Configuration and strategy formulation of electrochemical energy storage systems based on demand regulation

An energy storage system and electrochemical technology, applied in the field of energy storage, can solve problems such as insufficient economy, and achieve the effect of reducing the cost of electricity per kilowatt hour and demand electricity, 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
  • Claims
  • 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 demand regulation, 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 of electrochemical energy storage systems based on demand regulation
  • Configuration and strategy formulation of electrochemical energy storage systems based on demand regulation
  • Configuration and strategy formulation of electrochemical energy storage systems based on demand regulation

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Embodiment

[0107] This embodiment provides a configuration and strategy formulation method for an electrochemical energy storage system based on demand regulation, which includes the following steps:

[0108] Step 1, collect the annual hourly electricity load data of large industrial users;

[0109] Step 2, extract typical daily load and extract monthly maximum demand value;

[0110] 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;

[0111] Extract the monthly maximum demand value of each month from the annual hourly electricity load data, and the...

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Abstract

The invention provides a configuration and strategy formulation method of an electrochemical energy storage system based on demand regulation. The method uses a k-means clustering algorithm to extract typical daily loads from the annual hourly electricity load data of large industrial users and extract the maximum monthly demand value; obtain the monthly real-time electricity price of large industrial users; establish the economic model of the electrochemical energy storage system; set constraints; take the optimal economy as the objective function, use genetic algorithm to optimize The optimal system rated capacity and optimal system rated charging and discharging power of the electrochemical energy storage system are used as the configuration of the electrochemical energy storage system; the hourly charging and discharging status and charging and discharging power of a typical day are applied to the season corresponding to the typical day Everyday as a strategy for electrochemical energy storage systems. According to the economical model of the electrochemical energy storage system, the present invention calculates the optimal configuration of the system, formulates a typical daily operation strategy, cuts peaks and fills valleys, reduces peak loads at the same time, and minimizes the user's kWh electricity cost and demanded electricity fee.

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 demand regulation. Background technique [0002] Energy storage battery 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 energy storage market, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/32H02J3/00
CPCH02J3/32H02J3/0075H02J2203/20H02J2310/50H02J2310/64Y02B70/3225Y04S20/222
Inventor 曹锐鑫张瑾艾腾飞曹龙种蕊胡波尚敏青王振峰冯晶晶
Owner 西安联创分布式可再生能源研究院有限公司
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