Double-layer optimization scheduling method for power distribution network

Abstract

The invention relates to the technical field of power distribution network dispatching, in particular to a double-layer optimization scheduling method for a power distribution network. The method comprises the steps: based on historical weather data parameters, renewable energy power generation system working condition parameters and corresponding renewable energy power generation system output values, establishing the association relationship among the weather data parameters, the renewable energy power generation system working condition parameters and the renewable energy power generation values; constructing an upper-layer scheduling optimization model based on the association relationship of the weather data parameters, the renewable energy power generation system working condition parameters and the renewable energy output values; constructing a lower-layer scheduling optimization model based on the power demand of the current area, the power distribution network scheduling parameter range and the power distribution network working condition parameters; and realizing fusion of the upper-layer scheduling optimization model and the lower-layer scheduling optimization model based on the association relationship between the renewable energy output value and the power distribution network scheduling parameters to obtain a power distribution network double-layer scheduling model. According to the invention, joint reasonable and safe scheduling of the power distribution network system and the renewable energy power generation system can be realized.

Description

technical field [0001] The invention relates to the technical field of distribution network dispatching, in particular to a two-layer optimal dispatching method of a distribution network. Background technique [0002] With the shortage of fossil energy and the continuous deterioration of the natural environment, renewable energy represented by wind power and photovoltaics has developed rapidly, and its ratio in the distribution network has gradually increased in recent years. How to coordinate various distributed energy sources, energy storage devices and active loads in the active distribution network, and effectively participate in the current power market, so as to improve the voltage level of the distribution network and reduce the operating cost of the distribution network has become an urgent problem to be solved . [0003] At present, the dispatching method of the distribution network generally adopts the independent dispatching method of the distribution network and...

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Problems solved by technology

[0003] At present, the dispatching method of the distribution network generally adopts the independent dispatching method of the distribution network and the renewable energy generation system, and does not consider the local environmental parameters, the operating condition parameters of the renewable energy generation system, the power consumption habit parameters and the distribution network itself. There is a lot of blindness in the dispatching scheme, and it is easy to have a negative impact on the safe and stable operation of the distribution network.

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