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A microgrid-oriented modular energy storage device optimal configuration and control method

A technology of energy storage device and optimized configuration, applied in circuit devices, electrical components, energy storage, etc., can solve problems such as wasteful energy use, and achieve the effect of ensuring stability

Active Publication Date: 2020-08-11
NARI TECH CO LTD +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned situations have caused considerable impact on new energy sources such as large-scale photovoltaics and wind power. Therefore, it is very common for various large-scale new energy power stations that have been built to abandon light and wind, which is a great waste of energy.

Method used

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  • A microgrid-oriented modular energy storage device optimal configuration and control method
  • A microgrid-oriented modular energy storage device optimal configuration and control method
  • A microgrid-oriented modular energy storage device optimal configuration and control method

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Embodiment Construction

[0039] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and cannot be used to limit the protection scope of the present invention.

[0040] in this appendix image 3 In, γ=1.2, a=0.2, b=0.5, η in =1, n out =1.

[0041] Describe in detail in conjunction with accompanying drawing, this method comprises the following steps:

[0042] 1) Configure the energy storage power: Before determining the energy storage system, collect the local load situation, determine the load curve, clarify the load characteristics, perform grading processing, and determine the power value of the important load.

[0043] This embodiment includes two ways:

[0044] I) The difference supplement method is used to allocate power. The microgrid must ensure the balance of power supply and demand at any time. If the allocated energy storage capa...

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Abstract

The invention discloses a micro-grid modular energy storage device optimal configuration and control method. The method comprises the steps that 1) energy storage power is configured; 2) the capacity of an energy storage battery is calculated; 3) the energy storage battery is selected according to an actual energy storage battery type selection principle; 4) during the operation of a micro-grid system, the charge-discharge state and the charge-discharge value of an energy storage system are established according to the output value of each distributed power supply and the conditions of the SOC and SOH of the energy storage battery; and 5) grid-connection and off-grid switching needs to be carried out, a seamless switching mode is used, and specifically off-grid to grid-connection, planned off-grid and unplanned off-grid are seamlessly switched. According to the invention, the method describes a whole set of solutions of an energy storage unit in the micro-grid, and has the characteristics of typicalness, operability and the like.

Description

technical field [0001] The invention relates to a microgrid-oriented modularized energy storage device optimized configuration and control method, and belongs to the technical field of distributed power sources and microgrids. Background technique [0002] The world's existing photovoltaic, wind power and other new energy power generation are affected by uncertain factors and conditions such as climate and temperature, because their power generation characteristics are random, fluctuating and intermittent, so their large-scale development is inevitable. It will have a significant impact on power grid scheduling and system safe operation. However, the power grid pursues a smooth and stable energy body, and a larger part of the reason lies in whether the local transmission trunk line can completely transmit the new energy power generated by its photovoltaic and wind power to the outside world. There is also whether the local load can be consumed locally, and the situation of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/32H02J3/38
CPCH02J3/32H02J3/381Y02E70/30
Inventor 王建国谢丰丁孝华徐瑞林陈涛李俊杰李哲付明刘如帆
Owner NARI TECH CO LTD
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