Megawatt liquid flow battery energy storage power station real-time power control method and system thereof

A technology of liquid flow battery and energy storage power station, which is applied in the direction of AC network load balancing, etc., and can solve problems such as system power consumption changes

Active Publication Date: 2013-07-03
CHINA ELECTRIC POWER RES INST +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Moreover, as the charging and discharging power of the AC grid-conn...

Method used

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  • Megawatt liquid flow battery energy storage power station real-time power control method and system thereof
  • Megawatt liquid flow battery energy storage power station real-time power control method and system thereof
  • Megawatt liquid flow battery energy storage power station real-time power control method and system thereof

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Embodiment Construction

[0076] The control method and system of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0077] Such as figure 1 As shown, the flow battery energy storage power station of the present invention includes a bidirectional converter and a plurality of flow battery energy storage subunits, and the start and stop control and charging of the flow battery energy storage subunits can be performed through the bidirectional converters. Discharge power command, etc.

[0078] figure 2 A block diagram of the implementation of the real-time power distribution control method of the flow battery energy storage power station is shown. Such as figure 2 As shown, the present invention is realized by a communication module 10 , a data storage and management module 20 , a total power initial distribution controller module 30 , and a real-time power corrector module 40 arranged in a remote server. The communication module 10 in th...

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Abstract

The invention relates to a megawatt liquid flow battery energy storage power station real-time power control method and a system thereof. The method includes the following steps of A), reading total power demand value of a liquid flow battery energy storage power station and related operation data of the power station in real time, and conducting storing and managing on the data; B) calculating initial power command value of liquid flow battery energy storage subelements of the liquid flow battery energy storage power station; C) calculating power command value to be allocated to the liquid flow battery energy storage subelements; and D) after the power command value of the liquid flow battery energy storage subelements is collected, outputting the power command value to the liquid flow battery energy storage power station. The system comprises a communication module, a data storage and management module, a total power initial allocation control module and a real-time power correction module. The method and the system have the advantages of being convenient to operate, easy to achieve and control in the process of actual application and the like. The method and the system can achieve the aims of effectively controlling and allocating of real-time power of the megawatt liquid battery energy storage power station.

Description

technical field [0001] The invention belongs to the technical field of smart grid and energy storage and conversion, and specifically relates to a real-time power control method based on a large-power and large-capacity megawatt-level liquid flow battery energy storage power station, especially suitable for large-scale wind-solar-storage combined power generation systems with megawatts A battery power and battery energy management method for a level battery energy storage power station. Background technique [0002] The National Wind-Storage Storage and Transmission Demonstration Project is the first batch of pilot projects of the State Grid Corporation of China to build a strong and smart grid. It is the world's largest comprehensive renewable energy demonstration project integrating wind power, photovoltaic power generation, energy storage and power transmission projects. Among them, the national wind power storage and transmission demonstration project (phase I) plans to...

Claims

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Application Information

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IPC IPC(8): H02J3/28
Inventor 李相俊惠东王立业徐明刘汉民
Owner CHINA ELECTRIC POWER RES INST
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