Results 1 to 10 of about 2,379 (141)

The novel outer membrane protein from OprD/Occ family is associated with hypervirulence of carbapenem resistant Acinetobacter baumannii ST2/KL22 [PDF]

Virulence, 2021
Acinetobacter baumannii has become a major healthcare threat that causes nosocomial infections, especially in critically ill patients. The spread of carbapenem-resistant A. baumannii (CRAB) strains has long been a clinical concern.
Mingxi Hua, Jingyuan Liu, Pengcheng Du, Xinzhe Liu, Min Li, Huizhu Wang, Chen Chen, Xinmin Xu, Yu Jiang, Yajie Wang, Hui Zeng, Ang Li   +11 more
doaj   +2 more sources

A New Fractional Particle Swarm Optimization with Entropy Diversity Based Velocity for Reactive Power Planning [PDF]

Entropy, 2020
Optimal Reactive Power Dispatch (ORPD) is the vital concern of network operators in the planning and management of electrical systems to reduce the real and reactive losses of the transmission and distribution system in order to augment the overall ...
Muhammad Waleed Khan, Yasir Muhammad, Muhammad Asif Zahoor Raja, Farman Ullah, Naveed Ishtiaq Chaudhary, Yigang He   +5 more
doaj   +2 more sources

A modified weighted average algorithm for optimal reactive power dispatch considering uncertain load and renewable power [PDF]

Scientific Reports
Optimal reactive power dispatch (ORPD) is a crucial task in modern power systems, aimed at improving system performance by optimizing the flow of reactive power.
Sulaiman Z. Almutairi, Mohamed Ebeed, Ahmed T. Hachemi, Emad A. Mohamed   +3 more
doaj   +2 more sources

Solution of optimal reactive power dispatch by Lévy-flight phasor particle swarm optimization [PDF]

Intelligent Systems with Applications
Optimal reactive power dispatch (ORPD) problems are important tools for the sake of security and economics of power systems. The ORPD problems are nonlinear optimization problems to minimize the real power losses and voltage profile enhancement by ...
Milad Gil, Ebrahim Akbari, Abolfazl Rahimnejad, Mojtaba Ghasemi, S. Andrew Gadsden   +4 more
doaj   +3 more sources

Single and Multiobjective Optimal Reactive Power Dispatch Based on Hybrid Artificial Physics–Particle Swarm Optimization [PDF]

Energies, 2019
The optimal reactive power dispatch (ORPD) problem represents a noncontinuous, nonlinear, highly constrained optimization problem that has recently attracted wide research investigation.
Tawfiq M. Aljohani, Ahmed F. Ebrahim, Osama Mohammed   +2 more
doaj   +3 more sources

RETRACTED ARTICLE: Novel gooseneck barnacle optimization a nature inspired technique for optimizing reactive power within systems of power with electric vehicles

Scientific Reports
The significance of ORPD (Optimal Reactive Power Dispatch) cannot be emphasized within the operation of power systems, particularly according to the growing use of electric vehicles (EVs). Electric vehicles (EVs) have the potential to influence the power
Juntao Zhuang, Chengwei Wang, Qiong Cheng, Samad Nourmohammadi, Khalid A. Alnowibet   +4 more
doaj   +2 more sources

A Novel Stochastic Optimizer Solving Optimal Reactive Power Dispatch Problem Considering Renewable Energy Resources

Energies, 2023
Optimal Reactive Power Dispatch (ORPD is thought of as a noncontinuous, nonlinear global optimization problem. Within the system’s constraints, the ORPD manages to accomplish the reactive power flow.
Mohammed Hamouda Ali, Ahmed Mohammed Attiya Soliman, Mohamed Abdeen, Tarek Kandil, Almoataz Y. Abdelaziz, Adel El-Shahat   +5 more
doaj   +1 more source

A Novel Adaptive Manta-Ray Foraging Optimization for Stochastic ORPD Considering Uncertainties of Wind Power and Load Demand

Mathematics, 2023
The optimal control of reactive powers in electrical systems can improve a system’s performance and security; this can be provided by the optimal reactive power dispatch (ORPD). Under the high penetration of renewable energy resources (RERs) such as wind
Sulaiman Z. Almutairi, Emad A. Mohamed, Fayez F. M. El-Sousy   +2 more
doaj   +1 more source

Sensitive reactive power dispatch solution accomplished with renewable energy allocation using an enhanced coyote optimization algorithm

Ain Shams Engineering Journal, 2021
This study is concerned with solving the optimal reactive power dispatch (ORPD) problem considering the existence of renewable energy resources (RERs).
Amlak Abaza, Asmaa Fawzy, Ragab A. El-Sehiemy, Ali S. Alghamdi, Salah Kamel   +4 more
doaj   +1 more source

A Bi-Level Techno-Economic Optimal Reactive Power Dispatch Considering Wind and Solar Power Integration

IEEE Access, 2023
With urban and rural infrastructure development, the power system is being forced to operate at or near its full capacity. This paper proposes four new methodologies to find the solution to the optimal reactive power dispatch (ORPD) problem, considering ...
Aamir Ali, Ghulam Abbas, Muhammad Usman Keerio, Ezzeddine Touti, Zahoor Ahmed, Osamah Alsalman, Yun-Su Kim   +6 more
doaj   +1 more source