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A photovoltaic microgrid battery energy storage configuration method considering demand response uncertainty

An uncertainty, demand response technology, applied in data processing applications, system integration technology, forecasting and other directions, can solve the problems of not considering demand response, excessive energy storage, waste of resources, etc.

Inactive Publication Date: 2020-12-18
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

If demand response is not considered, it will lead to too much energy storage allocation, resulting in waste of resources; if demand response is considered, but the uncertainty of demand response is not considered, the result of energy storage allocation will be too optimistic, resulting in insufficient energy storage allocation scale

Method used

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  • A photovoltaic microgrid battery energy storage configuration method considering demand response uncertainty
  • A photovoltaic microgrid battery energy storage configuration method considering demand response uncertainty
  • A photovoltaic microgrid battery energy storage configuration method considering demand response uncertainty

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Embodiment Construction

[0121] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0122] Before formally introducing the method of the present invention, some directly obtainable parameters used in the preferred embodiment of the present invention and specific values ​​in the preferred embodiment of the present invention are introduced. Specifically, select typical daily photovoltaic output data and loads such as figure 1 , 2 As shown, the energy storage battery parameters ...

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Abstract

The invention discloses a demand response uncertainty-considered photovoltaic micro-grid battery energy storage configuration method. The method comprises the following steps of: (1) establishing a load self-elasticity coefficient-based demand response amount triangular fuzzy model under a day-ahead time-of-use electricity price; (2) establishing a day-ahead time-of-use electricity price optimization model; (3) establishing a demand response uncertainty-considered energy storage system optimization configuration model on the basis of the triangular fuzzy model and the day-ahead time-of-use electricity price optimization model; and (4) respectively converting a fuzzy optimistic value expression, a fuzzy pessimistic value expression and a fuzzy chance constraint in the energy storage system optimization configuration model into clear equivalent forms and carrying out solving to obtain a grid-connected photovoltaic micro-grid battery energy storage configuration scheme. According to the method, the complicated programming process and relatively long optimizing time when solving is carried out by adoption of a simulation method are avoided, the demands, for energy storage system configuration scales, of photovoltaic micro-grids are reduced by applying a demand response technology, and influences of the demand response uncertainty are considered, so that the method more accords with the demands of actual systems.

Description

technical field [0001] The invention belongs to the technical field of optimal configuration of energy storage systems, and more specifically relates to a photovoltaic microgrid battery energy storage configuration method considering the uncertainty of demand response. Background technique [0002] With the implementation and advancement of the "Photovoltaic Poverty Alleviation Policy", my country's distributed photovoltaic power generation business has developed rapidly, and a pattern of high-penetration distributed photovoltaics connected to the distribution network has been formed in some areas. Due to the intermittent nature of photovoltaic output and Volatility, large-scale distributed photovoltaic grid connection will bring challenges to the security and economy of the grid. Under the condition of large-scale distributed photovoltaic grid connection, compared with the direct grid connection scheme, the grid-connected photovoltaic microgrid access scheme is more economic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/06G06Q10/04G06Q50/06
CPCG06Q10/04G06Q10/06315G06Q50/06Y02E40/70Y04S10/50
Inventor 李姚旺苗世洪李超韩佶李力行刘君瑶
Owner HUAZHONG UNIV OF SCI & TECH
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