Results 281 to 290 of about 766,223 (354)
Some of the next articles are maybe not open access.
IEEE transactions on power electronics, 2022
High step-down, high output current converters are required in many common and emerging applications, including data center server power supplies, point-of-load converters, and electric vehicle charging. Miniaturization is desirable but challenging owing
Mike K. Ranjram, D. Perreault
semanticscholar +1 more source
High step-down, high output current converters are required in many common and emerging applications, including data center server power supplies, point-of-load converters, and electric vehicle charging. Miniaturization is desirable but challenging owing
Mike K. Ranjram, D. Perreault
semanticscholar +1 more source
Hybrid Transformer With Matrix Converter
IEEE Transactions on Power Delivery, 2016This paper deals with an ac–ac voltage regulator/compensator based on a hybrid transformer with a matrix converter realizing electrical coupling in the hybrid transformer unit. The parameters of electrical energy, such as voltage amplitude, are very important, particularly from the viewpoint of the final consumer and sensitive loads connected to the ...
Pawel Szczesniak, Jacek Kaniewski
openaire +1 more source
IEEE transactions on industrial electronics (1982. Print)
Converter transformer harmonic currents are both the main cause of winding looseness and effective information for detecting winding looseness fault. In this letter, an online vibration frequency response analysis (VFRA) method is proposed using high ...
Shuyu Wu +4 more
semanticscholar +1 more source
Converter transformer harmonic currents are both the main cause of winding looseness and effective information for detecting winding looseness fault. In this letter, an online vibration frequency response analysis (VFRA) method is proposed using high ...
Shuyu Wu +4 more
semanticscholar +1 more source
IEEE Transactions on Transportation Electrification, 2021
This article discusses electrical design optimization of a 3.3 kW, 380 V to 250–380 V, 500 kHz, dual-active-bridge dc–dc converter for onboard chargers, operated with constant-power (CP) charging.
Yongwan Park, S. Chakraborty, A. Khaligh
semanticscholar +1 more source
This article discusses electrical design optimization of a 3.3 kW, 380 V to 250–380 V, 500 kHz, dual-active-bridge dc–dc converter for onboard chargers, operated with constant-power (CP) charging.
Yongwan Park, S. Chakraborty, A. Khaligh
semanticscholar +1 more source
Hybrid Algorithm for Dynamic Fault Prediction of HVDC Converter Transformer Using DGA Data
IEEE transactions on dielectrics and electrical insulationVery limited studies have forecast the gas concentration and faults of high voltage direct current (HVDC) converter transformers. In this study, a hybrid algorithm consisting seasonal autoregressive integrated moving average-convolutional neural network ...
Manojkumar Patil +5 more
semanticscholar +1 more source
, 2020
Converter transformers are key facilities in HVDC systems. The operation condition of converter transformers is more complex than that of conventional AC transformers.
Weidong Sun +5 more
semanticscholar +1 more source
Converter transformers are key facilities in HVDC systems. The operation condition of converter transformers is more complex than that of conventional AC transformers.
Weidong Sun +5 more
semanticscholar +1 more source
Research status of insulation performance of high voltage converter transformer bushing
Workshop on Automated Control for Datacenters and Clouds, 2020The high voltage capacitor filled SF6 gas bushing is an important equipment to realize the electrical connection between the converter transformer and the valve tower. The paper mainly analyzes current status of the research on its insulation performance.
Z. Shiling
semanticscholar +1 more source
Transformer synthesis for VHF converters
The 2010 International Power Electronics Conference - ECCE ASIA -, 2010This document presents a method to synthesize an air-core transformer with a given inductance matrix. The proposed algorithm is used to design a two-winding transformer for a Φ 2 resonant dc-dc converter operating in the VHF (30–300 MHz) regime. The method realizes the required inductance matrix to achieve proper tuning while trading volume and ...
Anthony D. Sagneri +2 more
openaire +1 more source
Electro‐Thermal Coupling Field Simulation of Converter Transformer Valve Side Bushings
IEEJ TRANSACTIONS ON ELECTRICAL AND ELECTRONIC ENGINEERING, 2020In the actual operation, converter transformer valve side bushings are subjected to high voltages and large current loads with large number of harmonics simultaneously. In our previous papers, using the 3‐D electromagnetic‐fluid‐thermal coupling analysis
Qingyu Wang +4 more
semanticscholar +1 more source
Differential protection of converter transformers
2016 17th International Scientific Conference on Electric Power Engineering (EPE), 2016In this paper, development of the special converter transformer model (with 5 windings) and testing results of its differential protection is presented. The special converter transformer is mainly used for supply of rectifiers or converters, FACTS devices etc. This type of transformer can introduce non-standard fixed phase angle shifts such as 20o, 15o,
Krzysztof Solak +2 more
openaire +1 more source