Power system economic load distribution method based on improved whale algorithm

An economical load distribution and power system technology, applied in the direction of constraint-based CAD, electrical components, circuit devices, etc., can solve problems such as premature convergence and falling into local optimum

Pending Publication Date: 2021-04-16
GUANGZHOU UNIVERSITY
View PDF6 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The high optimization accuracy and speed of the WOA series of algorithms and their good performance in large-scale optimization problems make them a good choice for solvi

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
  • Power system economic load distribution method based on improved whale algorithm
  • Power system economic load distribution method based on improved whale algorithm
  • Power system economic load distribution method based on improved whale algorithm

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0068] An economic load distribution method for power system based on improved whale algorithm, such as figure 1 shown, including the following steps:

[0069] Step 1: Establish the corresponding constraint expression according to the requirements of the actual power system economic load distribution problem;

[0070] In step 1, the constraints referred to include two types of constraints: equality constraints and inequality constraints. Among them, the equality constraints refer to the conditions that the parameter values ​​satisfy. The economic load distribution constraints mainly include generator operation constraints and power balance constraints.

[0071] The operating constraints of the generator are:

[0072]

[0073] P in the formula i min and P i max are the minimum and maximum values ​​of the active power of the ith generator, respectively.

[0074] The power balance constraint is

[0075]

[0076] where N is the total number of generators; P i is th...

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 power system economic load distribution method based on an improved whale algorithm. The power system economic load distribution method comprises the steps of establishing a corresponding constraint condition expression according to the requirement of a power system economic load distribution problem in practice; establishing an objective function of the power system economic load distribution problem according to the constraint condition, and converting an actual application problem into a solution of a nonlinear programming problem; proposing an improved whale optimization algorithm, and performing optimization solution on the power system economic load distribution problem by utilizing the algorithm; and updating the position by adopting a self-adaptive weight strategy through the improved whale optimization algorithm, updating the position again by an individual through a random differential variation strategy, obtaining the final position before and after the change, and further obtaining the optimal result of economic load distribution of the power system. In order to improve the search capability of the whale optimization algorithm, an adaptive weight and differential variation strategy is introduced, so that the algorithm can perform global search in the early stage and perform accurate local search in the later stage.

Description

technical field [0001] The invention relates to the research field of electric power systems, in particular to an economic load distribution method of electric power systems based on an improved whale algorithm. Background technique [0002] The ELD problem refers to optimizing the start-stop plan of the unit within a certain operating cycle. The load is distributed among the operating units under different constraints, so that the total operating cost of the value function is minimized and the profit is maximized. This is a nonlinear optimization problem. Traditional solutions include classical mathematical methods such as linear programming algorithms and dynamic programming methods. The former can only solve linear problems, and it is necessary to linearize the objective function and constraints of the problem model in advance, which will affect the accuracy of the solution results to a certain extent. Problem models with constraints related to factors such as these ar...

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): H02J3/00G06F30/25G06F111/04
Inventor 刘贵云舒聪李君强彭智敏
Owner GUANGZHOU UNIVERSITY
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