Results 31 to 40 of about 608 (186)

Research on Voltage Stability of Grid-Connected Photovoltaic System Based on Double-Side Voltage Feedback Control

Zhongguo dianli, 2022
In terms of the problem that the grid-connected photovoltaic DC system is unstable during low voltage ride through (LVRT), an improved double-side voltage control strategy is proposed.
Fei XUE, Xutao LI, Hongqiang LI, Bei TIAN   +3 more
doaj   +1 more source

A Coordinated LVRT Control for a PMSG Wind Turbine

IFAC-PapersOnLine, 2017
This paper proposes a coordinated controller for a permanent-magnet synchronous generator wind turbine to enhance its low voltage ride through capability. In the proposed method, both rotor side and grid side converters are cooperatively controlled to regulate the DC link voltage during the grid fault.
Kim, Chunghun, Gui, Yonghao; id_orcid 0000-0002-5043-5534, Chung, Chung Choo   +2 more
openaire   +2 more sources

Performance Improvement of Single-Phase Transformerless Grid-Connected PV Inverters Regarding Common-Mode Voltage (CMV) and LVRT [PDF]

Journal of Operation and Automation in Power Engineering, 2019
The single-phase transformerless grid-connected photovoltaic (PV) systems, mainly the low-power single-phase systems, require high efficiency, small size, lightweight, and low-cost grid-connected inverters.
M. Farhadi-Kangarlu, F. Mohammadi
doaj   +1 more source

Review of Low Voltage Ride-Through Capabilities in Wind Energy Conversion System

Energies
The significance of low voltage ride-through (LVRT) capability in wind energy conversion systems (WECSs) is paramount for ensuring grid stability and reliability during voltage dips.
Welcome Khulekani Ntuli, Musasa Kabeya, Katleho Moloi   +2 more
doaj   +1 more source

Changes in Echocardiographic Parameters of Cardiac Function Following Parathyroidectomy: A Meta‐Analysis

Echocardiography, Volume 43, Issue 6, June 2026.
Patients with symptomatic primary hyperparathyroidism (PHPT) have increased cardiovascular risk related to biochemical abnormalities and structural cardiac changes. We performed a meta‑analysis of 24 studies (881 patients) to evaluate echocardiographic changes following parathyroidectomy. Global longitudinal strain significantly improved after surgery,
Arsalan Anees, Femi E. Ayeni, Senarath Edirimanne   +2 more
wiley   +1 more source

Mechanism and Control Analysis of Synchronous Frequency Resonance in Distributed Power Generation System Connected to Grid

Energy Science &Engineering, Volume 14, Issue 4, Page 2263-2276, April 2026.
Small‐signal modeling reveals that insufficient system damping positions conjugate poles near the imaginary axis, fundamentally explaining the SFR mechanism. A virtual resistance control is consequently proposed to damp the resonance and effectively suppress SFR, which is validated through Hardware‐in‐the‐Loop experiments.
Yujie Gu, Jianbo Yi, Haoran Rui, Qi Huang   +3 more
wiley   +1 more source

ENHANCING LOW VOLTAGE RIDE THROUGH CAPABILITY IN UTILITY GRID CONNECTED SINGLE PHASE SOLAR PHOTOVOLTAIC SYSTEM [PDF]

Journal of Engineering Science and Technology, 2018
The steady rise in utility grid penetration of single phase solar photovoltaic system has contributed to the mandatory requirement of Low Voltage Ridethrough (LVRT) capability. LVRT capability provides stable grid integration during transient conditions.
RINI ANN JERIN A., MANU THOMAS, PALANISAMY K., UMASHANKAR S.   +3 more
doaj  

Comparison of Fuzzy Logic and PID Control in H‐Bridge Inverter: Performance Analysis and Response Optimization

Engineering Reports, Volume 8, Issue 2, February 2026.
Under identical conditions, we benchmark PID against Fuzzy‐Logic control for a single‐phase H‐bridge inverter. FLC achieves faster rise/settling with lower THD and better disturbance rejection than tuned PID while requiring explicit rule design—offering a reproducible baseline and deployment guidance for power‐quality‐constrained inverter applications.
Baraa Taha, Ayad Q. Al‐Dujaili, Eduardo Campos Mercado, Wulfran Fendzi Mbasso, Ali Elrashidi   +4 more
wiley   +1 more source

Two‐Step Clustering‐Based Equivalent Modeling of Large‐Scale Wind Farms for Enhanced Primary Frequency Regulation

Wind Energy, Volume 29, Issue 2, February 2026.
ABSTRACT The focus on wind power frequency regulation has largely been on individual wind farms, which presents challenges in meeting the coordinated operation needs of multiple stations within large‐scale installations. To address issues of model simplification and accuracy, we propose a large‐scale wind farm equivalent modeling method based on ...
Hongchun Shu, Liuqing Zhu, Botao Shi, Guangxue Wang, Shunguang Lei   +4 more
wiley   +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