Open AccessThe Research on Optimal Location and Sizing of Distributed Generation Considering Voltage Stability Index and Line Loss Reduction Rate
Author(s) -
Zhihui Li,
Yanli Zou,
Zheng Gao
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/782/3/032047
Subject(s) - sizing , reduction (mathematics) , matlab , computer science , power (physics) , index (typography) , grid , voltage , stability (learning theory) , ac power , sensitivity (control systems) , distributed generation , line (geometry) , mathematical optimization , power loss , control theory (sociology) , reliability engineering , electronic engineering , mathematics , engineering , electrical engineering , art , physics , geometry , control (management) , quantum mechanics , machine learning , artificial intelligence , world wide web , visual arts , operating system
The continuous growth of power demand poses new challenge to the efficiency of power system. Therefore, distributed generation (DG) is widely concerned because it can provide clean, reliable and economic power. However, the location and sizing of DG connected to the grid shall be properly selected. In this paper, the voltage stability index and the line loss reduction rate are considered synthetically, and the two indexes are transformed into a single index (VSLR) to determine the optimal location of DG. According to this index, the node with high sensitivity and high average power loss reduction rate are selected as the optimum location of DG connected to the power grid, and the optimal access capacity of DG is determined by the algorithm proposed in this paper. The simulation experiments of IEEE30-bus are carried out with MATLAB\ Matpower toolbox, and the results are compared with the existing research results. The results show that the method of studying the optimal location and sizing of DG in this paper emerges better performance.