Gas-fired virtual power plant structure dispatching optimization method in consideration of uncertainty

Abstract

The present invention provides a gas-fired virtual power plant structure dispatching optimization method in consideration of uncertainty. The method comprises the steps: firstly, constructing a gas-fired virtual power plant structure and determine the flow of electricity, natural gas and carbon dioxide, wherein the gas-fired virtual power plant structure includes a wind power unit, a photovoltaicunit, and an electricity-to-gas unit; secondly, constructing the output power models of the respective units separately, and establishing an objective function according to the economic benefits of the output power models of the respective units; finally, introducing the conditional value-at-risk of the wind power and photovoltaic joint output of the virtual power plant into the objective functionof economic benefit dispatching, comprehensively considering the economic benefits and the degree of risk of the operation of the virtual power plant, controlling the risk level within an acceptablerange to achieve the optimal economic benefit, and formulating a virtual power plant dispatching optimization method. The method can optimize the operation of the virtual power plant, improve economicbenefits, reduce carbon emissions, greatly improve energy utilization efficiency, and solve the existing operation problems of the virtual power plant.

Description

technical field [0001] The invention relates to the technical field of power plant scheduling, in particular to a scheduling optimization method for a gas-electric virtual power plant considering uncertainty. Background technique [0002] At present, the development of renewable energy has become an important measure for countries around the world to ensure energy security, strengthen environmental protection, and respond to climate change. With the development of my country's economy and society, the problems of energy shortage and environmental pollution have become increasingly prominent, and the development of renewable energy has become the only way for my country to deal with the increasingly severe energy and environmental problems. The energy strategy points out the transformation of the power system structure and the increase of the penetration ratio of renewable energy, and the research on virtual power plants powered by distributed power sources has developed rapi...

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Problems solved by technology

[0003] In view of the deficiencies in the above-mentioned background technology, the present invention proposes a scheduling optimization method for gas-electric virtual power plants considering uncertainty, which solves the technical problems of poor economic benefits and high operational risks in the existing virtual power plant systems

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