Electric power and electric quantity balance analysis method for new energy grid connection

Abstract

The invention discloses an electric power and electric quantity balance analysis method for new energy grid connection. The method comprises the steps: A1, establishing a monthly electric quantity deviation correction model of the new energy uncertainty: establishing the monthly electric quantity deviation correction model of the new energy uncertainty by considering wind, light and water prediction, monthly load prediction, monthly system operation constraints and the like, and obtaining a corrected monthly power generation plan; A2, establishing a monthly contract electric quantity decomposition and day-ahead connection model: establishing the monthly contract electric quantity decomposition and day-ahead connection model in combination with the corrected monthly power generation plan; and A3, establishing a day-ahead optimal scheduling model: establishing the day-ahead optimal scheduling model in combination with unit operation constraint requirements. The method has the beneficial effects that the electric quantity plan can be adjusted for different scheduling scenes by constructing the monthly electric quantity deviation correction model of new energy uncertainty, so that the analysis method effectively adapts to the randomness of different new energy outputs such as wind, light, water and the like.

Description

technical field [0001] The invention relates to a power balance analysis method, in particular to a new energy grid-connected power balance analysis method, which belongs to the technical field of power system dispatching. Background technique [0002] Electric power balance is the core of power system scheduling planning. The current rapid development of clean energy such as hydropower, wind power, and photovoltaic power generation has played an important role in alleviating energy shortages. However, the uncertainty of new energy output has increased system operation. At the same time, the proportion of new energy sources continues to increase, leading to an increasing problem of insufficient supply of flexibility in the power system. Therefore, it is of great research significance to further carry out the analysis of power balance for new energy characteristics. [0003] The power system contains many uncertainties, and the uncertainty problem is a factor that cannot be ...

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Problems solved by technology

[0002] Electric power balance is the core of power system scheduling planning. The current rapid development of clean energy such as hydropower, wind power, and photovoltaic power generation has played an important role in alleviating energy shortages. However, the uncertainty of new energy output has increased system operation. At the same time, the proportion of new energy continues to increase, leading to an increasingly serious problem of insufficient supply of flexibility in the power system

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