| 城市配电环网中的高温超导轻型直流联络线方案研究 |
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| 引用本文： | 周小光,蒋晓华,张祥龙. 城市配电环网中的高温超导轻型直流联络线方案研究[J]. 电源学报, 2015, 13(1): 14-20 |
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| 作者姓名： | 周小光 蒋晓华 张祥龙 |
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| 作者单位： | 清华大学电机工程与应用电子技术系,清华大学电机工程与应用电子技术系,国网北京经济技术研究院 |
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| 摘 要： | 为了阐明在城市配网中综合应用高温超导直流电缆与轻型直流输电技术构成闭环运行模式的方案的可行性及优势,建立了基于电力系统计算机辅助设计/电磁暂态仿真程序PSCAD/EMTDC的系统仿真模型,并在此基础上仿真对于城市配网稳态与暂态特性的影响进行仿真,其中包括110 k V母线的电压幅值变化和110 k V变电站负荷的功率传输特性等。仿真结果表明,该方案不仅能够增加110 k V线路的供电冗余度,提升变电站110 k V母线的电压幅值,还能够在交流供电线路发生故障、故障被切除和系统恢复供电这一动态过程中,降低110 k V母线电压和负荷功率的振荡幅度和振荡时间。
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| 关 键 词： | 环网 高温超导电缆 变电站 轻型直流 |
| 收稿时间： | 2014-09-27 |
| 修稿时间： | 2015-01-04 |
Research on HTS DC Cables to Urban Distribution Closed-loop Networks |
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| ZHOU Xiaoguang,JIANG Xiaohua and ZHANG Xianglong. Research on HTS DC Cables to Urban Distribution Closed-loop Networks[J]. Journal of Power Supply, 2015, 13(1): 14-20 |
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| Authors: | ZHOU Xiaoguang JIANG Xiaohua ZHANG Xianglong |
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| Affiliation: | Department of Electrical Engineering, Tsinghua University,Department of Electrical Engineering, Tsinghua University,State Power Economic Research Institute |
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| Abstract: | In order to illustrates feasibility and advantages of a scheme which comprehensively uses the high temperature superconducting(HTS) DC cables and the VSC-HVDC technology, a PSCAD/EMTDC simulation model is built to analyze the improved steady and transient state performances of the urban distribution network that is closed-looped by the HTS cables through VSCs. The performances include the 110 kV distributions voltage amplitude and the loads power characteristic. Simulation results show that the scheme can increase the redundancy of the 110 kV power line, improve the 110 kV bus voltage amplitude, and am decrease the oscillation amplitude and time of the 110 kV bus voltage and load power during a fault occurring and recovering. |
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| Keywords: | closed-loop network HTS cable substation VSC-HVDC |
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