Results 41 to 50 of about 7,634 (271)

Modeling FACTS for power flow purposes: A common framework [PDF]

open access: yes, 2014
This paper intends to give a common modeling framework for power flow calculations in power systems with embedded FACTS devices. The proposed method uses the node incidence matrix (Γ) to avoid the problems derived from the widely used admittance matrix.
Arboleya Arboleya, Pablo   +2 more
core   +1 more source

Optimized Asymmetrical Fuzzy‐2DOFTIDF Controller for LFC of Three‐Area Multi‐Sources Interconnected Power System Along With HAE‐FC and UPFC Using a New SOA Algorithm

open access: yesEnergy Science &Engineering, Volume 14, Issue 2, Page 866-886, February 2026.
This study proposes a novel Asymmetrical‐Fuzzy Two‐Degree‐of‐Freedom Tilt‐Integral‐Derivative (AF‐2DOF‐TIDF) controller for load frequency control in a multi‐area, multi‐source power system integrating Hydrogen‐Aqua‐Electrolyzer‐Fuel‐Cell (HAE‐FC) units and a Unified Power Flow Controller (UPFC).
Getaneh Mesfin Meseret, M. Bala Anand
wiley   +1 more source

基于提升故障穿越能力的UPFC重启策略研究及应用

open access: yesGaoya dianqi, 2020
统一潮流控制器(UPFC)是最新一代柔性交流输电系统装置,综合了FACTS元件的多种灵活控制手段。受限于电力电子设备绝缘能力,UPFC故障穿越能力有限。文中在介绍UPFC串联侧故障快速隔离技术的基础上,提出了UPFC配合交流保护重启策略,发生影响UPFC运行的故障时,利用特征量进行故障区域和类型判别,判别为交流电网异常时,进一步根据故障特性,并检测电网运行状态和UPFC运行能力,执行UPFC故障穿越或短时闭锁后自动重启的策略。接着以500 kV苏南UPFC工程为例,介绍了该策略的具体实现方案 ...
林金娇   +4 more
doaj  

Application of UPFC in Fujian 500 kV power grid

open access: yesThe Journal of Engineering, 2019
In order to release the capability restriction of the North–South transmission channels in the 500 kV power grid of Fujian Province, this article studies the application of unified power flow controller (UPFC) to improve the transmission capability under
Meng Li   +7 more
doaj   +1 more source

AI‐Driven Optimization Techniques for Power Quality Improvement in Microgrids: Trends, Techniques, and Future Directions

open access: yesEnergy Science &Engineering, Volume 14, Issue 1, Page 583-610, January 2026.
Decentralized energy systems are gaining momentum, and microgrids have become a vital component of the modern power landscape. Yet, maintaining power quality within these systems presents ongoing challenges due to the presence of nonlinear loads, variable renewable energy sources, and frequent switching operations.
Mahnoor Zahid   +5 more
wiley   +1 more source

Field Compaction Characteristics of Ultra-Thin Porous Friction Course Based on Laboratory Simulation

open access: yesApplied Sciences
As a preventive maintenance treatment, the ultra-thin porous friction course (UPFC) has been widely recognized and used in road maintenance because of its excellent performance and cost effectiveness. The Marshall compaction method (MCM) has been adopted
Xiaobo Du   +4 more
doaj   +1 more source

Influence on the energy conservation of the power system by introducing UPFC

open access: yesThe Journal of Engineering, 2018
The unified power flow controller (UPFC) is an excellent flexible alternating current transmission device, which has a wide range application in the power system.
Feng Chen   +5 more
doaj   +1 more source

Long-Term Economic Model for Allocation of FACTS Devices in Restructured Power System Integrated Wind Generation [PDF]

open access: yes, 2016
This study proposes an approach to optimally allocate multiple types of flexible AC transmission system (FACTS) devices in market-based power systems with wind generation. The main objective is to maximise profit by minimising device investment cost, and
Eladl, Abdelfattah   +2 more
core   +1 more source

Modified unified power flow controller for medium voltage distribution networks

open access: yesIET Generation, Transmission & Distribution, 2022
A conventional unified power flow controllers (UPFCs) can provide power flow control and voltage regulation in medium voltage (MV) distribution networks using partially rated converters.
Mohamed A. Abdelrahman   +4 more
doaj   +1 more source

Metaheuristic‐Based Load Frequency Control of Multi‐Source Renewable Systems With SMES and AC‐DC Parallel Tie‐Lines

open access: yesIET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
This study proposes a hybrid evolutionary exploration algorithm (HEEA) that integrates genetic algorithm and grey wolf optimiser to co‐tune PID controller gains and SMES parameters in a two‐area AC‐DC interconnected renewable system. The proposed method achieves faster convergence, lower ITAE and improved stability compared to existing metaheuristics ...
Md. Shahan Sarker
wiley   +1 more source

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