Results 71 to 80 of about 2,109 (236)

AC voltage sag-swell compensator based on unified non-inverting and inverting output voltage AC chopper [PDF]

, 2016
This paper proposes a unified AC chopper topology that can generate both non-inverting and inverting AC voltages. It is therefore suitable for compensating utility voltage sag-swell in domestic consumer and industry infeeds.
Holliday, D., Li, Peng, Williams, B. W.
core   +1 more source

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

Energy 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, Hafiz Mudassir Munir, Mohammad Adeel, Fares Suliaman Alromithy, Mohammad R. Altimania, Ievgen Zaitsev   +5 more
wiley   +1 more source

Modulation strategy of dynamic voltage restorer based on dual-feedforward active disturbance rejection compound controller

Frontiers in Energy Research
Given the contradiction between compensating speed and compensating overshoot in traditional Proportional Integral (PI) control of Dynamic Voltage Restorer (DVR), A Feedforward compensation-active Disturbance Rejection Control (FC-ADRC) strategy based on
Langchen Huang, Weiling Liu, Ning Zhang, Qingyun Yan, Xinwei Wei   +4 more
doaj   +1 more source

Research on dynamic voltage restorer based on self-coupled proportional–integral controller

Energy Reports, 2021
Aiming at dynamic voltage restorer (DVR) needs real-time detection of voltage sag and fast compensation. However, the traditional proportional–integral (PI) control of DVR is difficult to take into account the fast following, immunity, and robustness of ...
Jingran Ma, Jing Bai, Wenjing Wang
doaj   +1 more source

A novel single-phase voltage sag restorer with diode-clamped multilevel bridge [PDF]

, 2014
Author name used in this publication: K. DingAuthor name used in this publication: K. W. E. ChengAuthor name used in this publication: X. D. XueAuthor name used in this publication: C. D.
Cheng, KWE, Ding, K, Divakar, BP, Wang, DH, Wang, SX, Xu, C, Xue, X   +6 more
core  

Strengthening Renewable‐Rich Weak Grids Through Improved Voltage Stability and Fault‐Ride Through Capability

IET Renewable Power Generation, Volume 20, Issue 1, January/December 2026.
To enhance grid stability and resilience in high renewable energy scenarios, this research proposes a cascaded control optimization framework guided by a novel dynamic resilience metric. Validated on a representative Australian grid, the framework significantly reduced voltage overshoot and extended fault clearing times, offering a robust solution for ...
Sadnan Sakib, Muhammad Ahsan Zamee, M. J. Hossain, Md. Biplob Hossain, Md. Ahasan Habib   +4 more
wiley   +1 more source

RETRACTED ARTICLE: Dynamic voltage restorer controller using grade algorithm

Cogent Engineering, 2015
This paper deals with the terminology and various issues about power quality problems. This problem occurs owing to voltage sag, swell, harmonics, and surges.
S. Deepa, M. Ranjani
doaj   +1 more source

Effect of Dynamic Voltage Restorer in Compensating for Voltage Sag and Controlling Harmonics in a Power Distribution System using Fumman Industry as a Case Study [PDF]

, 2014
Different power quality surveys done by researchers identify voltage sags as the most serious power quality problems for industrial customers. Voltage sag can cause serious problems to electric loads that cannot withstand variation in voltage such as
Adejumobi, I. A., Mustapha, A. O., Sesay, S. F., Wara, S.T.   +3 more
core  

VOLTAGE COMPENSATION USING ARTIFICIAL NEURAL NETWORK: A CASE STUDY OF RUMUOLA DISTRIBUTION NETWORK [PDF]

, 2016
 A study of hourly voltage log taken over a period of six months from Rumuola Distribution network Port Harcourt, Rivers State indicates that power quality problems prevalent in the Network are undervoltage/voltage sags and overvoltage/voltage swells ...
Offor, G, Omorogiuwa, E, Uhumnwangho, R
core   +2 more sources

Regional cortical network atrophy predicts progression to dementia in the Lewy body diseases

Alzheimer's &Dementia, Volume 21, Issue 12, December 2025.
Abstract INTRODUCTION The timeline from symptom onset to the loss of independent functioning varies across patients with Lewy body disease (LBD). Here, we investigate whether the magnitude of cortical atrophy within functional networks that subserve cognitive and affective functions has utility in predicting progression to dementia in LBD.
Rong Ye, Thiago Paranhos Pereira, Joseph J. Locascio, Anna E. Goodheart, Erin C. Peterec, Michael Brickhouse, Bradford C. Dickerson, Alexandra Touroutoglou, Stephen N. Gomperts   +8 more
wiley   +1 more source