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Wind and photovoltaic complementation generation system optimization configuration method

A power generation system and optimization configuration technology, applied in photovoltaic power generation, photovoltaic power stations, circuit devices, etc., can solve problems such as large influence on optimization results, non-optimal results, local optimal solutions, and slow optimization speed

Inactive Publication Date: 2016-02-03
INNER MONGOLIA UNIVERSITY
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Problems solved by technology

The selection of the parameters of the ant colony algorithm has a great influence on the optimization result, which may easily lead to a non-optimal solution
Bacterial foraging algorithm has problems such as easy to fall into local optimal solution and slow optimization speed

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Embodiment Construction

[0094] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further elaborated below in conjunction with the accompanying drawings and specific examples.

[0095] The Dalinuoer area of ​​Hexigten Banner, Chifeng City, Inner Mongolia is selected for the configuration example calculation of the household wind-solar hybrid power generation system. The area is located at 43° north latitude and 117° east longitude. According to the data provided by the local meteorological stations, combined with the data on the NASA website, the actual power of the wind turbine and solar panels is calculated according to the wind speed and light data, and normalized based on the rated output. The monthly output rate of wind power generation is P1=(0.072, 0.046, 0.040, 0.043, 0.061, 0.005, 0.022, 0.006, 0.014, 0.021, 0.065, 0.094), and the monthly output rate of PV module is P2=(0.3, 0.377, 0.51...

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Abstract

The invention discloses a wind and photovoltaic complementation generation system optimization configuration method. The method comprises steps that, correlation between wind generation and photovoltaic generation is calculated to acquire wind and photovoltaic generation output joint probability distribution; influence of a wind speed and illumination on generation and energy storage battery life factors are comprehensively considered, and an optimization function taking lowest system generation cost as a target and a load power loss rate as a constraint condition is established; twice optimization is carried out by employing an improved harmony search algorithm, a needed wind generation power value, a photovoltaic generation power value and a theoretical energy storage battery capacity value are acquired through first optimization; the wind generation power value is adjusted to be a rated wind generator power existing in a market, and the target function is re-optimized to acquire the photovoltaic generation power and a final energy storage battery capacity target value which satisfy the constraint condition. Through the wind and photovoltaic complementation generation system optimization configuration method, a convergence speed in a solution process can be accelerated, secondary optimization satisfies practical demands, the optimization result is that power supply reliability can be improved, and system establishment cost can be reduced.

Description

technical field [0001] The invention relates to an optimal configuration method for a wind-solar complementary power generation system. Background technique [0002] The wind-solar hybrid power generation system is a means to solve the problem of power supply in remote areas that cannot be reached by conventional power grids. Since the wind-solar hybrid power generation system does not have the support of a large power grid as a backup capacity, random fluctuations in wind speed and sunlight will affect the reliable operation of the system. If a large energy storage reserve capacity is used to meet the reliability of power supply, the construction cost and maintenance cost of the wind-solar hybrid power generation system will be increased. Wind energy and solar power generation are complementary, and a reasonable configuration of the wind and solar hybrid power generation system can meet the load power supply demand, improve the reliability of power supply, and reduce the c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02J3/32H02S10/12
CPCY02E10/56Y02E70/30
Inventor 齐志远郭佳伟
Owner INNER MONGOLIA UNIVERSITY
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