Multi-mode operation control method and multi-mode operation control system for flow battery

A multi-mode operation, battery system technology, applied in fuel cell control, fuel cells, fuel cell additives, etc., can solve problems such as no solutions yet

Active Publication Date: 2015-11-11
DALIAN RONGKE POWER
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  • Application Information

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Problems solved by technology

The flow battery system should have corresponding control strategies for different power

Method used

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  • Multi-mode operation control method and multi-mode operation control system for flow battery
  • Multi-mode operation control method and multi-mode operation control system for flow battery
  • Multi-mode operation control method and multi-mode operation control system for flow battery

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Embodiment Construction

[0055] Such as figure 1 with figure 2 A method for controlling multi-mode operation of a liquid flow battery includes the following steps:

[0056] Step 1: Determine the operating mode of the flow battery system according to the change of the given power scheduling value of the flow battery system; the power scheduling value is a charging power scheduling value or a discharging power scheduling value;

[0057] Step 2: Obtain the number of battery system subunits that should be in the running state through the maximum power scheduling value within a preset time; the battery system subunit includes at least one battery stack, positive storage tank, negative storage tank, circulation pump and pipeline system;

[0058] Step 3: Obtain the SOC value of each battery system subunit, arrange the sequence relationship of each battery system subunit according to the order of the SOC value, and control the operation of the corresponding number of battery system subunits in the front ac...

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Abstract

The invention discloses a multi-mode operation control method and a multi-mode operation control system for a flow battery. The control method comprises the following steps: determining the operation mode of a flow battery system; acquiring the value of the number of battery system sub-units which should be in an operation state; acquiring the stress optical coefficient (SOC) values of various battery system sub-units, and arranging the sequenced relationship among the battery system sub-units according to the size order of the SOC values, and controlling a corresponding number of front battery system sub-units to operate according to the arrangement result; determining charging power or discharging power of the battery system sub-units in operation; and controlling the operation states of the battery system sub-units by combining the determined operation mode of the flow battery system according to the charging power or the discharging power of the battery system sub-units. According to the multi-mode operation control method and system, different operation modes can be carried out according to different power scheduling requirements; and on the basis that other secondary batteries do not need to be matched, the requirements of different power outputs and response capabilities are realized through the flow battery system.

Description

technical field [0001] The invention relates to the technical field of liquid flow batteries, in particular to a multi-mode operation control method and system for a liquid flow battery. Background technique [0002] Flow batteries have many advantages that other conventional batteries do not have, such as good safety, long life, large storage capacity, separate and adjustable power and capacity, freedom of site selection, cleanliness and environmental protection. In practical applications, liquid flow batteries can be widely used in renewable energy power generation systems such as wind energy and solar energy as energy storage systems, so that the generated electricity can be output continuously and stably; The power in low valleys is stored and output during peak power consumption to balance power supply and demand; in addition, it can also be used as an emergency power system and backup power station, etc., which is considered to be one of the most promising energy stora...

Claims

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Application Information

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IPC IPC(8): H01M8/04H01M8/18
CPCH01M8/04298H01M8/04619H01M8/0494H01M8/04992H01M8/188Y02E60/50
Inventor 张宇张华民赵海军李颖王晓丽
Owner DALIAN RONGKE POWER
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