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

Robust unit combination method based on multi-band uncertain set

A robust unit and unit combination technology, which is used in instruments, data processing applications, wind power generation, etc.

Active Publication Date: 2019-09-17
ELECTRIC POWER RES INST STATE GRID SHANXI ELECTRIC POWER +2
View PDF7 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above studies have done very meaningful work, but the above methods all assume that the forecast errors between the scheduling periods are independent of each other

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
  • Robust unit combination method based on multi-band uncertain set
  • Robust unit combination method based on multi-band uncertain set
  • Robust unit combination method based on multi-band uncertain set

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0129] In this section, the effectiveness and advantages of the proposed robust SCUC method are illustrated. These numerical cases are based on a modified IEEE 118 bus system. The system consists of 54 units, a wind farm and 186 transmission lines. A robust SCUC model was solved using YALMIP and Gurobi-8.0.1 on MATLAB 2017b.

[0130] In order to analyze and consider the impact of wind power / load forecast error time correlation on uncertainty sets, three unit combination models are compared.

[0131] Model 1) Traditional Safety Constrained Unit Combination (SCUC). The deterministic optimization algorithm is adopted, and the wind power and load forecasting errors are not considered.

[0132] Model 2) Robust Crew Combination (RUC). Use traditional uncertain set modeling methods and consider uncertain budgets.

[0133] Model 3) Robust Unit Combination (TRUC) Considering Time Correlation of Wind Power and Load Forecast Errors.

[0134] Based on the historical data provided by...

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 robust unit combination method based on a multi-band uncertain set in the technical field of power system dispatching automation. By analyzing the wind power and load historical data provided by Elia, a temporal autocorrelation exists between wind power and load prediction errors, a prediction error time correlation constraint is proposed, and the constraint is approximated to a linear constraint by using the discrete characteristics of the uncertain set. The time correlation constraint and the multi-band uncertainty set are combined to accurately capture uncertain variables of fluctuation levels at different time periods. In addition, the robust unit combination is solved by using a Benders decomposition method and a C&CG method. A test result shows that the method can effectively reduce the conservativeness of the uncertain set, and the economic efficiency of the system operation is improved while the robustness of a UC result is ensured.

Description

technical field [0001] The invention belongs to the technical field of electric power system dispatching automation, and in particular relates to a robust unit combination method based on multi-band uncertain sets. Background technique [0002] With the increasing proportion of wind power connected to the grid and the advancement and deepening of power market reforms, uncertain factors in the power grid are gradually increasing. In order to better grasp the impact of various uncertainties on dispatching, power system generation planning is transformed from a deterministic problem to an uncertain one. Incorporating uncertainty into SCUC problems is challenging. Stochastic optimization, chance-constrained programming, and robust optimization are applied in the field of power system dispatching. Stochastic optimization generates uncertain scenarios through probability distribution, and solves deterministic optimization problems for each scenario separately, with the decision ...

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): H02J3/38H02J3/46G06Q10/06G06Q50/06
CPCH02J3/386H02J3/46G06Q10/06312G06Q50/06H02J3/003H02J2203/20Y04S10/50
Inventor 薄利明郑惠萍王玮茹刘志诚刘新元郝捷杨尉薇曲莹程雪婷皮军高宏郭文博陈艳波张智陈浩刘锋
Owner ELECTRIC POWER RES INST STATE GRID SHANXI ELECTRIC POWER
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