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Power control method and system for battery energy storage power station based on greedy strategy

A battery energy storage and energy storage technology, applied in the direction of AC network load balancing, etc., can solve problems such as the impact of battery life, and achieve the effect of easy implementation and mastery, energy management and real-time control.

Active Publication Date: 2015-11-04
CHINA ELECTRIC POWER RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] From the perspective of battery energy storage, overcharging and overdischarging will affect the life of the battery

Method used

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  • Power control method and system for battery energy storage power station based on greedy strategy
  • Power control method and system for battery energy storage power station based on greedy strategy
  • Power control method and system for battery energy storage power station based on greedy strategy

Examples

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Embodiment Construction

[0038] The control method and system of the present invention will be further described in detail below by taking a lithium battery energy storage power station as an example, with reference to the drawings and specific embodiments.

[0039] like figure 1 As shown, the lithium battery energy storage power station includes lithium battery energy storage units connected in parallel, and each energy storage unit includes a bidirectional converter and a plurality of lithium ion battery packs arranged in parallel. Perform functions such as switching control of the corresponding lithium-ion battery pack and charge and discharge power commands.

[0040] figure 2 It is an implementation block diagram of a real-time power distribution control method and system for a lithium battery energy storage power station based on a greedy strategy.

[0041] like figure 2 As shown, the control system in this example is realized by a communication module 10 , a data storage and management modu...

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Abstract

The invention provides a method and a system for controlling power of a battery energy storage power station based on a greedy strategy. The method comprises the steps of: A, reading relevant data of the battery storage power station in real time and storing the data; B, determining an energy storage unit participating in power distribution of the battery energy storage power station in real time; C, calculating a power command value of the energy storage unit participating in the power distribution; and D, storing the power command value of the energy storage unit participating in the power distribution and outputting the power command value. The system comprises a communication module, a data storage and management module, a greedy algorithm control module and a power distribution control module. The method and system for controlling complete power control of the battery energy storage power station based on the greedy strategy through the modules located in an industrial personal computer, transmit data to an external monitoring platform so as to be monitored, and can realize the purposes of effectively controlling and distributing real-time power of megawatt-grade battery energy storage power stations.

Description

technical field [0001] The invention belongs to the technical field of smart grid and energy storage and conversion, and in particular relates to a greedy strategy-based battery energy storage power station power control method and system thereof, and is especially suitable for batteries of large-scale distributed and centralized energy storage power station grid-connected systems Real-time power and energy management method of energy storage unit. Background technique [0002] With the continuous development of batteries and their integration technologies, the application mode of large-scale distributed and centralized battery energy storage power stations will gradually become a preferred solution. Several large-capacity energy storage batteries commonly used in battery energy storage systems include sodium-sulfur batteries, flow batteries, and lithium-ion batteries. [0003] By reasonably controlling the converters connected to the energy storage equipment, the charging ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/28
Inventor 李相俊惠东郭光朝王立业贾学翠
Owner CHINA ELECTRIC POWER RES INST
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