Adaptive Auto-Reclosing of DC Line Based on Characteristic Signal Injection With FB-MMC

被引：0
|
作者：
Song G. [1 ]
Wang T. [1 ]
Zhang C. [1 ]
Wu L. [1 ]
机构：
[1] School of Electrical Engineering, Xi'an Jiaotong University, Xi'an, 710049, Shaanxi Province
来源：
Dianwang Jishu/Power System Technology | 2019年 / 43卷 / 01期
关键词：
Active injection; DC line fault; Fault identification; Full-bridge modular multilevel converter (FB-MMC);
D O I：
10.13335/j.1000-3673.pst.2018.1123
中图分类号：
学科分类号：
摘要：
Electrical coupling between transmission lines is the premise of single-/three-phase adaptive reclosing. Considering the relationship between DC transmission lines in steady state, this paper presents a method injecting characteristic signal to a faulty DC line to identify fault property, making full use of the control characteristics of full bridge based converter without circuit breaker. The problem of non-selective restart of current HVDC transmission is solved. In this paper, the selection principle of characteristic signals, and the principle and regulation of the characteristic signal are analyzed in detail. Then, a characteristic signal is injected into the DC faulty line according to additional control strategy and the fault property is discriminated based on the propagation characteristics of the faulty line and the healthy line. Simulation results verify validity of the method distinguishing the fault properties by injecting characteristic signal using full bridge based converter. © 2019, Power System Technology Press. All right reserved.
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页码：149 / 156
页数：7
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共 20 条
  • [1] Sun X., Cao S., Bu G., Et al., Construction scheme of overhead line flexible HVDC grid, Power System Technology, 40, 3, pp. 678-682, (2016)
  • [2] Zhao C., Xu J., Li T., DC faults ride-through capability analysis of full-bridge MMC-MTDC system, Scientia Sinica(Technologica), 43, 1, pp. 106-114, (2013)
  • [3] Meng X., Li K., Wang Z., Et al., A hybrid MMC topology and its DC fault ride-through capability analysis when applied to MTDC system, Automation of Electric Power Systems, 39, 24, pp. 72-79, (2015)
  • [4] He J., Huang W., Li H., Et al., FBMMC DC fault ride-through mechanism and fault clearing strategy, Electric Power Automation Equipment, 37, 10, pp. 1-7, (2017)
  • [5] Liu X., Wu J., Guo N., Et al., Analysis of submodule capacitor voltage caused by DC pole-to-pole fault in FBMMC HVDC system, High Voltage Apparatus, 52, 5, pp. 101-108, (2016)
  • [6] Han L., Bai X., Chen B., Et al., Control and protection system design of Zhangbei ±500kV converter station in VSC-HVDC power grid, Electric Power Construction, 38, 3, pp. 42-47, (2017)
  • [7] Zhang J., Xiang W., Lin W., Et al., DC fault protection of VSC-HVDC grid based on hybrid MMC and DC switch, Electric Power Construction, 38, 8, pp. 52-58, (2017)
  • [8] Li B., He J., Li Y., Et al., Novel restart scheme of DC fault for flexible DC transmission system, Automation of Electric Power Systems, 41, 12, (2017)
  • [9] Wang Y., Liu J., An enhanced MMC-HVDC topology and system recovery strategy for DC fault protection, Power System Technology, 39, 8, pp. 2312-2319, (2015)
  • [10] Wang S., Bi T., Li W., Et al., A fast bipolar permanent fault identification approach for MMC-MTDC lines, Renewable Energy Resources, 35, 1, pp. 43-49, (2017)
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