Bilateral stochastic power grid dispatching method

US11689024B2 · kind B2 · utility

Assignee

• TSINGHUA UNIVERSITY · CN

Inventors

• Wenchuan Wu · Beijing, CN
• Shuwei Xu · Beijing, CN
• Boming Zhang · Beijing, CN
• Hongbin Sun · Beijing, CN
• Bin Wang · Beijing, CN
• Qinglai Guo · Beijing, CN

Key dates

• Filing date: Jul 23, 2021
• Grant date: Jun 27, 2023
• Expiry date: Aug 18, 2041

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y04S10/50
• WIPO field: IT methods for management
• WIPO sector: Electrical engineering

Abstract

The disclosure relates to a two-side stochastic dispatching method for a power grid. By analyzing historical data of wind power, the Gaussian mixture distribution is fitted by software. For certain power system parameters, a two-side chance-constrained stochastic dispatching model is established. The hyperbolic tangent function is used to analyze and approximate cumulative distribution functions of random variables in the reserve demand constraint and the power flow constraint, to convert the two-side chance constraint into a deterministic constraint. The disclosure can have the advantage of using the hyperbolic tangent function to convert the two-side chance constraint containing risk levels and random variables into the solvable deterministic convex constraint, effectively improving the solution efficiency of the model, and providing decision makers with a more reasonable dispatching basis.