Distributed active power economic allocation method considering line loss for microgrid

A technology of active power and line loss, applied in circuit devices, AC network circuits, AC network voltage adjustment, etc., can solve problems such as uneconomical distribution and no distributed strategy.

Active Publication Date: 2016-07-06
SOUTHEAST UNIV
View PDF3 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Purpose of the invention: The purpose of the present invention is to solve the problem that the existing micro-grid adopts a centralized method, does not adopt a distributed strategy, and distributes uneconomically, thereby providing a micro-grid distributed active power economic distribution method that takes into account line loss. Using the network los...

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
  • Distributed active power economic allocation method considering line loss for microgrid
  • Distributed active power economic allocation method considering line loss for microgrid
  • Distributed active power economic allocation method considering line loss for microgrid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0033] 1. If figure 1 The present invention discloses a microgrid distributed active power economic distribution method considering line loss.

[0034] (1) Considering the line loss of the microgrid for the distributed power generation with droop control as the primary control, the marginal cost of the distributed power generation is corrected by the network loss correction factor.

[0035] (2) Using the distributed strategy, adjacent nodes exchange node voltage and corrected marginal cost information, and obtain the average corrected marginal cost and global average voltage through the consensus algorithm, which are used for local secondary control and optimize the reference voltage of droop control. By realizing Correct the marginal cost to be consistent, carry out economical distribution of active power among distributed power sources, a...

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 distributed active power economic allocation method considering line loss for a microgrid. With regard to a distributed power supply employing droop control, the marginal cost of each distributed power supply is corrected by a network loss correction factor, and the active power economic allocation is affected by considering line loss; and a distributed strategy based on a consistency algorithm is adopted, and active power economic allocation is achieved by achieving consistency of the marginal cost of each distributed power supply. The marginal cost is corrected and the influence of line loss is considered, compared with an active power allocation method which does not consider the line loss, the method has the advantages that the line loss is lower, the power generation cost of the system is still effectively reduced, and the microgrid economically and stably runs; and an iterative mode of the consistency algorithm is adopted to distributed control, a central controller is not needed to carry out processing on big data, and the method is simple to implement and is suitable for a microgrid system with a variable network structure.

Description

technical field [0001] The invention belongs to the technical field of micro-grid control and optimization, and relates to a micro-grid distributed active power economic distribution method considering line loss. Background technique [0002] Microgrids generally adopt a hierarchical control architecture to achieve stable operation, and the primary control often adopts droop control to achieve autonomous power distribution and rapid response of electrical quantities. Microgrids often use multiple types of distributed power sources in parallel to improve power supply reliability. However, different types of distributed power sources have different power generation costs. The traditional droop control method of distributing power in proportion to capacity can easily lead to high system operating costs. , the economy of the microgrid is poor. [0003] The secondary control can carry out power economic distribution to reduce the cost of system power generation, and often adopts...

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): H02J3/46H02J3/12
CPCH02J3/12H02J3/46H02J2203/20Y02P80/14
Inventor 吴在军苏晨吕振宇窦晓波胡敏强
Owner SOUTHEAST UNIV
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