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Ordered-charging-and-discharging-based optimized dispatching method of energy storage battery

A technology for optimizing scheduling and energy storage batteries, which is applied in battery circuit devices, battery charging management, arrangement of multiple synchronous batteries, etc. It can solve problems such as low utilization efficiency of battery energy storage systems, and achieve simple and economical optimization strategies. high effect

Active Publication Date: 2017-08-15
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of low utilization efficiency of the battery energy storage system, the present invention provides an energy storage scheduling method, which can not only improve the efficiency of the system, but also make the system more economical

Method used

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  • Ordered-charging-and-discharging-based optimized dispatching method of energy storage battery

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Embodiment Construction

[0026] In order to make the purpose, technical solution and advantages of the present invention clearer, the implementation manners of the present invention will be further described in detail below.

[0027] 1) Based on battery rotation, formulate orderly charging and discharging scheduling rules:

[0028] First count the number of times the battery is used, and determine the priority of the battery according to the number of times of use. The battery with a small number of times of use has a higher priority, and the power is allocated to the battery according to the priority; The number of uses is equal.

[0029] 2) By calculating the maximum number of charging and discharging times under orderly charging and discharging, calculate the reference value of the number of batteries with allocated power:

[0030] battery after n first charge and discharge, the first i The secondary discharge depth is d i , then the remaining charge and discharge times N S for:

[0031] ...

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Abstract

The invention discloses an ordered-charging-and-discharging-based optimized dispatching method of an energy storage battery. The method comprises: a maximum value of the number of times for charging and discharging under ordered charging and charging is calculated and then the number of allocated power batteries is calculated; statistics of the usage number of times of the batteries is carried out, priority levels of the batteries are determined based on the usage number of times and the smaller the usage number of times, the higher the priority levels of the batteries, and power distribution to the batteries is carried out based on the priority levels; the used batteries are recorded and the batteries are used in turn based on the used battery record, so that the usage numbers of times of the batteries can be balanced; and an economic optimization model is established by taking the operation cost of the battery energy storage system as an optimization target and the model is solved to obtain an optimal dispatching strategy. Therefore, the operation economy of the battery energy storage system can be improved, so that the usage efficiency of the system is enhanced.

Description

technical field [0001] The invention relates to an optimal scheduling method for an energy storage battery, in particular to an optimal scheduling method for an energy storage battery based on orderly charging and discharging. Background technique [0002] With the rapid development of distributed power generation technology represented by wind power and photovoltaic power generation, the demand for energy storage is also increasing. At present, batteries are one of the most widely used energy storage devices, but the cost of batteries is relatively high, and their lifespan is greatly affected by operating conditions. Therefore, it is particularly important to conduct reasonable scheduling of energy storage on the basis of economical considerations. [0003] A battery energy storage system may be composed of multiple battery devices, but most of the existing research focuses on the control method of a single battery device, and pays little attention to how to allocate power...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00
CPCH02J7/0013H02J7/0022Y02E60/10
Inventor 朱永强王甜婧郝嘉诚唐萁
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)