Active power distribution network power market double-layer transaction method based on energy sharing

Abstract

The invention discloses an active power distribution network electric power market double-layer transaction method based on energy sharing. The method comprises the following steps that a market participation subject performs a self-generated bilateral transaction according to the own requirements; if not, the power consumption and the power generation amount are reported to a distribution network operator; the distribution network operator takes distribution network area resource configuration optimization as a target, solves an optimization model, and distributes the optimization model in a corresponding distribution network area; for each region where the total power generation amount is not matched with the power demand, a distribution network operator participates in the wholesale side market to purchase and sell power and provide auxiliary services by taking benefit maximization as a principle; an operator in the wholesale side market carries out settlement on all received bids and prices; and the distribution network operator redistributes the bid winning in the distribution network range according to a resource optimal configuration principle, and distributes the bid winning in the wholesale side market according to contribution. According to the invention, the resource waste, such as wind abandoning, light abandoning, etc., is avoided, the users in the distribution network area can benefit from the resource waste, and the energy utilization efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of distribution network power supply, in particular to a two-layer trading method in an active distribution network power market based on energy sharing. Background technique [0002] In the existing power system, market activities are mainly concentrated on the wholesale side, that is, to establish a unified power market at the main network level, which is operated by a dedicated operator to achieve real-time power balance and stable operation of the system. The distribution network only purchases electricity from the wholesale market to meet the load demand of users. At present, all electricity centralized transactions are completed in the wholesale market, with a large amount of data, low efficiency, long calculation time and a sharp increase with the number of nodes and market members. [0003] With the emergence of new distributed resources such as distributed renewable energy, flexible loads, and elec...

AI Technical Summary

Problems solved by technology

[0004] With the development of distributed resources in the future, the number of producers and consumers (Prosumers) will increase greatly, and the volume of a single participant is small. If all of them directly participate in the market, it will greatly increase the complexity of power market scheduling and settlement. Reduce market clearing efficiency

[0005] This has led to the fact that all current centralized electricity transactions are completed in the wholesale market, with a large amount of data, low efficiency, long calculation time and a sharp increase with the number of nodes and market members.

[0006] The centralized trading model cannot adapt to the large-scale access model of distributed resources such as new energy, electric vehicles, and demand response in the future, and will hinder new market players such as load aggregators, virtual energy stations, and virtual power plants from participating in the market

At present, there is no market structure and model for large-scale new energy or distributed resource access

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