A capacity allocation method of energy storage units applied to active distribution network

Abstract

The invention discloses an energy storing unit capacity configuration method applied to an initiative power distribution network in the technical field of initiative power distribution network control. The method includes the steps that parameters in the initiative power distribution network are determined; different target functions are selected, and constraint conditions are determined; the selected target functions are solved, and an operation power curve of an energy storing unit is obtained; the configuration capacity of the energy storing unit is obtained according to the operation power curve of the energy storing unit. The energy storing unit capacity configuration method solves the problem of capacity configuration in the energy storing unit in the initiative power distribution network, the energy storing unit is used for reducing adverse influences on a system after distributed renewable energy sources for photovoltaic, wind force generation and the like are connected into the initiative power distribution network, and the reasonable power extreme value and the capacity configuration of the energy storing unit are verified by generating the optimized operation power curve of the energy storing unit.

Description

technical field [0001] The invention belongs to the technical field of active distribution network control, and in particular relates to a method for configuring the capacity of an energy storage unit applied to an active distribution network. Background technique [0002] In recent years, with the continuous expansion of the grid scale and the continuous growth of power load, the traditional large-scale power system model has become increasingly difficult to adapt to the growth of power consumption and the requirements of user safety and reliability. At the same time, the depletion of fossil energy and the increase in carbon dioxide emissions pose new challenges to human survival, and the access and development of renewable energy is imperative. Compared with centralized power generation, distributed power generation has many advantages such as less pollution, high reliability, high energy utilization efficiency, flexible and decentralized installation, and has attracted wi...

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Problems solved by technology

[0006] The purpose of the present invention is to provide an energy storage unit capacity configuration method applied to the active distribution network, aiming at the disadvantages of increased volatility and weakened reliability after the active distribution network is connected to distributed energy, and energy storage through reasonable calculation The capacity configuration of the system, so as to avoid the problem that the electricity production cost is too large or does not meet the system demand

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