Active power distribution network voltage control method considering multi-agent game in market environment

Abstract

The invention discloses an active power distribution network voltage control method considering a multi-agent game in a market environment. In the market environment, in an active power distribution network voltage control process, a power distribution network operator and a photovoltaic operator are considered to belong to different benefit subjects, and the benefits of the two parties are balanced while voltage control is achieved. The method comprises the steps that an active power distribution network reactive voltage control model considering the benefits of multiple subjects is built andincludes a power distribution network operator optimization model and a photovoltaic operator optimization model; and the active power distribution network voltage control model considering the multi-agent benefits is solved. In the invention, a problem of voltage out-of-limit of the power distribution network with high-permeability photovoltaic access is solved. By introducing a game strategy, the benefits of the power distribution network operator and the photovoltaic operator can be considered while voltage control is realized, the source network cooperative reactive voltage control underthe active power distribution network market environment containing high-permeability photovoltaic access can be realized, and a reference is provided for the active power distribution network voltagecontrol under power reform.

Description

technical field [0001] The invention relates to a voltage control method of an active distribution network. In particular, it relates to an active distribution network voltage control method considering multi-agent games in a market environment. Background technique [0002] Distributed power generation is an efficient use of renewable energy. Under the severe situation of energy crisis and environmental protection pressure, the National Energy Administration has formulated a series of policies to comprehensively promote the development of distributed photovoltaic power generation industry. The distribution network with high-penetration photovoltaic access is prone to voltage over-limit problems, and the reactive power adjustment capability of the remaining capacity of the distributed photovoltaic power inverter can play an important role in voltage regulation of the distribution network. Under the influence of power reform and national policies, more and more individuals a...

AI Technical Summary

Problems solved by technology

[0003] In the traditional reactive power and voltage control strategy, without affecting the photovoltaic active power output, the reactive power optimization method of distributed photovoltaics is forced output, regardless of the value of reactive power, and there is no corresponding reactive power subsidy

In a market environment that requires photovoltaics to frequently optimize reactive power output, photovoltaics provide reactive power with a certain cost. Therefore, the reactive power optimization method of "free forced reactive power output" makes photovoltaic operators lack suitable reactive power transaction subsidies, reducing Its enthusiasm for participating in the regulation of reactive power and voltage of the distribution network may cause a shortage of reactive power in the distribution network, which will be unfavorable to the development of power reform in the long run

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