Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Control method of hybrid energy storage in wind-solar complementary microgrid

A wind-solar complementary and hybrid energy storage technology, which is applied in the energy industry, sustainable manufacturing/processing, AC network load balancing, etc., can solve the problem that the energy storage device cannot meet the power and energy at the same time, so as to reduce the number of charging and discharging cycles, Effects of improving stability and flexibility and improving reliability

Inactive Publication Date: 2017-06-20
姚秋丽
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that a single energy storage device cannot meet both power and energy requirements

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
  • Control method of hybrid energy storage in wind-solar complementary microgrid
  • Control method of hybrid energy storage in wind-solar complementary microgrid
  • Control method of hybrid energy storage in wind-solar complementary microgrid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] figure 1 Among them, the components are: asynchronous wind power generation unit (mainly composed of wind turbine, transmission, asynchronous generator and pitch control system), photovoltaic unit (mainly composed of photovoltaic array, BOOST circuit, LC filter and its control system) , energy storage unit (hybrid energy storage system composed of supercapacitor and battery) and load. At the same time, the microgrid is connected to the distribution network through a static switch at the common connection point.

[0016] figure 2 The medium and medium hybrid energy storage systems adopt a bipolar converter structure. The bipolar converter circuit is composed of a front-stage DC / DC converter and a rear-stage DC / AC converter. Among them, the DC / DC converter allows the bidirectional flow of energy, controlled by PWM, works in the step-down mode when charging, and works in the boost mode when discharging; the DC / AC converter is a three-phase power supply type bidirectiona...

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

A control method of hybrid energy storage in a wind-solar complementary microgrid comprises three parts: energy storage unit VSC control, storage battery energy storage unit control and super capacitor energy storage unit control. The application of a hybrid energy storage unit which combines the advantages of battery energy storage technology and super capacitor energy storage technology in the microgrid can improve the reliability of the microgrid, alleviates the imbalance of the power supply and demand, and improves the electrical energy quality and system stability and flexibility. The super capacitor shares the electric quantity of a frequently fluctuating part, reduces the number of charge-discharge cycles of the storage battery, and prolongs the service life of the storage battery so as to enhance system economical efficiency.

Description

technical field [0001] The invention relates to a wind-solar complementary microgrid, in particular to a control method for hybrid energy storage in the wind-solar complementary microgrid. Background technique [0002] With the increasing scarcity of traditional energy and the increasingly serious environmental pollution, green new energy has received more and more attention. Wind energy and solar energy, as two commonly used green new energy sources, have the characteristics of sufficient energy, wide distribution, environmental protection and cleanliness. In order to make up for the shortcomings of the two energy sources in terms of seasons and climates, the wind and solar hybrid system is used to combine the two natural complementarities and the matching of time and space, which improves the stability and practicability of the system and improves the energy efficiency. For the utilization of new energy. As an advanced structural form of distributed energy such as wind e...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/32H02J3/38
CPCY02P80/14
Inventor 姚秋丽
Owner 姚秋丽
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com