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Economic optimized dispatching method for energy storage power stations

An energy storage power station, economic optimization technology, applied in the direction of electric energy storage systems, electrical components, etc., can solve problems such as no mature solutions

Active Publication Date: 2014-12-31
CHINA ELECTRIC POWER RES INST +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the domestic MW-level energy storage power station is in the demonstration operation stage, and the optimal dispatching strategy of the energy storage power station is still in the theoretical research stage, and there is no recognized mature solution for the time being

Method used

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  • Economic optimized dispatching method for energy storage power stations
  • Economic optimized dispatching method for energy storage power stations
  • Economic optimized dispatching method for energy storage power stations

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0177] 1) Assign values ​​to each parameter as shown in Table 1-Table 3 below:

[0178] Table 1 shows the same fixed parameters for each independently adjustable battery pack

[0179]

[0180]

[0181] Table 2 shows the different fixed parameters and non-fixed parameters of each independently adjustable battery pack

[0182]

[0183] Table 3 shows the non-fixed parameters of each independently adjustable battery pack

[0184]

[0185] 2) The value of the constraints are as follows:

[0186] I. Pick (P Ni is the rated power of the independently adjustable battery pack, i∈{1,2,3,4});

[0187] II. Pick (P Ni is the rated power of the independently adjustable battery pack, i∈{1,2,3,4});

[0188] III. SOC i min ≤ SOC i ≤ SOC i max , Pick SOC i ...

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Abstract

The invention relates to an economic optimized dispatching method for energy storage power stations. A system utilized in the economic optimized dispatching method comprises independent adjustable battery packs, a transformer, a transformer bus, and an energy storage monitoring system power dispatching center, wherein the independent adjustable battery packs are connected on the bus on the low-voltage side of the transformer, and the transformer and the energy storage monitoring system power dispatching center are sequentially communicated with a power grid dispatching system. The economic optimized dispatching method includes the steps of initializing data of a energy storage power station; confirming the number of the independent adjustable battery packs; reading operation parameters of the independent adjustable battery packs and uploading the same to the energy storage monitoring system power dispatching center; confirming the optimum economic optimized dispatching scheme to obtain the optimum economic optimized dispatching model; and outputting a power dispatching command of the battery packs of the energy storage power station. Concrete structure of the energy storage power station and technical characteristics of energy storage packs are fully taken into consideration, the lowest total cost is taken as the optimizing object, power demand of battery operation and dispatching is taken as a limiting condition, and the economic optimized dispatching method is simultaneously applicable to energy type energy storage power stations and power type energy storage power stations.

Description

technical field [0001] The invention relates to the technical field of electric energy storage system operation and optimal dispatching, in particular to an economical optimal dispatching method of an energy storage power station. Background technique [0002] A large-scale energy storage power station is composed of multiple and multi-type energy storage systems. The number of batteries is large and the composition is complex. An optimized scheduling strategy is one of the important basis for ensuring the economical, safe and reliable operation of the entire power station. After the energy storage power station receives the grid power scheduling command, it calculates through a reasonable allocation principle, and then sends the calculated power value to each energy storage branch to meet the overall grid scheduling power requirements and optimize the operation of the energy storage system The goal. At present, the domestic MW-level energy storage power station is in the d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J15/00
Inventor 叶季蕾薛金花吴福保杨波
Owner CHINA ELECTRIC POWER RES INST
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