The static var compensator (SVC) is a cost-effective device in flexible AC transmission system (FACTS) family.We introduce an improved artificial hummingbird algorithm (IAHA) for optimal allocation of SVCs in distribu...The static var compensator (SVC) is a cost-effective device in flexible AC transmission system (FACTS) family.We introduce an improved artificial hummingbird algorithm (IAHA) for optimal allocation of SVCs in distribution networks to maximize energy efficiency.Three loading levels (low,medium,and high) per day are investigated.The proposed IAHA is evaluated on the IEEE 33-bus distribution network (DN) and 69-bus DN.The proposed IAHA demonstrates notable improvements in cost savings and voltage profile compared with the conventional artificial hummingbird algorithm (AHA).In addition,it enhances energy savings across various loading conditions and outperforms the conventional AHA in both best and average performance metrics.Although raising the compensation limit initially increases cost savings,the benefits decrease beyond a threshold,highlighting the importance of balancing the compensation levels for maximum efficiency.展开更多
Based on the current cloud computing resources security distribution model’s problem that the optimization effect is not high and the convergence is not good, this paper puts forward a cloud computing resources secur...Based on the current cloud computing resources security distribution model’s problem that the optimization effect is not high and the convergence is not good, this paper puts forward a cloud computing resources security distribution model based on improved artificial firefly algorithm. First of all, according to characteristics of the artificial fireflies swarm algorithm and the complex method, it incorporates the ideas of complex method into the artificial firefly algorithm, uses the complex method to guide the search of artificial fireflies in population, and then introduces local search operator in the firefly mobile mechanism, in order to improve the searching efficiency and convergence precision of algorithm. Simulation results show that, the cloud computing resources security distribution model based on improved artificial firefly algorithm proposed in this paper has good convergence effect and optimum efficiency.展开更多
基金Prince Sattam bin Abdulaziz University for funding this research work through the project number PSAU/2024/01/31685.
摘要The static var compensator (SVC) is a cost-effective device in flexible AC transmission system (FACTS) family.We introduce an improved artificial hummingbird algorithm (IAHA) for optimal allocation of SVCs in distribution networks to maximize energy efficiency.Three loading levels (low,medium,and high) per day are investigated.The proposed IAHA is evaluated on the IEEE 33-bus distribution network (DN) and 69-bus DN.The proposed IAHA demonstrates notable improvements in cost savings and voltage profile compared with the conventional artificial hummingbird algorithm (AHA).In addition,it enhances energy savings across various loading conditions and outperforms the conventional AHA in both best and average performance metrics.Although raising the compensation limit initially increases cost savings,the benefits decrease beyond a threshold,highlighting the importance of balancing the compensation levels for maximum efficiency.
摘要Based on the current cloud computing resources security distribution model’s problem that the optimization effect is not high and the convergence is not good, this paper puts forward a cloud computing resources security distribution model based on improved artificial firefly algorithm. First of all, according to characteristics of the artificial fireflies swarm algorithm and the complex method, it incorporates the ideas of complex method into the artificial firefly algorithm, uses the complex method to guide the search of artificial fireflies in population, and then introduces local search operator in the firefly mobile mechanism, in order to improve the searching efficiency and convergence precision of algorithm. Simulation results show that, the cloud computing resources security distribution model based on improved artificial firefly algorithm proposed in this paper has good convergence effect and optimum efficiency.