Study on Simplified Three-Phase Power flow Calculation via Integrated Models of Distribution Transformers and their Loads and Distributed Energy Resources

• Main Author: 顏縉幃
• Other Authors: 黃維澤
• Format: Others
• Language: zh-TW
• Published: 2012
• Online Access: http://ndltd.ncl.edu.tw/handle/14035689271688057371

碩士 === 建國科技大學 === 電機工程系暨研究所 === 100 === This thesis proposes the integrated models of distribution transformers and their loads and distributed energy resources for solving three-phase power flow in unbalanced distribution systems. First of all, in order to realize the concept, theory, applicability, advantages and disadvantages of integrated models of distribution transformers and their loads, the correlative papers were studied and discussed thoroughly. Next, based on the presented integrated models, the new integrated models, which considering the winding connections of distribution transformers and their loads and distributed energy resources are derived in this thesis. After rigorously proofed the accuracy of these models, the proposed models are applied to calculate the individual phase loads and power generations at each high voltage bus for solving the three-phase power flow. Finally, the proposed models are applied to a sample distribution system for solving three-phase power flow. The outcomes demonstrated that the proposed models can reduce the nodes of system and furthermore simplified the system structure; therefore, the convergence problem of power flow can be improved.