| 计及逆变回馈装置间歇工作制的城轨供电计算 |
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| 引用本文： | 刘炜,李由,张戬,张浩,张岩.计及逆变回馈装置间歇工作制的城轨供电计算[J].西南交通大学学报,2022,57(2):384-391. |
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| 作者姓名： | 刘炜 李由 张戬 张浩 张岩 |
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| 作者单位： | 1.西南交通大学电气工程学院, 四川 成都6117562.新风光电子科技股份有限公司, 山东 济宁 272500 |
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| 基金项目： | 国家自然科学基金(51607148)； |
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| 摘 要： | 逆变回馈装置在实际运行中采用间歇工作制，当采用供电计算确定逆变回馈装置的选址和容量设计时，必须考虑逆变回馈装置的工作特性模型. 为此，提出了一种考虑逆变回馈装置间歇工作制的城市轨道交直流供电计算算法. 该算法基于逆变回馈装置的功率提出了逆变回馈装置负荷过程的动态调整策略，并实现其状态切换；从主变电所统计整条线路的全日能耗，分析不同逆变回馈装置启动电压、整流机组空载电压和列车发车对数对城市轨道供电系统能耗的影响. 本文算法与实际工程中的逆变回馈装置负荷过程更加吻合. 以实际地铁工程为例对线路进行了仿真，仿真结果表明:逆变回馈装置的启动电压会影响系统的节能效果；投入逆变回馈装置并选取合适的启动电压对供电系统具有明显的节能效果，相比不安装逆变回馈装置的系统可节省12.23%的能耗；当整流机组空载电压较高，或当发车对数稀少时，适当降低逆变回馈装置的启动电压可以获得更佳的节能效果.
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| 关 键 词： | 城市轨道 逆变回馈装置 交直流潮流计算 间歇工作制 节能效果 |
| 收稿时间： | 2020-09-02 |
Calculation of Urban Rail AC/DC Power Supply with Intermittent Duty of Inverter Feedback Devices |
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| LIU Wei,LI You,ZHANG Jian,ZHANG Hao,ZHANG Yan.Calculation of Urban Rail AC/DC Power Supply with Intermittent Duty of Inverter Feedback Devices[J].Journal of Southwest Jiaotong University,2022,57(2):384-391. |
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| Authors: | LIU Wei LI You ZHANG Jian ZHANG Hao ZHANG Yan |
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| Affiliation: | 1.School of Electrical Engineering, Southwest Jiaotong University, Chengdu 611756, China2.Wind Sun Science & Techo- nology Co., Ltd., Jining 272500, China |
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| Abstract: | In practical applications, inverter feedback devices work in intermittent duty, and its working characteristic model must be considered when determining its location and capacity design in the power supply calculation. Thus, an AC/DC alternating iterative power flow calculation algorithm with intermittent duty of inverter feedback devices is proposed for urban rail transit. A power-based dynamic adjustment strategy is proposed to realize state transition in the operation of inverter feedback devices. The full-day energy consumption is calculated for the entire line starting from the main substation, and the influences of the starting voltage of different inverter feedback devices, the no-load voltage of the rectifier unit and the number of train departures affect are analyzed. The whole line of an actual metro project is simulated and the simulation results prove that the proposed algorithm is more consistent with the load process of the inverter feedback devices in actual project. The statistical results show that the starting voltage of the inverter feedback devices will affect the system energy saving, and a proper starting voltage have a significantly favorable effect on the energy saving of the power supply system equipped with inverter feedback devices, which can save 12.23% of the energy consumption compared with the system without inverter feedback devices; when the no-load voltage of the rectifier is high, or when there are few trains, the starting voltage of the inverter feedback device should be reduced accordingly to obtain a better energy saving effect. |
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