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Power distribution method and system

A method of distribution, technology of electricity, applied in the field of electric power

Active Publication Date: 2018-09-18
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, for each power plant, the power distribution in the bilateral market and the spot market must be fully considered to fully meet the user's load demand and avoid waste of resources while obtaining profits. However, there is currently no scientific research method

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Embodiment Construction

[0024] The content of the present invention will be further described below in conjunction with the accompanying drawings.

[0025] Such as figure 1 As shown, this embodiment provides a power distribution method, including the following steps:

[0026] S100 obtains power plant cost data, historical reference electricity price data, transmission line information, load demand electricity in the spot market, and bilateral market contract electricity prices;

[0027] S200 initializes the distributed power of the power plant in the bilateral market, the distributed power of the power plant in the spot market, and the distributed power price of the power plant;

[0028] S300 establishes a probability density function according to the historical reference electricity price data, obtains several bids of each competing factory by using a Monte Carlo method according to the probability density function, and generates several electricity price strategies;

[0029] S400 Perform DC optim...

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Abstract

The invention relates to a method and a system for electric quantity distribution. The method comprises the steps of: acquiring cost data, historical reference electricity price data and power transmission line information of a power plant, load demand for electric quantity of a spot market, and a contract electricity price of a bilateral market; initializing distributed electric quantity of the power plant in the bilateral market and the spot market, and a distributed electricity price of the power plant; establishing a probability density function according to the historical reference electricity price data, and acquiring a plurality of electricity price strategies by adopting a Monte Carlo method; calculating transaction prices of a power market under different electricity price strategies through a DC optimal power flow model; acquiring spot market profit values of the power plant under different electricity price strategies according to the transaction prices of the power market; and establishing an adaptability function, solving the adaptability function according to SPSO-TVAC, and acquiring the distributed electric quantity of the power plant in the bilateral market and the spot market. The method and the system provided by the invention are high in calculation efficiency, and have high application value.

Description

technical field [0001] The invention relates to the field of electric power technology, in particular to a power distribution method and system. Background technique [0002] After the power plant generates electricity, it usually distributes the electricity to several markets, including spot market, bilateral trading market and reserve market. In the spot market, the power allocated by power plants is affected by the behavior of market participants and fluctuations in user load demand. It is necessary for power plants to use bilateral contract transactions with low transaction risks to allocate part of their power generation to the bilateral market. Therefore, for each power plant, the power distribution in the bilateral market and the spot market must be fully considered to fully meet the load demand of users and avoid waste of resources while obtaining profits. However, there is currently no scientific research method. Contents of the invention [0003] Based on this, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/00
Inventor 陈政曾鸣张翔欧鹏李春雪欧阳邵杰宋艺航冷媛蒙文川杨惠萍刘英新陈清贵
Owner ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD
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