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

AC/DC hybrid microgrid optimal configuration method and device

A technology of AC and DC mixing and optimized configuration, which is applied in the direction of circuit devices, AC network circuits, single AC networks with different frequencies, etc.

Pending Publication Date: 2019-04-16
CHINA ELECTRIC POWER RES INST +4
View PDF2 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the research on the AC-DC hybrid microgrid mainly focuses on the operation control, and there is a lack of research on the optimal configuration of the AC-DC hybrid microgrid.

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
  • AC/DC hybrid microgrid optimal configuration method and device
  • AC/DC hybrid microgrid optimal configuration method and device
  • AC/DC hybrid microgrid optimal configuration method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0086] The common AC / DC hybrid microgrid system structure is as follows: figure 1 Shown: This microgrid is a grid-connected type, connected to the grid through the AC side, while the AC side contains a fan, and the DC is connected to the photovoltaic and energy storage units. The AC load and the DC load are respectively connected to the AC bus and the DC bus, and the AC and DC buses are connected through the converter device for power interaction.

[0087] During the stable operation of the system, the wind turbine provides power for the AC load, the DC side load is met by photovoltaic power generation, and the battery is used to stabilize fluctuations and cut peaks and fill valleys. The conventional research on the optimal configuration of AC microgrid basically determines the optimal capacity of each distributed power source in the system through the optimization algorithm, and the optimization goal is usually the economy and security of the system. With the increasing of D...

Embodiment 2

[0137] An AC / DC hybrid micro-grid optimization configuration device provided by an embodiment of the present invention has a structure such as Figure 5 shown, including:

[0138] The calculation module is used to substitute the obtained economic cost and capacity reliability of the AC-DC hybrid microgrid system into the preset optimization model to calculate the optimal installed capacity scheme of the AC-DC hybrid microgrid;

[0139] A configuration module, configured to configure the installed capacity of the AC / DC hybrid microgrid based on the optimal installed capacity scheme;

[0140] Wherein, the optimization model includes: an objective function and constraint conditions constructed with the objective of comprehensively optimizing the economic cost and capacity reliability of the AC / DC hybrid microgrid system.

[0141] Specifically, the objective function is determined as follows:

[0142] max S i =ηB i -δA i

[0143] In the above formula, S i is the comprehensi...

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 relates to an AC / DC hybrid microgrid optimal configuration method and device. The method comprises a step of substituting obtained economical cost and capacity credibility of an AC / DC hybrid microgrid system into a preset optimization model and calculating an optimal installed capacity scheme of an AC / DC hybrid microgrid, and a step of setting the installed capacity of the AC / DC hybrid microgrid based on the optimal installed capacity scheme. According to the technical scheme provided by the invention, appropriate optimization targets are selected and an NSGA-II algorithm is utilized, the balance relationship between the optimization targets is coordinated, the improvement of the evaluation system of the AC / DC hybrid microgrid is facilitated, and a key technical support is provided for the optimal configuration of the AC / DC hybrid microgrid.

Description

technical field [0001] The invention relates to the technical field of optimal configuration of an AC / DC hybrid microgrid and a distribution network, in particular to an optimal configuration method and device for an AC / DC hybrid microgrid. Background technique [0002] In recent years, more and more renewable energy sources have been connected to the grid through microgrids and have been greatly utilized. The AC-DC hybrid microgrid is a small power generation and distribution system composed of distributed power sources, energy storage devices, energy conversion devices, related loads and monitoring and protection devices. It is an autonomous system capable of self-control, protection and management. It combines the advantages of AC and DC microgrids and is the future development trend of microgrids. At present, the research on the AC-DC hybrid microgrid mainly focuses on the operation control, and there is a lack of research on the optimal configuration of the AC-DC hybri...

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): H02J3/02H02J3/06H02J3/46G06Q10/06G06Q50/06
CPCH02J3/02H02J3/06H02J3/46G06Q10/06313G06Q50/06H02J2203/20
Inventor 吴鸣盛万兴寇凌峰于辉季宇郑楠吴红斌杜晓峰潘静陈锋陈煜荣秀婷刘志敏刘春阳曾光
Owner CHINA ELECTRIC POWER RES INST
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