Micro-grid optimal scheduling method based on improved bat algorithm

A technology for optimal scheduling and bat algorithm, which is applied in design optimization/simulation, power generation prediction and calculation in AC networks, etc., can solve problems that cannot meet the accuracy and economy of microgrid scheduling, and have multiple and complex objective functions and constraints and other problems, to achieve the effect of improving diversity and global optimization ability, good convergence speed and optimization ability, and improving efficiency and accuracy

Active Publication Date: 2021-10-08
STATE GRID SHANDONG ELECTRIC POWER CO JINING CITY RENCHENG DISTRICT POWER SUPPLY CO +2
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Problems solved by technology

Therefore, microgrid optimal scheduling is a complex optimization problem. There are many objective functions and constraints in microgrid optimal scheduling. Traditional optimization algorithms are not suitable for solving microgrid optimal scheduling problems, and cannot meet the accuracy and economical requirements of microgrid scheduling. sexual demands
[0006] Aiming at the above-mentioned problems of low efficiency and low accuracy of micro-grid optimization due to the fact that the existing technology cannot meet the design requirements when optimizing the micro-grid, no effective solution has been proposed yet

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  • Micro-grid optimal scheduling method based on improved bat algorithm
  • Micro-grid optimal scheduling method based on improved bat algorithm
  • Micro-grid optimal scheduling method based on improved bat algorithm

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[0016] The present disclosure will be further described below in conjunction with the accompanying drawings and embodiments.

[0017] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.

[0018] It should be noted that the terminology used herein is only for describing specific embodiments, and is not intended to limit the exemplary embodiments according to the present disclosure. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

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Abstract

The invention provides a micro-grid optimal scheduling method based on an improved bat algorithm. The method comprises the following steps of obtaining the original data of a micro-grid, and constructing a micro-grid optimal scheduling model with comprehensive benefit operation as a target function, considering errors of output prediction and load prediction of high-permeability renewable energy sources in a micro-grid, taking power balance constraint, output constraint of each power generation unit, ramp rate constraint of a controllable power generation unit, transmission power constraint of a tie line and charge and discharge capacity constraint of an energy storage device as constraint conditions, and improving a bat algorithm based on adaptive difference, carrying out rapid optimization through the bat algorithm, adopting a fitness good and bad sorting strategy, taking the obtained population as a parent population of a differential evolution algorithm, carrying out corresponding variation, interaction and selection operations on the parent population, searching an optimal solution of the micro-grid optimal scheduling model in iteration, and obtaining an optimal scheme of micro-grid scheduling.

Description

technical field [0001] The disclosure belongs to the technical field of power grid dispatching, and in particular relates to an optimal dispatching method for a micro-grid based on an improved bat algorithm. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] Micro-Grid (MG for short) refers to a small power generation and distribution system composed of distributed power sources, energy storage devices, energy conversion devices, loads, monitoring and protection devices, etc. Commonly used distributed power sources include photovoltaic power generation, wind power generation, micro gas turbines, fuel cells, diesel generators, and energy storage devices. [0004] The microgrid can not only eliminate the adverse effects of distributed power grid connection, but also play a supporting role in the large power grid. First of all, the emergence ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02J3/46H02J3/48H02J3/32G06F30/27G06N3/00G06Q10/04G06Q50/06
CPCH02J3/003H02J3/004H02J3/466H02J3/48H02J3/32G06F30/27G06Q10/04G06Q50/06G06N3/006G06F2113/04H02J2203/20Y04S10/50Y02E70/30
Inventor 王峰边宁陶乃绘楚凯楠王延梅谢继信张慧
Owner STATE GRID SHANDONG ELECTRIC POWER CO JINING CITY RENCHENG DISTRICT POWER SUPPLY CO
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