Results 11 to 20 of about 6,208 (199)

Bad Data Detection and Identification of Hybrid AC/DC Power Systems with Voltage Source Converters Using Deep Belief Network and K-Means Clustering

Elektronika ir Elektrotechnika, 2019
The widespread use of Voltage Source Converter based High Voltage Direct Current Transmission (VSC-HVDC) technology has significantly increased the complexity of grid configuration and operation, which demands higher quality of AC/DC state estimation ...
Tong Zhang, Hucheng Li, Yu Huang, Mingyu Zhai, Fei Zeng   +4 more
doaj   +1 more source

Frequency stabilisation using VSC-HVDC [PDF]

2016 IEEE Power and Energy Society General Meeting (PESGM), 2016
Frequency control of AC systems using VoltageSource Converter (VSC) HVDC links is of growing importanceas interconnectors and links to offshore generation replaceconventional synchronous generators in many countries. This paper investigates the use of local system feedback andadvanced droop control to achieve frequency stabilization for atwo-area test ...
Shen, L, Barnes, Mike, Preece, Robin; id_orcid 0000-0003-1224-0397, Milanovic, Jovica   +3 more
openaire   +3 more sources

Sosyodemografik yapı ve sigara kullanımının ağız kokusu üzerine etkisinin organoleptik yöntem ve halimeter® ile değerlendirilmesi

Cumhuriyet Dental Journal, 2014
Amaç: Bu çalışmanın amacı, Yakın Doğu Üniversitesi, Diş Hekimliği Fakültesine başvuran bireylerde halitozis görülme sıklığının araştırılması ve halitozis ile yaş, cinsiyet, eğitim seviyesi ve sigara kullanımı arasındaki ilişkinin incelenmesidir ...
Başak Kuşakcı Şeker, Hayriye Tumer
doaj   +1 more source

Optimal Control of VSC for STATCOM Applications [PDF]

IFAC Proceedings Volumes, 2012
Abstract In this work, a voltage source converter (VSC) is configured to perform STATCOM tasks and generate reactive power. An optimal H ∞ controller has been successfully implemented including an anti-windup compensator. Data from an experimental test bench is provided and compared with simulation results showing good accuracy level.
Bianchi, Fernando Daniel, Trilla, Lluis, Gomis Bellmunt, Oriol   +2 more
openaire   +2 more sources

Análise Comparativa Entre O Controle Direto E Indireto De Injeção De Corrente Em Um D-statcom

Eletrônica de Potência, 2006
O D-STATCOM (Distribution Static Synchronous Compensator) é em sua essência uma fonte de tensão ac onde a magnitude, o ângulo de fase e a freqüência da tensão de saída podem ser controlados.
Antonio Carlos Borre, Amaury Simões Xavier, Flávio Gonçalves da Cruz Ribeiro, Mauricio Aredes   +3 more
doaj   +1 more source

A Comprehensive Power Flow Approach for Multi-terminal VSC-HVDC System Considering Cross-regional Primary Frequency Responses

Journal of Modern Power Systems and Clean Energy, 2020
For the planning, operation and control of multiterminal voltage source converter (VSC) based high-voltage direct current (HVDC) (VSC-MTDC) systems, an accurate power flow formulation is a key starting point.
Yida Ye, Ying Qiao, Le Xie, Zongxiang Lu
doaj   +1 more source

Transient stability enhancement control strategy for droop-controlled voltage source converter

Energy Reports, 2022
The droop-controlled voltage source converter (VSC) can support the voltage at the point of common coupling (PCC) and realize frequency adjustment by simulating the swing equation of the synchronous generator (SG) and has a higher stability margin in the
Jilei Wang, Xing Zhang, Qiaohua Zhu, Siyu Chen, Bo Peng   +4 more
doaj   +1 more source

Available and novel plant-based carbon dots derived from Vaccaria Semen carbonisata alleviates liver fibrosis

Frontiers in Molecular Biosciences, 2023
Background: Liver fibrosis represents an intermediate stage in the progression of liver disease, and as of now, there exists no established clinical therapy for effective antifibrotic treatment.Purpose: Our aim is to explore the impact of Carbon dots ...
Yafang Zhao, Ertong Dai, Liyang Dong, Jinye Yuan, Yusheng Zhao, Tong Wu, Ruolan Kong, Menghan Li, Shuxian Wang, Long Zhou, Yingxin Yang, Hui Kong, Yan Zhao, Huihua Qu   +13 more
doaj   +1 more source

Coupling Influence on the dq Impedance Stability Analysis for the Three-Phase Grid-Connected Inverter

Energies, 2019
The dq impedance stability analysis for a grid-connected current-control inverter is based on the impedance ratio matrix. However, the coupled matrix brings difficulties in deriving its eigenvalues for the analysis based on the general Nyquist criterion.
Chuanyue Li, Taoufik Qoria, Frederic Colas, Jun Liang, Wenlong Ming, Francois Gruson, Xavier Guillaud   +6 more
doaj   +1 more source

Mechanism analysis and mitigation strategies for oscillatory instability of synchronous generators affected by voltage source converters

IET Generation, Transmission & Distribution, 2022
The electric power systems are experiencing a transformation to be characterized by power electronic devices, for example, voltage source converters (VSCs).
Yicheng Xue, Guoteng Wang, Zheren Zhang, Zheng Xu   +3 more
doaj   +1 more source