| 引用本文: | 陈福锋,杨 阳,宋国兵,等.单端量行波保护在中压柔性直流配电网的适应性分析[J].电力系统保护与控制,2016,44(22):50-55. |
| CHEN Fufeng,YANG Yang,SONG Guobing,et al.Adaptability analysis of single terminal traveling wave protection in mid-voltage DC distribution based on VSC[J].Power System Protection and Control,2016,44(22):50-55 |
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| 单端量行波保护在中压柔性直流配电网的适应性分析 |
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陈福锋1,2,杨 阳3,4,宋国兵3,王玉婷1,2,褚 旭3,罗 娟3,刘珮瑶3
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(1.国电南京自动化股份有限公司，江苏 南京 210032;2.南京国电南自电网自动化有限公司，江苏 南京 211153;
3..西安交通大学电气学院，陕西 西安710049;4.国网苏州供电公司，江苏 苏州 215004)
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| 摘要: |
| 为了研究单端量行波保护原理在中压柔性直流配电网的适应性，首先通过对单端量行波保护的原理分析，得出其最佳应用条件。结合柔性直流配电线路的故障特征进行理论分析，从而得到行波保护在直流配电网中适应性的一般结论；然后搭建中压柔性直流配电网的电磁暂态模型并进行仿真，并与通过理论分析得到的结论进行了比较分析。研究结果表明，单端量行波保护能够适用于中压柔性直流配电线路的保护，且动作性能良好。仿真结果验证了理论分析的正确性。 |
| 关键词: 直流配电 柔性直流 行波保护 故障特征 适应性分析 |
| DOI：10.7667/PSPC160216 |
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| 基金项目:国家自然科学基金项目(No.51477131) |
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| Adaptability analysis of single terminal traveling wave protection in mid-voltage DC distribution based on VSC |
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CHEN Fufeng1,2,YANG Yang3,4,SONG Guobing3,WANG Yuting1,2,CHU Xu3,LUO Juan3,LIU Peiyao3
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(1. Guodian Nanjing Automation Co., Ltd., Nanjing 210032, China; ;2. Nanjing SAC Power Grid Automation Co., Ltd.,
Nanjing 211153, China; ;3. School of Electrical Engineering, Xi’an Jiaotong University, Xi’an 710049, China;
;4. State Grid Suzhou Power Supply Company, Suzhou 215004, China)
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| Abstract: |
| For studying the adaptability of single terminal traveling wave protection in mid-voltage DC distribution based on VSC (voltage sourced converter), firstly the best working condition is obtained by analyzing the principle of singe terminal traveling wave protection, the general protection adaptability conclusion is reached by theoretical analysis based on the condition and the fault characteristics of DC distribution lines. Then, the electrical-magnetic model of DC distribution network is established and simulated, and the simulation results are compared with theoretical analysis results. The research shows that the single-terminal traveling wave protection can apply to VSC-based mid-voltage DC distribution line with good performance. The correctness of theoretical analysis is verified by simulation results. This work is supported by National Natural Science Foundation of China (No. 51477131). |
| Key words: DC distribution VSC traveling wave protection fault characteristics adaptability analysis |
