Distribution Feeder Loss Reduction with the Application of Fuzzy Algorithm

• Main Authors: YU,GYNE JONG, 余俊仲
• Other Authors: LIN,WHEI MIN
• Format: Others
• Language: zh-TW
• Published: 1996
• Online Access: http://ndltd.ncl.edu.tw/handle/46480233433883259813

碩士 === 國立中山大學 === 電機工程研究所 === 84 === Feeder load unbalance is one of the prime reasons to cause line losses in the distribution system.To enhance the operati- onal efficiency and reduce cost,effective methods are required to resolve. In this thesis , Fuzzy algorithm technique is developed for distribution network reconfigurations to minimize feeder losses. Two membership functions were defined for tie-switch selection and another two membership functions were developed for the optimal sectionalizing switch selection. Through the "set" operations of all the membership functions, the optimal on-off switch pairs can be determined.In addition,a trans- former management algorithm based on the linear programming was also developed for the distribution system. Linear progra- mming will mix up various load types according to an optimized proportion to increase transformer utilization factor and reduce system losses. One system of the Taipower company and another five selected examples were choosen for tests in this thesis. It can be shown that the fuzzy algorithm is effective enough to obtain optimal or near-optimal solutions for distribution feeder reconfigurations and linear programming method performs satis- factorily for transformer load management to reduce system losses.