Regional power grid source network load interaction intra-day plan optimization adjustment method and device

Abstract

The invention discloses a regional power grid source network load interaction intra-day plan optimization adjustment method and device. The method comprises: a regional power grid regulation and control mechanism periodically compiling a direct regulation unit and an inter-provincial tie line intra-day initial plan; the provincial power grid regulation and control mechanism compiling an intra-dayinitial power generation plan of the provincial power grid; the regional power grid regulation and control mechanism carrying out whole-grid new energy consumption trend analysis according to the intra-day initial power generation plan of the provincial power grid; when a certain provincial power grid is insufficient in daily new energy consumption capacity and the peak load regulation capacity ofthe direct dispatching unit or other provincial power grids is surplus, optimizing and adjusting the regional power grid source network load interaction intra-day plan, and issuing the adjusted conventional unit power generation plan, the new energy power generation plan, the adjustable load and energy storage calling plan and the inter-provincial power transmission and reception plan to each provincial power grid regulation and control mechanism for scheduling and execution according to the regional power grid source network load interaction intra-day plan. By organizing trans-provincial source network load interaction, the surplus peak regulation capacity of the large power grid is released, and the new energy consumption capacity of the local power grid is improved.

Description

technical field [0001] The invention relates to a method and device for intraday plan optimization and adjustment of source-network-load interaction in a regional power grid, and belongs to the technical field of power system scheduling automation. Background technique [0002] With the rapid development of new energy sources such as wind power and photovoltaics in China, and the rapid expansion of grid-connected new energy grids, local grids, including some provincial grids, are affected by factors such as local new energy installed capacity, power supply structure, and load levels. Energy consumption is difficult. [0003] To solve the problem of new energy consumption difficulties, in the intraday planning stage, new peak-shaving resources such as multi-energy coordination and optimization, energy storage, and adjustable loads are currently used to participate in grid regulation to promote the improvement of new energy consumption capacity of the grid; And real-time oper...

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Problems solved by technology

[0003] To solve the problem of new energy consumption difficulties, in the intraday planning stage, new peak-shaving resources such as multi-energy coordination and optimization, energy storage, and adjustable loads are currently used to participate in grid regulation to promote the improvement of new energy consumption capacity of the grid; And real-time operation control is mainly based on the provincial power grid as the main decision-making body. When it is difficult for the provincial power grid to absorb new energy, it is difficult for the provincial power regulation organization to mobilize the source and load resources in a wider range outside the province to help each other across provinces and improve the consumption of new energy. Capacity

On the other hand, the joint optimization of unified intraday plans within the scope of the regional power grid is affected by the execution methods of provincial power market transaction contracts in the region, the differences in intraday plan preparation modes, and the actual constraints of power grid operation, so it is difficult to operate normally and practically.

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