Results 31 to 40 of about 1,454 (183)

Application and development of power electronic devices in VSC-HVDC transmission system

open access: yes机车电传动, 2023
Voltage sourced converter based high voltage direct current (VSC-HVDC) is the core technology of new type of power systems with new energy as its main part.
YANG Liu   +5 more
doaj  

Classification and spatial mapping of atmospheric corrosion of China

open access: yesnpj Materials Degradation, 2022
Atmospheric corrosion is ubiquitous in China but varies a lot among different regions covering the cold, temperate, and tropical zones. Categorizing the atmospheric corrosivity and plotting precise atmospheric corrosion map remain key interest for a ...
Wenkui Hao   +10 more
doaj   +1 more source

PMU‐Based Wide Area Monitoring With Machine Learning to Prevent Blackouts in Bangladesh Power System

open access: yesEnergy Science &Engineering, EarlyView.
A Unified Real‐time Dynamic State Measurements (URTDSM) system with PMU and Phasor Data Concentrator (PDC) deployment plan has been proposed to avoid blackout in the Bangladeshi power system. Machine learning has been used to process data from PMU to identify abnormal events. ABSTRACT The electrical power system must be trustworthy and secure enough to
Imi Bintey Fariha Rahman   +5 more
wiley   +1 more source

Recent developments in HVDC transmission systems to support renewable energy integration

open access: yesGlobal Energy Interconnection, 2018
The demands for massive renewable energy integration, passive network power supply, and global energy interconnection have all gradually increased, posing new challenges for high voltage direct current (HVDC) power transmission systems, including more ...
Zhou Li   +6 more
doaj   +1 more source

Model parameter identification for scaled-down analogous HVDC transmission lines using broad spectral response analysis

open access: yesEnergy Reports, 2022
Traditional analogous π-shape transmission line models are mainly designed based on the amplitude and phase response characteristics of the distributed-parameter transmission lines at the power frequency.
Jinrui Tang   +4 more
doaj   +1 more source

HVDC power transmission environmental issues review [PDF]

open access: yes, 1997
This report strives to define the various environmental effects associated with HVDC lines, discusses the current knowledge of their potential effects on biological and non-biological systems, and compares these effects associated with ac lines where appropriate.
Bailey, W.H., Weil, D.E., Stewart, J.R.
openaire   +2 more sources

Variance‐Empirical Mode Decomposition Method for Fault Detection in MMC‐HVDC Transmission Lines

open access: yesEnergy Science &Engineering, EarlyView.
A variance‐embedded empirical mode decomposition (VEMD) method is proposed for fast and accurate fault detection in MMC‐HVDC transmission lines. By combining variance analysis with EMD, the method reliably detects various faults without communication links and remains robust to noise and non‐fault transients.
Seyed Amir Hosseini, Behrooz Taheri
wiley   +1 more source

Overview of Research on Stability and Control of VSC-HVDC

open access: yes发电技术, 2019
Voltage source converter based high voltage direct current (VSC-HVDC) transmission systems has the advantages of good active and reactive power control capability and more suitable for multi-terminal transmission system.
Mingzhe WU, Wuhui CHEN
doaj   +1 more source

Design of a Multi‐Complex Disturbance Generator Using Virtual Instrumentation for Power Quality Monitoring Research

open access: yesEnergy Science &Engineering, EarlyView.
A real‐time power quality disturbance generator is developed using virtual instrumentation based on LabVIEW and NI MyDAQ. The system generates IEEE‐standard PQ events with controllable noise and harmonics. Measurement uncertainty analysis confirms its reliability for realistic testing of Power Quality Disturbance detection and classification algorithms.
Abdullah Saud   +5 more
wiley   +1 more source

Transient stability enhancement control through VSC-HVDC system and fast frequency response resources

open access: yesFrontiers in Energy Research, 2023
In addition to the traditional long-distance and bulk power transmission application, the HVDC system can bring additional benefits to the system by providing ancillary service.
Qingshen Xu   +3 more
doaj   +1 more source

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