Abstract

Instead of drawing power grid and inputting component parameters manually to establish calculation model, the theoretical line loss calculation platform for 220 kV and above power grid in Shanghai is developed based on grid dispatching D5000 system, capable of capturing real-time power grid basic / operational data and offline graphics saving. It resolves all data for previous day automatically before commencing theoretical line loss calculation. The theoretical line loss calculation results for 500 / 220 kV showed its validity and accuracy. The project effectively accumulates the scientific data and promote State Grid Shanghai Municipal Electric Power Company to fully grasp the related equipment operating conditions of Shanghai 500 / 220kV power grid. The analysis results not only help power company to guide production practice, but also provide a better understanding for power grid weakness and loss composition, which enables power company managers to guide future construction and transformation of power grid accurately and effectively.

Full Text
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