Multi-type energy storage joint planning method based on stochastic fluctuation of new energy

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

Active Publication Date: 2019-05-21
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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  • Multi-type energy storage joint planning method based on stochastic fluctuation of new energy
  • Multi-type energy storage joint planning method based on stochastic fluctuation of new energy
  • Multi-type energy storage joint planning method based on stochastic 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 the random fluctuation of new energy, to meet the grid connection and consumption of new energy as the planning purpose, and to optimize the investment and construction combination of various types of energy storage equipment as the research goal. On the basis of fully considering the random fluctuation characteristics of new energy output, a multi-type energy storage joint planning model with opportunity constraints is constructed. The planning model involves the differences in various characteristics of different energy storage types, and includes opportunity constraints that can simultaneously adjust the risk level of system abandonment of new energy and the guaranteed consumption rate of new energy, 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 th...

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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 in particular relates to a multi-type energy storage joint planning method based on random fluctuations of new energy sources. Background technique [0002] The random fluctuation and uncontrollability of new energy power generation have brought great challenges to the operation and scheduling 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 the flexibility to alleviate the short-term fluctuations of new energy output and deal with the timing mismatch between new energy output and load. With the maturity of energy storage equipment at the technical and commercial levels, large-scale energy storage has gradually become a potential solution to provide the flexibility required for system operation for new energy grid-connected consumption. Ther...

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Application Information

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Patent Type & Authority Applications(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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