Super-capacitor configuration method adaptive to pulse load power fluctuation stabilization

A load power, super capacitor technology, applied in circuit devices, reducing/preventing power oscillation, AC network circuits, etc., can solve the problem of less research on energy storage capacity configuration

Active Publication Date: 2015-02-04
STATE GRID CORP OF CHINA +3
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  • Application Information

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Problems solved by technology

The research on energy storage configuration focuses on wind and solar hybrid systems, and proposes an estimation algorithm for wind farm energy storage capacity for short-term power grid dispatching, and evaluates the economics and saturation-based capacity all

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  • Super-capacitor configuration method adaptive to pulse load power fluctuation stabilization
  • Super-capacitor configuration method adaptive to pulse load power fluctuation stabilization
  • Super-capacitor configuration method adaptive to pulse load power fluctuation stabilization

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Embodiment Construction

[0037] The technical solution of the present invention will be specifically described below in conjunction with the accompanying drawings.

[0038] The present invention is a supercapacitor configuration scheme suitable for smoothing pulse-type load power fluctuations, which is mainly suitable for smoothing pulse-type load power fluctuations generated in industrial production. The method flow is as follows figure 1 As shown, specifically include the following steps,

[0039] Step 1: Collect industrial production pulse load data, analyze the characteristics of pulse load, and obtain typical daily pulse load impact sample data;

[0040] Step 2: Determine the optimization objectives and constraints related to pulse load stabilization; the optimization objectives are the minimization of economic costs, and the constraints include the maximum impact limit after compensation And meet the daily stable operation conditions of the energy storage system, in which, is the rated power...

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Abstract

The invention relates to a super-capacitor configuration method adaptive to pulse load power fluctuation stabilization. The super-capacitor configuration method includes firstly acquiring industrial production pulse load data, and analyzing the characteristics of the pulse load to obtain typical daily pulse load impact sample data; secondly, determining relevant optimization goals and constraints of the pulse load stabilization; subjecting typical daily pulse load data frequency domain signals after time-frequency conversion to critical frequency search to obtain the critical frequency of the maximum impact limit; finally, considering the optimization goals and the constraints to determine the rated power, the rated capacity and the initial load capacity of an energy storage system of a super-capacitor. By configuring energy storage to alleviate the impact of the pulse load of the industrial production on the power grid, theoretical basis can be provided for the energy storage configuration of the super-capacitor of the pulse load.

Description

technical field [0001] The invention relates to the field of supercapacitor energy storage configuration, in particular to a supercapacitor configuration method adapted to smooth pulse-type load power fluctuations. Background technique [0002] With the continuous expansion of my country's industrial production scale, large-capacity and fluctuating loads have emerged one after another, which puts forward higher requirements for the bearing capacity and stability of the power grid. Due to its own characteristics, the microgrid has small system inertia, insufficient damping, and does not have the anti-disturbance ability of the large power grid. At the moment when the energy demand changes, the distributed power supply cannot meet the demand, so the microgrid needs to rely on energy storage devices (ESS, Energy Storage System) to achieve energy balance. Energy storage is especially important for microgrids with shock loads. [0003] At present, the research on impact load at...

Claims

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Application Information

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IPC IPC(8): H02J3/28
CPCH02J3/24H02J3/28H02J2203/20
Inventor 余希唐田李喜兰邱柳青徐敏姣徐青山
Owner STATE GRID CORP OF CHINA
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