状态平稳。
To meet the power requirements of DC-powered rail vehicles equipped with hydrogen fuel cell power systems operating at high busbar voltage conditions
the application of two-stage DC/DC converters in series can be adopted for voltage boosting. In order to explore the dynamic operational characteristics in this application
a system control strategy by building a hydrogen-powered system for rail vehicles was proposed
which was composed of 100 kW fuel cells in series with two-stage DC/DC converters
with the power cells directly connected to the busbar. Revealed in the dynamic operational test carried out with the circuit system of trams on a test bench specially established. The results show that the state of charge (SOC) of the power battery consistently approaches 45% when the initial value is preset within 40%~60% of its allowable working range
and the maximum busbar voltage fluctuations during traction and braking range between -4.5% and 3.4%. Moreover
the hybrid power system demonstrates a quick response to the varying power demands in different vehicle operating modes while the power of fuel cells varies gently. Additionally
the energy control strategy allows for preset system troubleshooting actions in response to different fault types. Despite the presence of large low-frequency current ripples between the two-stage DC/DC converters
the voltage ripple observed during testing is less than 1.86%. As a result
the hybrid power system operates smoothly throughout the whole test.
2级DC/DC氢燃料电池混合动力动态运行
two-stage DC/DC convertershydrogen fuel cellhybrid powerdynamic operation
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