Distributed frequency control method and device for power system

A power system and frequency control technology, applied in circuit devices, electrical components, AC network circuits, etc., can solve problems such as power system instability, limit the feasibility of existing research, and achieve the effect of satisfying operation constraints and simple control

Active Publication Date: 2018-07-03
TSINGHUA UNIV
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This will result in a mathematically feasible solution, but it cannot be realized in the actual power system, and even cause the power system to be unstable, which greatly limits the feasibility of the existing research in the actual power system.

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 frequency control method and device for power system
  • Distributed frequency control method and device for power system
  • Distributed frequency control method and device for power system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0018] like figure 1 As shown, an embodiment of the present invention provides a distributed frequency control method for a power system, including:

[0019] S1, based on the power generation capacity of the controllable power sources in each grid area of ​​the power system, the controllable load capacity, and the virtual phase angle difference between each grid area and other grid areas in the power system except each grid area , and the operating constraints of the power system, determine the control commands of the controllable power sources in each grid area, and the control commands of the controllable loads in each grid area; the operating constraints include the po...

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 provides a distributed frequency control method and device for a power system. The method comprises steps of: S1, based on the power generation amount of the controllable power source ineach power grid region of the power system, the controllable load capacity, the virtual phase angle difference between the lines between each power grid region and other power grid regions outside each power grid region, and the operating constraints of the power system, determining the control command for the controllable power source in each power grid region, and the control command of the controllable load in each power grid region, wherein the operating constraints include the power generation amount constraint of the controllable power source and the constraint of the controllable loadcapacity; and S2, according to the control command of the controllable power source in each power grid region and the control command of the controllable load in each power grid region, controlling the frequency of the power system to the rated frequency. The control method is simple, meets operational constraints, and can adapt to distributed frequency control after large-scale renewable energy access.

Description

technical field [0001] The present invention relates to the field of power system control, and more specifically, to a distributed frequency control method and device for a power system. Background technique [0002] With the access of a large number of distributed power sources such as photovoltaic power generation and wind power generation, the traditional power system is becoming larger and more complex in terms of scale, structure and movement mode. How to realize the stable and optimal operation of complex power systems has become a severe challenge. [0003] At present, each area in the power system maintains the system frequency at a rated value by adjusting the controllable resources in the area. However, after large-scale photovoltaic power generation, wind power generation and other distributed power sources are connected to the system, due to the rapid changes in their output, it is easy to cause large and rapid fluctuations in the system frequency. At this time...

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): H02J3/46H02J3/38
CPCH02J3/382H02J3/46
Inventor 梅生伟王召健刘锋陈来军黄少伟
Owner TSINGHUA 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