Results 41 to 50 of about 4,033 (193)

Research of the power plant operational states with block structure [PDF]

, 2005
In this article the research technique block structure power plant operational states is offered. As an example the operating power plant of OOO Siberian Generation Company with block structure of turbogenerators connection is considered.
Eggermann, Katja, Eggermann, Thomas, Gläser, D., Haverkamp, F., Horsthemke, B., Meschede, D., Palm, S., Schüler, Herdit Monika, Zerres, Klaus   +8 more
core   +1 more source

The New Geomagnetic Monitoring Network in China: Insights From the 2024 Mother's Day Superstorm

Space Weather, Volume 24, Issue 2, February 2026.
Abstract China has established a ground‐based network system, that is the Chinese Meridian Project (CMP), to continuously monitor the geomagnetic field. The superstorm in May 2024 was analyzed using the CMP data. The negative peak of the horizontal geomagnetic field (Bh) during the storm main phase at different CMP stations varied between −449 nT and ...
Jing Wang, Yue Yan, Bingxian Luo, Chunming Liu, Hui Li, Jiaojiao Zhang, Yanhong Chen, Chen Wu, Zihan Wu, Ziqian Liu, Xin Wang, Ercha Aa, Xianzhi Ao   +12 more
wiley   +1 more source

Evaluating the Energy Conservation Effects of Implementing Automatic Voltage Regulator: A Case Study of Department Stores

Energies
Commercial buildings and shopping malls face rising electricity costs and increasing pressure to adopt sustainable practices. This paper presents the first long-term, multi-site empirical validation of Automatic Voltage Regulator (AVR) deployment in Thai
Montree Utakrue, Nuttapon Chaiduangsri, Narongkorn Uthathip, Nattawoot Suwannata   +3 more
doaj   +1 more source

A Hybrid Ultra‐High Voltage DC Transformer With Digital Twin‐Driven Operation and Control

Digital Twins and Applications, Volume 3, Issue 1, January/December 2026.
This study introduces a digital twin‐driven hybrid ultra‐high‐voltage DC transformer (UHVDCT) that combines high‐capacity LCCs with low‐capacity MMCs at the UHV side. This innovative topology reduces MMC requirements by 32.9% while ensuring stable power flow and dynamic reactive balance through real‐time virtual‐physical synchronization.
Ling Xu, Le Zhao, Xiaohu Zhang, Hanlin Guo, Jie Fang, Zheren Zhang, Zheng Xu   +6 more
wiley   +1 more source

Calculation of Transformer and Autotransformer Resources in Automatic Control Systems of Technological Processes at Substations

Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2009
The paper proposes algorithms for calculation of transformer and autotransformer resources and control of thermal condition of windings using hardware and software of automatic control systems of technological processes at substations.The given software ...
V. V. Bourliuk, S. N. Zherko
doaj   +1 more source

Performance Improvement of PMSG‐Based Wind Energy Systems via Sensorless FS‐Predictive Current Control With MRAS and MPPT‐OTC Integration

IET Electric Power Applications, Volume 20, Issue 1, January/December 2026.
This paper proposes a hybrid sensorless control strategy for a permanent magnet synchronous generator (PMSG)‐based wind energy conversion system (WECS). The approach integrates finite‐set predictive current control (FS‐PCC), a model reference adaptive system (MRAS) estimator and an optimal torque control maximum power point tracking (MPPT‐OTC) method ...
Hicham Sayhi, Amor Bourek, Abdelkarim Ammar, Ali Teta, Ahmed Chennana, Abdelaziz Rabehi, Mohamed Benghanem, Takele Ferede Agajie   +7 more
wiley   +1 more source

A Three-phase Power-factor Correction Scheme Using an Autotransformer and Two Single-phase Buck Rectifiers

Eletrônica de Potência, 2015
This paper presents a three-phase unidirectional rectifier with power-factor correction (PFC) using two modified single-phase Buck rectifiers in continuous conduction mode (CCM).
Geovane Duarte Pinheiro, Alceu André Badin, Roger Gules, Eduardo Ribeiro Felix Romaneli   +3 more
doaj   +1 more source

Implementation Strategy of Test Facility Based on Auto-Transformer for LVRT/HVRT Evaluation of Large-Scale Wind Turbine

Energies, 2023
In accordance with South Korea’s recent 2030 Carbon Neutral Plan, an 8GW offshore wind farm is planned for construction in the South-west Sea. Therefore, it is expected that large-scale wind turbines will be installed, and these turbines must operate ...
Byungki Kim, Yang-Hyun Nam, Kyung-Sang Ryu, Dae-Jin Kim   +3 more
doaj   +1 more source

Voltage Control Strategies in Distribution Systems With High Distributed Generation Penetration: Models, Methods and Future Research

IET Energy Systems Integration, Volume 8, Issue 1, January/December 2026.
ABSTRACT This paper presents a comprehensive review of recent global research on voltage control in distribution systems with high penetration of distributed generation. First, it examines voltage regulation challenges in distribution systems that integrate distributed generation.
Htutzaw Hein, Jiebei Zhu, Lujie Yu, Zequn Liu, Xiaolong Liu, Siyang Xu, Yi Hao   +6 more
wiley   +1 more source

A Unidirectional DC-DC Autotransformer for DC Grid Application

Energies, 2018
Conventional unidirectional DC-DC converters for DC grid application employ DC-AC-DC two-stage conversion technology and suffer from high converter cost and power loss.
Meng Zhou, Wang Xiang, Wenping Zuo, Weixing Lin, Jinyu Wen   +4 more
doaj   +1 more source