Impact Analysis of Photovoltaic Generation System Incorporate with Distribution Systems

• Main Authors: Chu-Hung Chou, 周柜宏
• Other Authors: Mei-Sung Kang
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/01595825731190488932

碩士 === 高苑科技大學 === 電機工程研究所 === 101 === For the penetration of PV power generation into distribution systems will be increased dramatically in the future, the impact analysis of distribution feeders is important for avoiding voltage dramatic fluctuation and mitigating power flow overloading due to large amounts photovoltaic (PV) power generation incorporate with distribution systems. In this thesis, a distribution system simulator (DSS) is applied for evaluation the amount of PV power generation in various scenarios condition so that the maximum amount PV power generation incorporate with distribution systems under non-violation constrain can be obtained. To incorporate PV power generation in maximum amount, a Taipower distribution feeder with large PV installation is selected for computer simulation. Daily loading unbalance is determined by analyzing PV power generation recorded by the SCADA system and by constructing daily power load profiles based on distribution automation system (DAS) data. The injection real power of PV system and the line impedance of distribution feeders are used to simulate the voltage fluctuation in the point of common coupling (PCC) of test feeder. Computer simulations showed that the maximum value of PV power generation and fault current can be obtained in distribution feeders with large capacity of PV installation by executing DSS according to the variation of solar energy and power loading of study feeders.