Water-light storage system running optimization method considering similarities and economic benefits

A technology of operation optimization and similarity, applied in the direction of single-network parallel feeding arrangement, AC network load balancing, AC network circuit, etc., can solve the problems of ecological environment pollution, fossil fuel does not meet the green development and other problems

Active Publication Date: 2019-06-11
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

[0002] With the progress of human civilization, human beings have attached great importance to green and sustainable development. However, the use of fossil energy to generate electricity also emits a large amount of pollutants, which has caused a certain degree of pollution to the ecological environment. Conventional fossil fuels are no longer in line with green concept of development

Method used

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  • Water-light storage system running optimization method considering similarities and economic benefits
  • Water-light storage system running optimization method considering similarities and economic benefits
  • Water-light storage system running optimization method considering similarities and economic benefits

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Embodiment

[0043] For the convenience of description, the relevant technical terms appearing in the specific implementation manner are explained first:

[0044] like figure 1 As shown, the water-photovoltaic storage system mainly includes: small hydropower station, photovoltaic power station, pumped-storage power station, power load and large power grid;

[0045] Among them, the turbines and variable-speed pumping pumps of small hydropower stations, photovoltaic power stations, and pumped-storage power stations are connected to the AC bus; the AC bus is connected to the power load and the large power grid;

[0046] The output energy of the small hydropower station and the photovoltaic power station first meets the load energy demand, and the surplus energy is pumped and stored in the pumped storage power station through the variable speed pumping pump; when the small hydropower station and the photovoltaic power station cannot meet the load demand, the pumped storage power station is use...

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Abstract

The invention discloses a water-light storage system running optimization method considering similarities and economic benefits. According to the method, maximum-degree matching between a power generation curve and a load curve is realized under 24 dimensions a day, and the matching degree between the power generation curve and the load curve is depicted through cosine similarities; and meanwhile,when a pumped storage power station participates in matching degree adjustment, maximization of the benefit of the power station is considered, and therefore a double-goal optimization function of the similarities and the economic benefits is established. A system dispatcher can select proper running points in a Pareto curve composed of the similarities and the economic benefits according to different risk levels, in this way, the similarity requirement can be met, the economic benefit of the pumped storage power station also can be guaranteed, and therefore a system has high stability and economy.

Description

technical field [0001] The invention belongs to the technical field of hybrid new energy, and more particularly relates to a method for optimizing the operation of a water-photovoltaic storage system considering similarity and economic benefits. Background technique [0002] With the progress of human civilization, human beings have attached great importance to green and sustainable development, and the use of fossil energy to generate electricity also discharges a large amount of pollutants, causing a certain degree of pollution to the ecological environment. Conventional fossil fuels are no longer in line with green Development concept. Renewable energy is a kind of clean energy, which can replace the non-renewable fossil fuels that cause serious pollution to the environment, and generate electric energy, so as to meet people's electric energy demand for daily life and social development. The development and utilization of renewable clean energy can not only effectively r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02J3/48H02J3/38H02J3/28
Inventor 胡维昊李坚黄琦李涛许潇张真源井实易建波曹迪青柯
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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