Results 31 to 40 of about 3,260 (186)
Heat Transfer Process of HVDC Submarine Cables under Transient Load
Zhongguo dianli, 2020 High-voltage direct current (HVDC) XLPE submarine cable is an important carrier for long-distance and large-capacity power transmission. The HVDC submarine cable load affects temperature distribution, while the temperature has an important influence on ...
Zhengbo LIANG +5 more
doaj +1 more source
Variance‐Empirical Mode Decomposition Method for Fault Detection in MMC‐HVDC Transmission Lines
Energy 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
Inertia Compensation Strategy of AC/DC System Tie Line Based on Energy Storage Differential Control
Taiyuan Ligong Daxue xuebao, 2021 A strategy of compensating DC tie line inertia by differential control of energy storage was proposed in this paper. First, through the analysis of AC/DC transmission model and the inertia characteristics of DC tie line, a two zone AC/DC hybrid AGC ...
Xilin ZHAO, Daheng ZHANG, Hang MING
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Development of Cooling Performance Evaluation System for Semiconductor Device in High Voltage Direct Current Converter [PDF]
한국정밀공학회지, 2020 The high voltage direct current (HVDC) device has been used to transmit electrical power with an advanced technology of semiconductors. The sustainable energy generation technologies of solar power and windmills are demanding that the HVDCs have high ...
Jaemun Choi, Jaehyun Park, Heesung Park
doaj +1 more source
Energy 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
Energy InformaticsThe task scheduling problem based on directed acyclic graphs (DAGs) has been proven to be NP-complete in general cases or under certain restrictions.
Qi Guo +7 more
doaj +1 more source
Market Integration of HVDC Lines: Internalizing HVDC Losses in Market Clearing [PDF]
IEEE Transactions on Power Systems, 2020 Moving towards regional Supergrids, an increasing number of interconnections are formed by High Voltage Direct Current (HVDC) lines. Currently, in most regions, HVDC losses are not considered in market operations, resulting in additional costs for Transmission System Operators (TSOs).
Andrea Tosatto +2 more
openaire +2 more sources
Micro Partial Discharge Characteristics of SF6 Under DC Voltage
High Voltage, EarlyView.ABSTRACT In gas‐insulated high‐voltage direct current (HVDC) devices, micro partial discharges (PD) caused by micro‐protrusions or surface roughness on conductors or enclosures may not cause immediate insulation system failure due to their weak discharge intensity.
Geng Chen +4 more
wiley +1 more source
IEEE AccessThe Hybrid Modular Multilevel Converter (HMMC) topology—comprising full-bridge (FB) and half-bridge (HB) submodules—is effective for DC fault clearance in HVDC systems.
Muhammad Usman, Il Kwon, Bang-Wook Lee
doaj +1 more source
IoT Supervised PV-HVDC Combined Wide Area Power Network Security Scheme Using Wavelet-Neuro Analysis
Advances in Electrical and Electronic Engineering, 2022 Power system networks are one of the most widely used methods in the real world for transferring large amounts of electrical energy from one location to another.
Gantaiah Swamy Garika, Padma Kottala
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