Results 51 to 60 of about 344 (172)

Research on emergency DC power support coordinated control for hybrid multi-infeed HVDC system

Archives of Electrical Engineering, 2020
Based on the respective characteristics of line-commutated converter high-voltage direct current (LCC-HVDC) and voltage-source converter high voltage direct cur- rent (VSC-HVDC), two additional emergency DC power support (EDCPS) controllers are designed,
Congshan Li , Yikai Li, Jian Guo, Ping He   +3 more
doaj   +1 more source

Comparative Thermal Performance Analysis of Induction and Interior Permanent Magnet Machines for Electric Vehicles Under Varying Drive Cycles Using ANSYS Motor‐CAD Software: Approach Toward Sustainability

Engineering Reports, Volume 8, Issue 2, February 2026.
Thermal analysis of machines. ABSTRACT A comparative thermal performance study is carried out on an induction machine (IM) and an interior permanent magnet synchronous machine (i‐PMSM) for electric vehicle applications under the standardized Highway Fuel Economy Test (HWFET) and Worldwide Harmonized Light Vehicles Test Procedure (WLTP) Class 3 drive ...
R. Prasanna, S. Raja, Maher Ali Rusho, Shubham Sharma, T. Ramachandran, Krishna Prakash Arunachalam, Ghanshyam G. Tejani, Huda Fish   +7 more
wiley   +1 more source

Control strategy of novel hybrid commutated converter based on reverse blocking integrated gate commutated thyristor for commutation failure mitigation

High Voltage
Commutation failure (CF) is an inherent problem faced by line commutated converter high voltage direct current (LCC‐HVDC) technology. To completely solve the problem of CF, we have proposed a novel hybrid commutated converter (HCC) technology based on ...
Zongze Wang, Zhanqing Yu, Lu Qu, Zhichang Yuan, Kangsheng Cui, Jian Shi, Biao Zhao, Rong Zeng   +7 more
doaj   +1 more source

An Earth System Model Ensemble Forced With Probabilistic Emissions: Demonstration and Prospects for Climate Risk Assessment

Earth's Future, Volume 14, Issue 2, February 2026.
Abstract Future projections of climate change are uncertain, in part because of uncertainty in future greenhouse gas emissions. However, current widely used emission scenarios and related physical climate projections have no probabilities associated with them, presenting a challenge for risk‐informed climate adaptation decision making.
Jeremy Fyke, Neil C. Swart, David Huard
wiley   +1 more source

New Monolithic Modular DC-DC Converter for Constant Current Offshore Interconnection With VSC HVdc Network

IEEE Access
The rapid growth in HVDC (High Voltage Direct Current) grids has shown the falls of point-to-point connections. Several challenges such as the requirement of DC (Direct Current) fault blocking capability, interfacing of different grounding schemes ...
Mohamed Mansour, Mohamed G. Abdel-Moneim, Ayman S. Abdel-Khalik, Shehab Ahmed, Khaled H. Ahmed   +4 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

A Five‐Level Active Neutral‐Point‐Clamped Auxiliary Inverter Based on Reverse Blocking IGBT in Metro Applications

IET Electric Power Applications, Volume 20, Issue 1, January/December 2026.
We propose a novel five‐level active‐neutral‐point‐clamped converter utilising reverse blocking IGBT (RB‐IGBT). The inverter configuration significantly reduces conduction losses, as only two switches are on the current paths in some switching states. We also propose an optimised state machine‐based modulation strategy.
Mingxia Xu, Bowen Yu, Yingying Xu, Rui Li, Jiatao Yang   +4 more
wiley   +1 more source

Backward travelling wave-variation-based protection for the transmission line of a hybrid HVDC system

The Journal of Engineering, 2019
The hybrid high-voltage direct current (HVDC) transmission system comprising a line-commutated converter (LCC) on the rectifier side and a voltage source converter (VSC) on the inverter side combines the advantages of both LCC and VSC.
Yanting Wang, Baohui Zhang, Baohui Zhang
doaj   +1 more source

Dynamic Stability Analysis of Multi‐Infeed Wind Power System With Composite Dynamic Short Circuit Ratio

IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
A GEDMM is proposed to represent the MIWPS as multiple VSISs and model each of them as the VTDS2M whose unknown parameters are identified with the proposed hybrid optimized square root cubature Kalman filter (HOSRCKF). To solve the issues that the physical meanings of existing short circuit ratios (SCRs) are unclear and the critical values of existing ...
Mengxian Sun, Dongdong Li, Weilun Zhong, Dajun Yu   +3 more
wiley   +1 more source

Applicability analysis of travelling wave protection for the hybrid HVDC system

The Journal of Engineering, 2019
The hybrid high-voltage direct current (HVDC) system, in which the rectifier is made up of the line commutated converter (LCC) and the inverter is composed of the modular multilevel converter (MMC), has quite different fault characteristics from the ...
Shaojie Cheng, Yanting Wang, Baohui Zhang, Hongyue Ma   +3 more
doaj   +1 more source