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A multi-type energy storage joint planning method based on random fluctuation of new energy

A multi-type energy storage, random fluctuation technology, applied in the direction of AC network load balancing, single-network parallel feeding arrangement, etc., can solve problems such as in-depth research

Active Publication Date: 2020-10-27
XI AN JIAOTONG UNIV
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Problems solved by technology

At present, the investment portfolio optimization research involving multiple types of energy storage has just started, and the existing research has not conducted in-depth investigations on the optimization of the location and capacity of multiple types of energy storage to promote the consumption of new energy

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  • A multi-type energy storage joint planning method based on random fluctuation of new energy
  • A multi-type energy storage joint planning method based on random fluctuation of new energy
  • A multi-type energy storage joint planning method based on random fluctuation of new energy

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Embodiment Construction

[0091] The present invention provides a multi-type energy storage joint planning method based on random fluctuations of new energy sources, to meet the grid-connected consumption of new energy for the planning purpose, and to optimize the investment and construction combination of multiple types of energy storage equipment as the research objective. Based on full consideration of the random fluctuation characteristics of new energy output, a multi-type energy storage joint planning model with chance constraints is constructed. The planning model involves the multi-faceted characteristic differences of different energy storage types, and includes opportunity constraints that can simultaneously adjust the risk level of system abandonment of new energy and the guarantee rate of new energy consumption, which can help achieve more flexible and economical planning decisions. The invention makes up for the defects in the traditional planning method, realizes the optimal planning of the...

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Abstract

The invention discloses a multi-type energy storage joint planning method based on stochastic fluctuation of new energy. The method comprises the following steps: acquiring multi-type energy storage planning data, system basic technical data, system operation constraint data and system operation prediction data; constructing a joint planning model for determining multi-type energy storage locatingand sizing; and solving the joint planning model to obtain the investment and construction quantity / capacity of energy storage equipment of each node to be selected, the investment and operation costof the construction plan under different abandon new energy risk and new energy absorption rate, as well as the electricity utilization rate and capacity utilization rate, and realizing optimal locating and sizing of the energy storage equipment according to the above data. The multi-type energy storage joint planning method disclosed by the invention has higher economical and energy storage utilization efficiency than a single-type energy storage planning method, and can better meet various requirements of system operation, thereby greatly improving the consumption level of new energy.

Description

Technical field [0001] The invention belongs to the technical field of power supply planning, and specifically relates to a multi-type energy storage joint planning method based on random fluctuations of new energy sources. Background technique [0002] The random volatility and uncontrollability of new energy power generation have brought huge challenges to the operation and dispatch of the power system. In order to ensure the safe operation of the system and ensure the full consumption of a high proportion of new energy, the power system should have sufficient Adjust flexibility to alleviate the impact of short-term fluctuations in new energy output, and deal with the timing mismatch between new energy output and load. With the gradual maturity of energy storage equipment at the technical and commercial levels, large-scale energy storage has gradually become a potential solution that provides the flexibility required for system operation for new energy grid-connected consumptio...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/28H02J3/38
Inventor 王建学古宸嘉李昀昊李清涛杨钤
Owner XI AN JIAOTONG UNIV
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