Series arc detection and protection on the DC side of string-type PVs

被引：0
|
作者：
Zhao T. [1 ]
Meng J. [1 ]
Song Y. [2 ]
Xie X. [1 ]
Zhang M. [1 ]
机构：
[1] Qinhuangdao Power Supply Company, State Grid Jibei Electric Power Company Limited, Qinhuangdao
[2] Key Lab of Power Electronics for Energy Conservation and Motor Drive of Hebei Province, Qinhuangdao
来源：
Dianli Xitong Baohu yu Kongzhi/Power System Protection and Control | 2020年 / 48卷 / 20期
基金：
中国国家自然科学基金;
关键词：
DC arc; Protection criteria; PV generation; Sample entropy; Standard deviation;
D O I：
10.19783/j.cnki.pspc.191474
中图分类号：
学科分类号：
摘要：
A series arc occurring on the DC side of a PV is the preliminary indication of fire provoked from PVs. For DC arc status and fault problems, this paper contributes a DC series arc detection and protection scheme for string-type PVs implemented with a grid-connected inverter. The scheme employs a high frequency signal of the arc as the fault characteristic that is obtained from the filter capacitor in the PV string terminals of the inverter. The detecting algorithm is established according to the sample entropy and the standard deviation of the arc signal. 2-stage protection criteria and a reclosing strategy are proposed to improve reliability, and to satisfy the sample rate of the processor in the inverter. In line with the constitution of the circuit and operating principle of the inverters, a modification strategy is proposed to fulfill arc protection action. A platform is established for PV series arc testing. The proposed method can achieve reliable detection and protection, and the effectiveness of the method is verified for many cases. © 2020, Power System Protection and Control Press. All right reserved.
引用
收藏
页码：74 / 82
页数：8
相关论文
共 32 条
  • [1] LIU Xinyuan, HE Caihong, CHENG Xueting, Et al., Day-ahead and intra-day scheduling strategy of concentrated solar power station with thermal energy storage and wind farm considering coordination between generation and load, Electic Power, pp. 1-13
  • [2] SHI Shuo, ZHUANG Xiaoru, XU Xinhai, Numerical simulation of convection heat transfer characteristics of supercritical carbon dioxide in a concentrating solar power receiver, Thermal Power Generation, 49, 10, pp. 87-92, (2020)
  • [3] NIU Ruijie, GUO Junwen, LI Xiaobo, Et al., Energy storage control strategy of wind-photovoltaic-storage hybrid system, Thermal Power Generation, 49, 8, pp. 150-155, (2020)
  • [4] JIANG Li, XU Mingzhu, ZHOU Yadi, Optimal configuration of hydro-solar complementary distributed power systems in cities, Huadian Technology, 42, 2, pp. 58-62, (2020)
  • [5] ZHANG Jinping, WANG Ningbo, HUANG Rong, Et al., Review on high permeability photovoltaic (PV) participation in power system frequency modulation, Power System Protection and Control, 47, 13, pp. 171-186, (2019)
  • [6] ZHANG Juliang, GAO Zhiqiang, DONG Quanzhi, Et al., Study on the suppression of common mode voltage interference in photovoltaic power generation, Power System Protection and Control, 47, 14, pp. 102-108, (2019)
  • [7] CHEN Peihua, ZHAO Huiru, LI Nana, Influence and countermeasures of grid connection of distributed photovoltaic power supply, Electrical Engineering, 1, pp. 125-127, (2015)
  • [8] SUN Min, YU Yuan, ZENG Wei, Et al., Parallel optimal configuration of distributed photovoltaic power distribution network under active management, Electric Power Automation Equipment, 39, 3, pp. 169-174, (2019)
  • [9] LIU Y, MELIOPOULOS A P, SUN L, Et al., Protection and control of microgrids using dynamic state estimation, Protection and Control of Modern Power Systems, 3, 4, pp. 340-352, (2018)
  • [10] LI Wencai, PENG Cheng, Study on fault analysis and protection of distributed photovoltaic power supply integrated into distribution network, Mechanical & Electrical Engineering Technology, 48, 6, pp. 186-188, (2019)
1234