FAST LOAD FLOW FOR RADIAL POWER SYSTEMS USING PARALLEL PROCESSING

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  • 並列処理を用いた放射状系統高速潮流計算
  • ヘイレツ ショリ オ モチイタ ホウシャジョウ ケイトウ コウソク チョウリュ

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Abstract

Load flow calculation is a basic tool for power system planning and control which include load flow analysis, voltage control, service restoration, network reconfiguration, and etc. In these applications, it is very important to solve the load flow problem as efficiently as possible.<br> This paper presents a fast load flow using parallel processing for radial power systems. The method can be applied to secondary systems and distribution systems. Since it uses only active and reactive power injection to main lines and laterals as state variables, reduction of number of state variables can be realized. Radial networks are mapped to the tree structure of parallel processor systems in the proposed method. The forward/backward sweep approach is realized by communication from a root processor to leaf processors and vice versa. Using the mapping scheme of the proposed method, each processor has to communicate with only neighboring processors. The proposed method is evaluated on various radial systems with promising results.

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