Study on lightning transient behavior of photovoltaic installations

Author(s): Yaowu Wanga,*, Ximei Yaob , Shiqi Taoa, Xiaoqing Zhanga, Yanhua Lina ,
Mengmeng Suaa
a School of Electrical Engineering, Beijing Jiaotong University, Beijing 100044, China
b China Association for Standardization, Beijing 100048, China
International Journal of Smart Grid and Clean Energy, vol. 9, no. 2, March 2020: pp. 390-396
ISSN: 2315-4462 (Print)
ISSN: 2373-3594 (Online)
Digital Object Identifier: 10.12720/sgce.9.2.390-396

Abstract: Photovoltaic (PV) system is easy getting stroke for its outdoor characteristics and defendless protective measures. To provide the quantify basis for PV lightning protection formulation, a lightning transient modeling method is presented. With the PV lightning transient model, the lightning transient response that includes the currents on the branches and the potentials at the nodes of PV frame structure could be calculated. The simulated results reveal that the positions of the striking node and the structure of frame system have pronounced influence to the transient responses. The flowing currents on the frame branches closing to the striking node are significantly higher than distant ones. Meanwhile, the transient potential distribution on supporting frame work has an initial distortion and then tends to approximate equalization.

Keywords: photovoltaic, lightning transient, framework, lightning protection
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