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

A real-time economic dispatch method considering the flexible climbing capacity provided by wind and storage

An economic dispatching, wind-solar storage technology, applied in the field of power system, can solve the problems of detection and adjustment accuracy, low feasibility, unfavorable, and reduce the pressure of conventional unit climbing, so as to reduce the pressure, reduce the pressure of climbing, and improve the Effects of Accuracy and Reliability

Active Publication Date: 2021-06-08
SHANGHAI MUNICIPAL ELECTRIC POWER CO
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the actual real-time economic dispatching process, when wind power, photovoltaics and energy storage complement each other to provide FRC, they are often restricted by various constraints, and the disclosed patent does not consider the constraints of various constraints, so that the obtained by this method The accuracy and feasibility of FRC detection and adjustment for wind power, photovoltaic and energy storage are not high, which is not conducive to improving the flexibility of the system while reducing the climbing pressure of conventional units and improving the overall economic benefits of system operation sex and reliability

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
  • A real-time economic dispatch method considering the flexible climbing capacity provided by wind and storage
  • A real-time economic dispatch method considering the flexible climbing capacity provided by wind and storage
  • A real-time economic dispatch method considering the flexible climbing capacity provided by wind and storage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0123] This paper takes the improved IEEE 118-node 54-machine system as an example, including 91 load nodes, five 400MW wind farms, nine 300MW photovoltaic power stations, and five 120MWh energy storage power stations. The maximum ramp rate of the wind farm is 20MW / min, the maximum ramp rate of the photovoltaic power station is 12MW / min, the comprehensive energy cost coefficient of the wind / solar / storage system is 75$ / MW h, and the wind / solar / storage provides FRC The price coefficient is generally 20% of the energy cost coefficient. Assuming that the initial state of charge of the energy storage is 0.5, other parameters of the energy storage system are shown in Table 1. The penalty cost coefficients for system load shedding and insufficient FRC are CL=4000$ / MW h, ω=1000$ / MW h respectively, and the proportional coefficients describing the uncertain capacity of wind, solar and storage are respectively η L,u / d =0.01, η w,u / d =0.05, η pv,u / d = 0.06.

[0124] Table 1 Energy sto...

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 present invention relates to a real-time economic scheduling method considering the flexible climbing capacity provided by wind and solar storage, comprising the following steps: S1, establishing the objective function of the real-time economic scheduling model; S2, obtaining the constraint conditions of the real-time economic scheduling model; S3, according to the target Functions and constraints establish a real-time economic dispatch model; S4. The real-time economic dispatch model scrolls to correct the deviation between each energy output value and the upward / downward FRC according to the energy output value at the current moment and the upward / downward FRC and the predicted value at the next moment, And implement real-time economic scheduling. Compared with the prior art, the present invention has the advantages of high accuracy and strong reliability.

Description

technical field [0001] The invention relates to the technical field of electric power systems, in particular to a real-time economic scheduling method considering the flexible climbing capacity provided by wind-solar storage. Background technique [0002] With the large-scale access of renewable energy such as wind power and photovoltaics, the demand for power system flexibility is getting higher and higher, and the lack of flexibility has become the core issue of grid planning and operation. The flexibility of the power system is difficult to quantify, and the flexible ramp capacity (FRC) to quantify the flexibility of the power system is a common and effective method at this stage. FRC refers to the capacity reserved at a certain scheduling moment to meet higher / lower net load fluctuations at subsequent moments. The wind power and photovoltaic output are superimposed on the load as a negative load, and the FRC is called more frequently than the spinning reserve. [0003]...

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 Patents(China)
IPC IPC(8): H02J3/00H02J3/46H02J3/48
CPCH02J3/00H02J3/46H02J3/48Y02E10/76
Inventor 黄阮明王乐何欣芹赵晶晶郭明星庞爱莉
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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