Power-system economic dispatching method considering power grid topology optimization

A power system dispatching and economic dispatching technology, applied in system integration technology, information technology support system, computing and other directions, can solve problems such as transmission congestion and conservative dispatching decisions

Active Publication Date: 2015-07-29
STATE GRID CORP OF CHINA +1
View PDF4 Cites 31 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The economic dispatch mentioned in the above patents is an economic decision-making of power generation tracking load under a fixed grid structure. In fact, the topology of the power system has a certain optimization space. Ignoring this feature in the dispatch decision-making will inevitably lead to the conservatism of the dispatch decision-making,

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
  • Power-system economic dispatching method considering power grid topology optimization
  • Power-system economic dispatching method considering power grid topology optimization
  • Power-system economic dispatching method considering power grid topology optimization

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0062] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0063] Such as figure 1 As shown, an optimal reactive power compensation method for distribution network based on the inherent structural characteristics of the power grid, which specifically includes the following steps:

[0064] 1) Calculation parameters such as the cost coefficient and the upper and lower limits of active power of conventional generator sets, transmission branch parameters and maximum transmission capacity, system load power, and renewable energy generation power are given;

[0065] 2) The upper and lower limits of the voltage phase angle are given, and the set of controllable and uncontrollable transmission branches is divided according to the control capability of the control system or based on the system operation experience, and the maximum number of transmission branches allowed to be disconnected is set to build an optimization...

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 power-system economic dispatching method considering power grid topology optimization. A power-system dispatching model using active power of conventional generator sets and output component states of the power grid as decision making factors is provided by incorporating the power grid topology optimization into a power-system economic dispatching model and considering the power grid topology connectivity conditions. Topological connectivity is constrained based on the minimum cutset concept in graph theory so as to judge system topological connectivity. The provided model is solved by combination of genetic algorithm and linear programming primal-dual path following interior algorithm. Conventional generator sets and power grid topology can be preset, economical efficiency of power grid operation is improved on the premise of guaranteeing safety of power grid operation, balance capacity of load power of system generation is improved, renewable energy power generation can be accepted within a larger range, abandonment of renewable energy power generation or load shedding is effectively alleviated, and technical support is provided for intelligent development for power system dispatching.

Description

technical field [0001] The invention relates to the field of electrical engineering, in particular to a power system economic dispatch method for power system short-term operation dispatch considering power grid topology optimization. Background technique [0002] Power system economic dispatch is mainly to cope with changes in load and non-dispatchable power supply, with the goal of system operation economy, while satisfying the physical and technical constraints of system operation, to optimize the active power of conventional generator sets in advance and promote power generation. Balance with the load according to the predicted trajectory, which is essentially an economic decision for power generation to follow the load under the fixed grid structure. Under the new situation, with the continuous advancement of the competition mechanism of the electricity market, the power load presents a diversified development, and renewable energy such as wind and solar power generatio...

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): G06Q10/04G06Q50/06
CPCY02E40/70Y04S10/50
Inventor 李雪亮张杰孙东磊韩学山徐波汪湲刘晓明曹相阳高效海杨斌
Owner STATE GRID CORP OF CHINA
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