Intra-day rolling scheduling method considering electric quantity coordination

Abstract

The invention belongs to the technical field of electric power system dispatching operation, and discloses an intra-day rolling optimization scheduling method considering electric quantity coordination. By introducing a goal planning method, maximum new energy consumption, tracking of a day-ahead output plan, tracking of a day-ahead electric quantity plan including contract decomposition electric quantity and minimum electric quantity plan completion rate deviation are taken as multiple targets, and power grid and unit state information, new energy prediction output information and daily plan electric quantity completion conditions which are acquired in real time are comprehensively considered. A dynamic rolling intra-day optimization scheduling model enables the power generation plan after rolling correction to improve the absorption of new energy, achieves the balance control of the completion progress of the unit daily electric quantity plan, solves the problems that the unit daily electric quantity control is difficult to adapt to the change of a power grid operation environment and is highly dependent on manual intervention, and ensures effective and fair execution of the daily electric quantity plan of the power plant.

Description

technical field [0001] The invention belongs to the technical field of electric power system dispatching operation, relates to an electric power system dispatching optimization method in a power market transitional environment, and in particular relates to an intraday rolling dispatching method considering power coordination. Background technique [0002] With the large-scale grid integration of new energy sources such as wind power and photovoltaics, formulating a power generation plan that adapts to the randomness and intermittent nature of new energy output has become one of the important ways for the grid to absorb new energy. The intraday rolling dispatch of the power system based on the ultra-short-term predicted power of new energy sources updated on a rolling basis can effectively balance the system imbalance problem caused by new energy fluctuations and promote the consumption of new energy sources. With the development of the electricity market, it is necessary to ...

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Problems solved by technology

[0005] In order to solve the problem of how to adapt to the fairness of planned and contracted electricity during the transitional period of the electricity market in the real-time dispatching operation, when formulating the intraday dispatch plan, the completion progress of the electricity is flexibly and accurately considered and rolling adjustments are taken into account, and multi-type electricity coordination is considered. The unit output plan within the day, the unit’s daily power control is difficult to adapt to the change of the grid operating environment, and the problem of high dependence on manual intervention. The purpose of the present invention is to provide an intraday rolling scheduling method that considers power coordination

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