A Method for Optimal Configuration of Power Supply in Microgrid System of Combined Wind and Wind Power Generation

A combination of wind and wind, system power supply technology, applied in the direction of circuit devices, energy industry, electrical components, etc., can solve problems such as the combination of correlation research is still rare, and achieve the effect of improving economy, reliability, and economic efficiency

Inactive Publication Date: 2016-11-23
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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Problems solved by technology

In the research on the optimal allocation of microgrid power sources for new energy generation including the output correlation ...

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  • A Method for Optimal Configuration of Power Supply in Microgrid System of Combined Wind and Wind Power Generation
  • A Method for Optimal Configuration of Power Supply in Microgrid System of Combined Wind and Wind Power Generation
  • A Method for Optimal Configuration of Power Supply in Microgrid System of Combined Wind and Wind Power Generation

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Embodiment Construction

[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0017] 1) Considering the correlation between new energy power generation output and different types of load power in the microgrid, based on the Copula theory, the probability distribution models of new energy power generation joint output and total load power are respectively established.

[0018] The Frank Copula function is selected as the connection function of the joint probability distribution of wind and solar output, so as to obtain the joint probability density function of the new energy power generation unit:

[0019] h ( P w , P pv ) = - θ ( e - ...

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Abstract

This paper discloses a method for optimal configuration of power sources in a wind-solar combined power generation micro-grid system, which belongs to the field of grid optimization planning. It includes the following steps: considering the correlation between new energy power generation output and different types of load power in the microgrid, and establishing the joint output of new energy power generation and the probability distribution model of the total load power based on the Copula theory; using the historical simulation method to obtain the microgrid operation The risk value in the planning realizes the risk assessment of the micro-grid; with the goal of considering the investment cost, low-carbon cost, and grid-connected operation power trading and other comprehensive economic costs, the optimal configuration model of the micro-grid power supply is constructed; the improved invasive weed optimization is adopted The algorithm solves the configuration scheme. Considering the correlation greatly improves the economy of the optimization scheme. At the same time, the risk value of the system is well combined with the economic loss, and the economy and reliability of the system are improved.

Description

technical field [0001] The present invention relates to a method for optimal configuration of power sources, more specifically, to a method for optimal configuration of power sources for wind-solar combined power generation microgrid systems Background technique [0002] In recent years, new energy generation such as wind energy and solar energy has become a research hotspot worldwide. Microgrid can integrate new energy power generation units, energy storage units and loads to achieve integrated operation, flexibly access and cut out the distribution network, and work in grid-connected or island mode, becoming an important technology for realizing energy diversification and efficient utilization. means. The rational configuration of microgrid power supply is one of the key issues to ensure its reliable, economical and environmentally friendly operation. [0003] Many scholars at home and abroad have conducted research on new energy power generation, with remarkable results...

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Application Information

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IPC IPC(8): H02J3/00H02J3/28H02J3/46G06F19/00
CPCY02P80/14
Inventor 杨月卢锦玲王阳
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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