Configuration and strategy formulation method of electrochemical energy storage system based on battery decay

An energy storage system and electrochemical technology, applied in the field of energy storage, can solve problems such as economical insufficiency, achieve the effects of reducing the user's cost of electricity and demanded electricity charges, reducing peak loads, and reducing the payback period

Active Publication Date: 2021-10-01
西安联创分布式可再生能源研究院有限公司
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a configuration and strategy formulation method for an electrochemical energy storage system based on battery attenuation, so as to solve the technical problem of insufficient economic efficiency of the method in the prior art

Method used

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  • Configuration and strategy formulation method of electrochemical energy storage system based on battery decay
  • Configuration and strategy formulation method of electrochemical energy storage system based on battery decay
  • Configuration and strategy formulation method of electrochemical energy storage system based on battery decay

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Embodiment

[0114] This embodiment provides a configuration and strategy formulation method for an electrochemical energy storage system based on battery attenuation. The method includes the following steps:

[0115] Step 1, collect the annual hourly electricity load data of large industrial users;

[0116] Step 2, extract typical daily load and extract monthly maximum demand value;

[0117] Using the k-means clustering algorithm, input the annual hourly electricity load data collected in step 1, use the maximum value, minimum value, average value, standard deviation, range and mode as the extraction features, and output the annual spring, summer, The electric load data and dates closest to the cluster center in autumn and winter are respectively regarded as typical daily load in spring, typical daily load in summer, typical daily load in autumn and typical daily load in winter;

[0118] Extract the monthly maximum demand value of each month from the annual hourly electricity load data, ...

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Abstract

The invention provides a method for configuration and strategy formulation of an electrochemical energy storage system based on battery attenuation, which is suitable for large industrial users. Extract the typical daily load and extract the maximum monthly demand value; obtain the real-time electricity price of large industrial users every month; based on the battery attenuation characteristics, establish the economic model of the electrochemical energy storage system; the economics of the electrochemical energy storage system The model includes the annual peak and valley income model, the annual demand income model, the battery annual attenuation model and the initial investment cost model of the electrochemical energy storage system; set constraints; take the economical optimization as the objective function, and use the genetic algorithm to optimize. The invention considers the attenuation characteristics of the battery, provides the income and economy of the energy storage system closer to the actual operation, and provides favorable conditions for the large-scale industrialization of the energy storage technology.

Description

technical field [0001] The invention belongs to the field of energy storage, relates to user-side energy storage, and in particular to a configuration and strategy formulation method for an electrochemical energy storage system based on battery attenuation. Background technique [0002] The electrochemical energy storage system has become a leader among many energy storage technologies due to its high energy density, small footprint, low noise, and short construction period. According to the statistics of the China Solar Energy Industry Association (CPIA), as of the end of 2019, the cumulative installed capacity of electrochemical storage in the world reached 8.22GW, a year-on-year increase of 24.02%. The cumulative installed capacity was 1592.3MW, a year-on-year increase of 48.4%, of which the user side is still the largest application market for energy storage, accounting for 51%. From the above data, it can be seen that user-side energy storage occupies a place in the en...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/32H02J3/00
CPCH02J3/32H02J3/0075H02J2203/20H02J2310/64Y02B70/3225Y04S20/222
Inventor 曹锐鑫张瑾曹龙种蕊胡波尚敏青王振峰艾腾飞
Owner 西安联创分布式可再生能源研究院有限公司
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