Micro-grid hybrid energy storage system based on flywheel energy storage and control method

A hybrid energy storage system and flywheel energy storage technology, which is applied in the field of flywheel energy storage, can solve the problems of difficult coordination and control of various energy storage systems, and does not consider the influencing factors of photovoltaic power plants, so as to prevent power fluctuations and improve battery life. Effect

Active Publication Date: 2020-07-10
JIANGSU DONGYUAN ELECTRIC APPLIANCEGROUP
View PDF6 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There has been some research on the multivariate hybrid energy storage system in China, but most of the multivariate hybrid energy storage systems have not considered the influence factors of photovoltaic power plants. Coordinated control of energy storage systems is a technical problem

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Micro-grid hybrid energy storage system based on flywheel energy storage and control method
  • Micro-grid hybrid energy storage system based on flywheel energy storage and control method
  • Micro-grid hybrid energy storage system based on flywheel energy storage and control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0079] A control method of a microgrid hybrid energy storage system based on flywheel energy storage is as follows:

[0080] The operation mode of the hybrid energy storage system is determined according to the flywheel speed, the state of charge of the battery and the power generation state of the photovoltaic power station.

[0081] 1. When the production capacity of the photovoltaic power station is lower than the energy demand of the user load, and the flywheel speed is greater than the set lower threshold:

[0082] If the state of charge of the battery is greater than the minimum limit, part of the energy difference between the photovoltaic power plant's production capacity and the user's load energy demand is provided by the battery, and the other part of the energy difference is provided by the flywheel to attenuate the peak energy demand of the user's load. When the energy system cannot fully meet the energy demand of the user load, the grid will continue to provide en...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a micro-grid hybrid energy storage system based on flywheel energy storage and a control method. The micro-grid hybrid energy storage system based on flywheel energy storage comprises a photovoltaic power generation system, a hybrid energy storage system, a user load and a power grid. The photovoltaic power generation system is electrically connected with the hybrid energystorage system and the power grid. The user load is arranged between the photovoltaic power generation system and the power grid. According to the control method of the micro-grid hybrid energy storage system based on flywheel energy storage, the operation mode of the hybrid energy storage system is determined according to the rotating speed of a flywheel, the state of charge of a battery and thepower generation state of a photovoltaic power station, and there are four operation modes. According to the invention, the photovoltaic power generation system in the micro-grid is coordinated with the battery and the flywheel to operate, so that power fluctuation can be prevented, the service life of the battery is prolonged, and the whole power supply process is more economical.

Description

technical field [0001] The invention relates to an energy storage system and a control method, in particular to a micro-grid hybrid energy storage system and a control method based on flywheel energy storage, and belongs to the technical field of flywheel energy storage. Background technique [0002] Due to the rapid development of the application of micro-grids, the optimal utilization of photovoltaic power generation resources in a wider range has been realized, and the electrification of remote mountainous islands and mobile vehicles has promoted the development of power marketization. As a small-scale power grid, microgrid has large fluctuations and uncertainties in its power generation and load, which has caused a large burden on the power grid. Especially in the military field, load fluctuations are even more impossible to predict effectively and more intense. Among them, the impact load has many hazards to the power grid with the characteristics of short time and larg...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H02J3/38H02J3/30
CPCH02J3/30Y02E10/56Y02E60/16Y02E70/30
Inventor 季胜蓝李洪亮林伟徐兵孙美
Owner JIANGSU DONGYUAN ELECTRIC APPLIANCEGROUP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap