Intraday rolling scheduling method of electric power system including multiple types of new energy

Abstract

The invention discloses an intraday rolling scheduling method of an electric power system including multiple types of new energy. The method comprises the following steps of (1) determining constrained conditions, optimization objects and corresponding algorithm options according to scheduling demands; (2) setting up an intraday rolling model based on robust scheduling; (3) adopting the static security correction service of an electric power system robust scheduling system with multiple time scales to achieve static security correction of a robust scheduling intraday plan; and (4) adopting the electric power system robust scheduling system with multiple time scales to issue the securely corrected rolling scheduling plan to an energy managing system in a file means or in an automatic way. The method has the following advantages that (1) the impact of the uncertainty of new energy on the power grid is reduced; (2) it is guaranteed that the system is capable of coping with the uncertainty of new energy and the scheduling scheme achieves relatively strong robustness; (3) the scheduling means has a wide application range; and (4) the method is cost effective and environment-friendly.

Description

technical field [0001] The invention relates to a method for preparing an intraday rolling plan of an electric power system containing multiple types of new energy sources, and belongs to the field of electric power technology. Background technique [0002] At present, with the global warming, the continuous deterioration of the ecological environment, and the increasing consumption of non-renewable energy, the development of new energy has become a global hotspot, and the energy structure is undergoing major changes worldwide. New energy sources such as wind power and photovoltaic power generation are intermittent and random, and cannot be effectively controlled. Therefore, in the process of power grid dispatching, the full amount of intermittent energy is usually directly connected to the grid. However, the traditional power grid economic dispatch is based on accurate load forecasting, and the power forecasting accuracy of intermittent energy sources represented by wind po...

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Problems solved by technology

Document 8, Ye Rong, Chen Haoyong, Wang Gang, etc. published in Electric Power System Automation, 2010, 34(5): 1-5, titled: Mixed Integer Programming Solution for Safety Constraint Unit Combination When Multiple Wind Farms are Connected to the Grid[J] , proposed a robust scheduling method based on the limit scenario method, which solved the problem that the complexity of the model increases sharply when the number of wind farms increases, but the energy structure involved in this article is relatively simple, and the robust Comparison of stick scheduling results with traditional scheduling results

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