Active distribution network operation planning optimization method taking regard of electricity price response at demand side

Abstract

The present invention discloses an active distribution network operation planning optimization method taking regard of electricity price response at a demand side. The method comprises: setting basicparameters of a particle swarm optimization, and performing initialization of an active distribution network operation plan corresponding to each particle; calculating a load variable amount and a netload of each node according to a demand side electricity price response formula; performing electric power system trend calculation, obtaining an active power requiring purchasing from a major network of each head-end node at each moment, and performing load cutting or electricity discarding according to a power off-limit condition; and calculating total operation cost of the active distributionnetwork, and obtaining an optimal operation plan and the minimum operation cost of the active distribution network through iteration of the particle swarm optimization. The active distribution networkoperation planning optimization method taking regard of electricity price response at a demand side considers cooperation regulation of a supply side and a demand side to commonly bring storage battery energy storage and electricity price responses at the demand side into the active distribution network operation plan optimization and fully develop peak cutting and valley filling capability of two sides of a 'source charge' so that receiving of an intermittent power supply is improved, a operation cost of a power distribution network is reduced and the active distribution network operation planning optimization method taking regard of electricity price response at a demand side can be applied to various occasions for distribution network operation optimization.

Description

technical field [0001] The invention belongs to the field of distribution network operation optimization, and more specifically relates to an active distribution network operation plan optimization method considering demand-side electricity price response. Background technique [0002] Electric power is a basic industry related to the national economy and people's livelihood, and power supply plays an important role in economic development. The development of renewable new energy and smart grid has become an important direction for the power industry. However, with the large-scale integration of intermittent renewable energy represented by wind power and photovoltaics, its inherent natural characteristics such as output uncertainty, unpredictability, and uncontrollability have also brought major challenges to power system production. , seriously affecting the safe operation of the power system. [0003] As an important part of power generation, transmission, distribution a...

AI Technical Summary

Problems solved by technology

[0008] Aiming at the above defects or improvement needs of the prior art, the present invention provides an active distribution network operation plan optimization method that considers demand-side electricity price response, thereby solving the problem that the existing active distribution network operation plan optimization method cannot deeply consider energy storage Participate in optimal operation with demand-side resources. The optimal operation of the active distribution network based on electricity price response is not yet mature enough, resulting in the technical problems that the operation of the active distribution network is not economical enough and the acceptance rate of renewable new energy is not high.

Images