Analysis on the impacts of distribution systems with large-scale grid-connected photovoltaic based on DIgSILENT

Author

Jinli Zhao ; Zhelin Liu ; Peng Li ; Kai Yuan ; Xiaoyun Huang ; Hongyuan Huang ; Xuzhu Dong ; Li Yu ; Xianbo Ke ; Jili Wang

Author_Institution

Key Lab. of Smart Grid of Minist. of Educ., Tianjin Univ. - China, Tianjin, China

fYear

2014

fDate

23-26 Sept. 2014

Firstpage

1215

Lastpage

1219

Abstract

When photovoltaic (PV) systems are connected to the traditional distribution system, the distribution of power flow and characteristics of the systems are changed. The integration of large-scale PV systems even affects the normal operation of distribution systems, thus the analysis of the characteristics of the distribution networks with large-scale grid-connected PVs is therefore essential. This paper analyzes the impacts of large-scale PV systems on the voltage, grid losses and short-circuit current of distribution networks based on the simulation tool DIgSILENT/PowerFactory, and an actual distribution network is utilized as the test case. According to the results, some improvement measures are suggested to lay the foundation for the planning and operation of distribution systems.

Keywords

electricity supply industry; load flow; photovoltaic power systems; power distribution planning; power distribution reliability; power grids; short-circuit currents; DIgSILENT; distribution network planning; distribution system impact analysis; large-scale grid-connected PV system; photovoltaic grid losses; power factory; power flow distribution; short-circuit current; voltage losses; Abstracts; Load flow; Substations; DIgSILENT; distribution system; grid losses; large-scale photovoltaic generation system; system voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electricity Distribution (CICED), 2014 China International Conference on

Conference_Location

Shenzhen

Type

conf

DOI

10.1109/CICED.2014.6991900

Filename

6991900