Wind power compatibility network safety analysis method for coordinated dispatching of wind power and conventional energy sources

Abstract

The invention discloses a wind power compatibility network safety analysis method for the coordinated dispatching of wind power and conventional energy sources. The method aims to maximize system compatibility, and is implemented based on day-ahead power generation planning input and output data, the predicted power of wind power and a wind power fluctuation confidence interval are read, various kinds of constraint conditions comprising all day-ahead planning constraint conditions of a wind generation set and a conventional energy source machine sets are comprehensively taken into account to include a wind power compatibility analysis feasible region in day-ahead planning and ensure the guiding significance of a wind power compatibility analysis result for the day-ahead planning, and an output expression of the wind generation set is modified respectively to generate two optimal mathematical models to obtain a system wind power fluctuation curve capable of ensuring strict consistency with constrains of safety and the like of a power grid and give an alarm about wind power dispatching safety in advance. In addition, the method has the characteristics of low calculation intensity and high adaptability, and is more suitable for popularization and application in a dispatching organization with higher wind power access power in China.

Description

technical field [0001] The invention belongs to the technical field of power system scheduling automation, and in particular relates to a network security analysis method for wind power and conventional energy coordinated scheduling wind power compatibility. Background technique [0002] At present, energy saving, emission reduction and curbing climate warming have become a common challenge and an important issue facing the whole world. The Chinese government attaches great importance to the work of energy conservation and emission reduction in the power industry, and proposes to implement energy-saving power generation dispatching in the power field, improve the efficiency of energy use in the power industry, reduce environmental pollution, and promote the adjustment of energy and power structures. This is a major measure for the electric power industry to implement the scientific outlook on development and build a harmonious socialist society, and it is an inevitable choic...

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Problems solved by technology

However, due to the volatility and intermittency of wind power output, short-term wind power forecasting is difficult to accurately predict future wind power output. Therefore, there is a certain range of deviation between the actual output of wind power operation and the wind power output in the previous plan. When the wind power output deviation is relatively large in the preparation of the current plan, it cannot guarantee that the grid operation is still safe

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