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Home»Science»Multi-Microgrid Optimization with Improved Crayfish Algorithms
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Multi-Microgrid Optimization with Improved Crayfish Algorithms

November 2, 2024No Comments5 Mins Read
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Researchers have developed a groundbreaking optimization algorithm that significantly enhances the performance and efficiency of multi-microgrid (MMG) systems. The new algorithm, called the Chaotic Gaussian Quantum Crayfish Optimization Algorithm (CGQCOA), builds upon the original Crayfish Optimization Algorithm (COA) by incorporating innovative techniques to improve the algorithm’s initial solutions and search capabilities. This research holds immense potential for the future of renewable energy integration and smart grid management, paving the way for more reliable, cost-effective, and environmentally friendly power systems. Microgrid, Renewable energy, Smart grid

Main Content:

Unlocking the Potential of Multi-Microgrids

As the world transitions towards a more sustainable energy future, the integration of power’>solar and microgrid (MG), which allows for the safe and efficient integration of these intermittent renewable sources into the grid. However, as the complexity of the power system increases with the aggregation of multiple MGs, known as a multi-microgrid (MMG), new challenges arise in terms of optimal scheduling and coordination.

Introducing the Chaotic Gaussian Quantum Crayfish Optimization Algorithm

To address these challenges, a team of researchers has developed a groundbreaking optimization algorithm called the Chaotic Gaussian Quantum Crayfish Optimization Algorithm (CGQCOA). This algorithm builds upon the foundation of the original Crayfish Optimization Algorithm (COA), which was inspired by the behavior of crayfish during summer heat avoidance, competition, and foraging.

Key Improvements of CGQCOA:
– Improved Initial Population: The researchers incorporated a logistic-sine hybrid chaotic map to generate a more diverse and randomly distributed initial population, enhancing the algorithm’s ability to find superior initial solutions.
– Enhanced Search Capability: The CGQCOA integrates Quantum Behavior and Gaussian Distribution techniques to improve the global search capability of the algorithm, allowing it to effectively explore the entire feasible solution domain.
– Accelerated Convergence: The introduction of a Nonlinear Control Strategy helps to regulate the algorithm’s convergence speed, ensuring a balance between global exploration and local exploitation for optimal solutions.

Table 1 Overview of MMG optimized scheduling.

Optimizing Multi-Microgrid Systems

The researchers applied the CGQCOA to a multi-microgrid system, considering the complex interactions and energy flow dynamics among the various entities involved, including the Alliance (the operator of the MMG), the Microgrid Operators (MGOs), and the Shared Energy Storage Operator (SESO).

Bi-level Optimization Scheduling Model:
The researchers developed a bi-level optimization scheduling model based on the Stackelberg game theory, which captures the competitive and cooperative relationships among the different subjects. The upper-level model aims to maximize the revenue of the Alliance, while the lower-level model focuses on maximizing the revenue of the MGOs.

Impressive Performance and Real-world Implications

The simulation results demonstrate the superiority of the CGQCOA compared to other optimization algorithms, including the original COA, in terms of solving accuracy and convergence speed. Specifically, the relative errors of the CGQCOA optimization outcomes were significantly reduced, ranging from 16.55% to 98.74% compared to the original COA.

figure 1
Figure 1

Furthermore, the proposed scheduling strategy utilizing the CGQCOA led to tangible benefits for the various entities within the MMG system:
– The revenue of the MGOs increased by 0.73% to 1.17%
– The penalty cost for pollutant emissions decreased by 5.9% to 12.68%
– The revenue of the SESO increased by approximately 2%

These findings demonstrate the effectiveness of the CGQCOA in enhancing the economic and environmental performance of MMG systems, paving the way for more sustainable and efficient power grid management.

Broader Implications and Future Research

The development of the CGQCOA represents a significant advancement in the field of intelligent optimization algorithms, with potential applications extending beyond the realm of multi-microgrid systems. The algorithm’s ability to overcome challenges such as local narrowness and slow convergence can be valuable in a wide range of optimization problems, from logistics and transportation to resource allocation and scheduling.

figure 2
Figure 2

As the energy landscape continues to evolve, further research is needed to address the complexities and uncertainties inherent in the integration of renewable energy sources. The researchers suggest that future studies should explore the impact of trading mechanisms and communication delays on MMG scheduling, as well as the development of optimization strategies under uncertain conditions.

The groundbreaking work of Dongmei Yan, Hongkun Wang, Yujie Gao, Shiji Tian, and Hong Zhang has the potential to revolutionize the way we manage and optimize multi-microgrid systems, paving the way for a more sustainable, reliable, and cost-effective energy future.

Author credit: This article is based on research by Dongmei Yan, Hongkun Wang, Yujie Gao, Shiji Tian, Hong Zhang.


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crayfish optimization Gaussian distribution marine renewable energy multi-microgrid optimization algorithms quantum behavior smart grid Stackelberg game
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