Method of air-conditioning load for participating in secondary frequency modulation of system based on energy storage model building

A technology of air-conditioning load and secondary frequency modulation, which is applied in the direction of AC network circuits, electrical components, circuit devices, etc., and can solve problems such as unrealized applications, lack of underlying physical support, and complicated control processes

Active Publication Date: 2014-11-05
SOUTHEAST UNIV
View PDF3 Cites 23 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, some air-conditioning load control has been implemented, but it lacks the underlying physical support and has strong subjectivity; and the control process is very complicated, which cannot be used in most cases, and can only

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
  • Method of air-conditioning load for participating in secondary frequency modulation of system based on energy storage model building
  • Method of air-conditioning load for participating in secondary frequency modulation of system based on energy storage model building
  • Method of air-conditioning load for participating in secondary frequency modulation of system based on energy storage model building

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0107] Examples:

[0108] 1) The load aggregator reads the parameters of 80,000 controllable air conditioning units in its jurisdiction. The air conditioning unit parameters are shown in Table 1. The calculation time step Δt is taken as 30s:

[0109] Table 1 Air conditioning unit parameters

[0110]

[0111] On this basis, the energy storage model of a single air conditioning unit is established:

[0112] E store ( t k + 1 ) = - [ C ( T max - T out ) / η + RCP rated S ( t k ) - E store ( t k ) ] · e - Δt / RC + C ( T max - T out ) / η + RCP rated S ( t k )

[0113] SOC ( t k ) = E store ( t k ) C ( T max - T min ) / η

[0114] 2) According to the predicted SOC value of each air conditioning unit, two stacks of on_off_stack and off_on_stack ar...

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 method of air-conditioning load for participating in secondary frequency modulation of a system based on energy storage model building. The method comprises the following steps of: building an energy storage model of air-conditioning load; forming two stacks of on-off-stack and off-on-stack of an air-conditioning unit for real-time control according to an SOC (System On Chip) predicted value of each air-conditioner unit; calculating adjustable capacity of the air-conditioning unit administered by a load aggregator, and reporting to a dispatching center; receiving a power adjustment instruction issued from the dispatching center by the load aggregator; and decomposing the power adjustment instruction into start-stop control of each administered air-conditioner unit by the load aggregator according to a certain start-stop strategy of the air-conditioning unit. Based on a commercial model of the load aggregator, a process and a method for the secondary frequency modulation of a large-scale air-conditioning unit participation system are built, the energy storage model is built for the air-conditioning unit, so that the air-conditioning unit can participate in operation and dispatching of a power system like a normal energy storage element, and a basic theory in which the air-conditioning unit serves as a demand response resource to participate in the secondary frequency modulation of the system is formed.

Description

technical field [0001] The invention relates to the field of power system control, in particular to a method for secondary frequency regulation of an air-conditioning load participating in a system based on energy storage modeling. Background technique [0002] In February 2013, the State Grid Corporation of China released the "Opinions on Doing a Good Job of Distributed Power Grid-connected Services", which broke the previous development barrier that distributed power only "grid-connected" but not "on-line". However, due to 1) new energy distributed power sources such as wind power and photovoltaics have intermittent and random output characteristics; 2) users' independent power generation and consumption decisions cause uncertainty in grid power; 3) they are different from large-scale wind farms and other centralized The user-side distributed power generation is non-schedulable, that is, the power grid must fully absorb the distributed power generation, and its large-scale...

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): H02J3/00
Inventor 高赐威陆婷婷
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