Study of Photovoltaic Systems Impact on Voltage and Current of Distribution Network

• Main Authors: J. M.Cheng, 鄭哲民
• Other Authors: Jiann-Fuh Chen
• Format: Others
• Language: zh-TW
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/22697190319558383362

碩士 === 國立成功大學 === 電機工程學系專班 === 98 === The impact of photovoltaic (PV) systems affects power quality of distribution network, especially fault current and voltage variation. To prevent the impact on power quality depends on analysis before DG connected. Study of the relationship between voltage variation, fault current, load, capacity of PV, line length and impedance is by Matlab/Simulink. The results of study can be roughly described (1) while the capacity of PV is within 5kWp in the linked house, the voltage drop along the line of house next to house can be ignored, (2) the ratio of PV output to original device is 0.77, and (3) the effective operation time base on full output is only 4-5 hours in all day. According foregoing of the discussions, the purpose of this study provides result for engineers and customers reference to plan distribution system.