Method for controlling hybrid energy storage system based on fuzzy logic controller

A hybrid energy storage system and fuzzy logic technology, applied in the direction of AC network circuits, electrical components, circuit devices, etc., can solve the problem of reducing the peak current of the battery, and achieve the effect of reducing deep discharge and peak current, and improving work efficiency.

Active Publication Date: 2017-05-31
SOUTHEAST UNIV +1
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Problems solved by technology

[0003] Purpose of the invention: The technical problem to be solved by the present invention is to provide a hybrid energy storage system control method based on a fuzzy logi

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  • Method for controlling hybrid energy storage system based on fuzzy logic controller
  • Method for controlling hybrid energy storage system based on fuzzy logic controller
  • Method for controlling hybrid energy storage system based on fuzzy logic controller

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings.

[0027] A hybrid energy storage system control method based on a fuzzy logic controller of the present invention is used to stabilize the power fluctuations of distributed power sources. The system structure is as follows figure 1 shown.

[0028] A hybrid energy storage system control method based on a fuzzy logic controller of the present invention is characterized in that it includes a low-pass filter, a fuzzy logic controller, a particle swarm optimization algorithm, a supercapacitor SOP, a supercapacitor, and a storage battery. The role of the low-pass filter is to decompose the power fluctuation signal into high-frequency signals and low-frequency signals; the role of the fuzzy logic controller is to obtain the control signal for charging and discharging the supercapacitor through a logical relationship between the input low-frequency signal and the supercapacitor ...

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Abstract

The invention discloses a method for controlling a hybrid energy storage system based on a fuzzy logic controller. The method mainly comprises a low pass filter, the fuzzy logic controller and a PSO (particle swarm optimization) algorithm, wherein the low pass filter is used for decomposing a power fluctuating signal into a high-frequency signal and a low-frequency signal; the fuzzy logic controller is used for processing the inputted low-frequency signal and an SOC (system on chip) signal of a supercapacitor through a logic relationship so as to obtain a control signal for charging and discharging of the supercapacitor; the PSO algorithm is used for optimizing the parameters of a membership function of the fuzzy logic controller. The method has the advantages that the depth discharging and peak current of a storage battery can be reduced, and the working efficiency of the hybrid energy storage system is improved.

Description

technical field [0001] The invention relates to a control method for a hybrid energy storage system, in particular to a control method for a hybrid energy storage system based on a fuzzy logic controller. Background technique [0002] Vigorously developing clean energy is one of the effective means to solve the global energy crisis. The power generation efficiency of clean energy represented by wind energy and solar energy is constantly improving, and the marginal cost of power generation is almost zero. It is one of the preferred options for replacing thermal power plants in the future. However, the intermittency of wind power and photovoltaic power generation is the main problem hindering the large-scale development of renewable energy power generation. The usual solution is to combine renewable energy power generation with energy storage, and use energy storage to stabilize the randomness of renewable energy output. , but the frequent charging and discharging of the ener...

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Application Information

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IPC IPC(8): H02J3/32H02J3/38
CPCH02J3/32H02J3/382
Inventor 黄学良孙厚涛季振亚袁晓冬李强吕振华柳丹
Owner SOUTHEAST UNIV
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