並列処理による電力系統の可変時間刻み解析の高速化

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  • Fast Algolithm for Multiple Time-scale Simulation of Power System using Parallel Processing
  • ヘイレツ ショリ ニヨル デンリョク ケイトウ ノ カヘン ジカン キザミ カ

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Power system analysis is the basis of operation and planning. Since power system is very large and complex, however, it takes long computation time for the analysis. It is desired to develop a fast calculation method for stability analysis.<br> Recently, the method using multiple time scale numerical integration algorithm was developed for analizing long-term dynamics. This method has the problem of calculation time since the coefficient matrix is very large. It is expected that the calculation time can be shortened using parallel processing. In order to increase the efficiency of parallel processing, the coefficient matrix must be divided since solution of a.set of linear equations is the main part of stability analysis.<br> In this paper, coefficient matrix is converted into BBDF matrix for effective calculation of parallel processing. Each sub network block can be divided again since it is sparse. The algorithm discussed in this paper was implemented on the nCUBE2S parallel processing computer system. The computing time is measured so that it can be compared to the computing time of a single processor system.

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