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An energy management strategy for energy storage-oriented multi-port energy routers

An energy management and multi-port technology, applied in the field of energy management, can solve the problems that cannot be considered as a whole, the operation efficiency of the energy storage unit is low, and it is only for a certain inverter, so as to reduce costs, ensure stability, and optimize scheduling The effect of the function

Active Publication Date: 2022-03-29
NARI TECH CO LTD +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the energy management strategy adopted is only aimed at a single inverter or energy storage converter PCS, and the overall situation cannot be considered overall, and the maximum power output cannot be guaranteed, resulting in low operating efficiency of the energy storage unit.

Method used

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  • An energy management strategy for energy storage-oriented multi-port energy routers
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  • An energy management strategy for energy storage-oriented multi-port energy routers

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Embodiment Construction

[0094] Below in conjunction with accompanying drawing of description, the present invention will be further described.

[0095] The present invention provides an energy storage-oriented multi-port energy router energy management strategy, comprising the following steps:

[0096] 1) According to the electrical wiring diagram of the multi-port energy router, determine its wiring mode, and obtain the working mode and power output characteristics of the DC port and the AC port of the multi-port energy router; the power output characteristics include power magnitude and fluctuation frequency, etc.

[0097] Such as figure 1 As shown, the multi-port energy router includes 6 AC ports and 24 DC ports, the 6 AC ports are responsible for energy interaction with 4 loads and the grid, and the 24 DC ports are responsible for exchanging energy with lead-carbon batteries. The charging and discharging scenarios of the multi-port energy router, such as figure 2 shown.

[0098] 2) According ...

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Abstract

The invention discloses an energy storage-oriented multi-port energy router energy management strategy, comprising the steps of: obtaining the working mode and power output characteristics of the DC port and the AC port of the multi-port energy router; Variable capacity, energy storage system capacity, and grid-connected point reverse power protection requirements, configure energy storage power, and set constraints; according to the operating scenario, consider the discharge depth of lead-carbon batteries and the peak-to-valley difference of the power grid, and divide the day into five periods. The charging and discharging strategy design of energy storage battery, the operating scenario includes two working conditions of discharging and charging, in which the discharging working condition includes the energy management strategy of power correction from shutdown to the discharging process and the discharging process, and the charging working condition includes the shutdown to the charging process and the charging process Energy management strategy for medium power correction; according to the designed energy management strategy, run the energy management strategy for the corresponding time period. Realize the reasonable allocation of charging and discharging power of the energy storage system, and reduce the cost of charging and discharging of energy storage.

Description

technical field [0001] The invention relates to an energy management strategy, in particular to an energy storage-oriented multi-port energy router energy management strategy, which belongs to the technical field of energy management. Background technique [0002] New energy power generation such as photovoltaics and wind power that has been built in the world is affected by uncertain factors and conditions such as climate and temperature. Because of the randomness, volatility and intermittent nature of its power generation characteristics, it is determined that its large-scale development is inevitable. It will have a significant impact on power grid dispatching and system security operation. Energy storage is through the two-way flow of electric energy, which can effectively improve the operation performance of intermittent power supply, enhance the control ability of power system, help to enhance the ability of the power grid to accept new energy, effectively reduce the o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/32
CPCH02J3/32H02J2203/20
Inventor 付明吴琳赵景涛黄堃徐瑞林陈涛周婧婧李俊杰李哲
Owner NARI TECH CO LTD
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