The processing method of deviation electric quantity is a key problem of the settlement work of power transaction. But the current methods are unable to meet the requirements of settlement work under electricity market environment. Aimed at this problem, this paper carries on the related research. We summarize the researches on deviation electric quantity at home and abroad, analyze the deviation electric quantity of cross-regional and cross-province electricity transaction, and illustrate the real-time price property of the deviation electric quantity. The processing method of deviation electric quantity based on virtual time-of-use power price is proposed, which utilizes the planed and measured data of 96 points in one day, divides the peak and valley time based on the load data of both purchasing and selling participants of electric quantity ingredients, and corrects the allocation ratios of deviation electric quantity with using the virtual time-of-use power price. Finally, we carry out case studies based on the practical operation and transaction data of power systems. The simulation results show that the deviation electric quantity allocation result is more reasonable, which illustrates the effectiveness and practicability of the method.
Key words
deviation electric quantity /
cross-regional grid /
time-of-use power price /
electricity transaction /
electric power settlement /
electricity market
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