Method for simplifying battery operating conditions of energy storage system

An energy storage system and energy storage battery technology, which is applied in the direction of measuring electricity, measuring electrical variables, measuring devices, etc., can solve problems such as inability to obtain results, and achieve the effects of reducing test costs, reducing test complexity, and improving test efficiency.

Active Publication Date: 2019-02-19
OCEAN UNIV OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Through the research, it is found that the above methods cannot obtain ideal results when used in the research of the working conditions of the energy storage system of the ocean power station.

Method used

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  • Method for simplifying battery operating conditions of energy storage system
  • Method for simplifying battery operating conditions of energy storage system
  • Method for simplifying battery operating conditions of energy storage system

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Embodiment Construction

[0058] Hereinafter, the specific embodiments of the present invention will be further described with reference to the accompanying drawings.

[0059] The invention provides a simplified method for the battery working condition of an energy storage system. Taking an oscillating float wave power generation device placed in a sea area of ​​about 1 km southeast of Zhaitang Island, Huangdao District, Qingdao City as an example, the topology structure of the power generation device is as follows: figure 2 shown, including the generator on the left, the load unit on the right, and the energy storage system in the middle. In order to ensure the normal operation of the battery pack, a battery management system (Battery Management System, abbreviated as "BMS") is equipped. The generator electric energy and load power can be measured through the BMS, and the data used in the experiment in this embodiment can be obtained by taking the difference between the two. image 3 It is an actual...

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Abstract

The invention relates to a method for simplifying battery operating conditions of an energy storage system. The method simplifies the actual operating conditions of an energy storage battery into testconditions for laboratory testing, and comprises the following steps: simplifying the actual operating conditions of the energy storage battery; performing multi-objective optimization on simplifiedoperating condition parameters; shortening and accelerating the optimized actual operating conditions of the energy storage battery; and setting the test conditions. The method for simplifying batteryoperating conditions of an energy storage system adopts a method of segmenting and leveling a power sequence, and obtains a segmenting parameter K and a leveling parameter L through multi-objective optimization. As long as the values of the parameters K and L are determined, each actual operating condition may result in a unique simplified operating condition. The shortening and accelerating method can be applied to a battery of any capacity, and can shorten and accelerate a long-term measurement condition of a large battery pack to obtain a small battery short-time test condition. Accordingto the technical scheme, the application range of the simplified operating conditions is expanded, the actual battery test can be changed into a laboratory test, and the test complexity is reduced.

Description

technical field [0001] The invention belongs to the technical field of energy storage batteries, in particular to a method for simplifying the battery working conditions of an energy storage system. Background technique [0002] The performance and life of the energy storage battery are affected by the conditions of use, and it is necessary to evaluate the energy storage battery according to the actual operating conditions of the specific energy storage battery application. Taking the ocean energy power generation system as an example, the ocean energy power generation system is affected by factors such as tides and eddy currents, and its output power is complex, random, and unstable. There is generally a DC energy storage system in the ocean energy power generation system. The output power is dynamically balanced and then inverted and connected to the grid. The health of the energy storage battery pack will be directly related to the overall safety, reliability and economy ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/385
Inventor 张立强黎明林俊宇
Owner OCEAN UNIV OF CHINA
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