Results 51 to 60 of about 3,218 (218)
Multiterminal High‐Voltage Direct Current Projects: A Comprehensive Assessment and Future Prospects
ABSTRACT Multiterminal high‐voltage direct current (MT‐HVDC) systems are an important part of modern power systems, addressing the need for bulk power delivery and efficient renewable energy integration. This paper provides a comprehensive overview of recent advances in MT‐HVDC technology, including launched projects and ongoing initiatives.
Mohammad Hossein Mousavi +3 more
wiley +1 more source
Aiming at the problem that silicon-controlled rectifiers (SCR) and pulse width modulation (PWM) rectifiers cannot balance high power levels, high hydrogen production efficiency, and high grid connected quality in the current research on rectifier power ...
Cheng Huang, Yang Tan, Xin Meng
doaj +1 more source
In the medium-voltage AC/DC distribution networks with distributed renewable sources on islands, a multi-port receiver is the key factor for hybrid power conversion.
Chuang Liu +4 more
doaj +1 more source
Hydrogels for Cancer Immunotherapy: Strategies From Construction to Application
Hydrogels offer an innovative platform for cancer immunotherapy. Through tailorable crosslinking strategies, they form customizable drug delivery platforms that address diverse therapeutic requirements by loading specific immunotherapeutic agents. These systems demonstrate significant clinical potential for precise tumor immunotherapy.
Xiaohua Chen +8 more
wiley +1 more source
Operation of three-phase modular multilevel converter (MMC) with reduced number of arms
Conventional three-phase MMC consists of six-arms, each arm is controlled to generate unipolar voltage ranging from zero to Vdc where Vdc is the input DC voltage. Each arm voltage has two components (DC and AC components). In this work, the operation of MMC with reduced number of arms (four arms only), correspondingly reduced cost is presented.
Ahmed A. Elserougi +2 more
openaire +2 more sources
Reverse-blocking modular multilevel converter for battery energy storage systems
Energy storage systems with multilevel converters play an important role in modern electric power systems with large-scale renewable energy integration.
Xiaofeng YANG +6 more
doaj +1 more source
A Hybrid Ultra‐High Voltage DC Transformer With Digital Twin‐Driven Operation and Control
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 +6 more
wiley +1 more source
Variable speed pumped storage units have obvious advantages in efficiency and adaptability under various operation conditions compared with traditional fixed-speed pumped storage units.
Bo ZHAO +5 more
doaj +1 more source
Reducing the power loss and handling short-circuit faults in HVDC systems are crucial for economical and reliable operation of modular multilevel converters (MMC). This paper proposes a loss reduction method for AC voltage-boosted FBSM-MMC by controlling
Muchao Xiang, Jiabing Hu, Zhiyuan He
doaj +1 more source
Direct current (DC)–DC converters are the backbone of electric vehicle (EV) power trains, enabling efficient and bidirectional energy flow between the battery, high‐voltage (HV) DC link, and auxiliary rails under tight isolation, gain, ripple, and electromagnetic interference (EMI) constraints.
Abhilash Sakhare +3 more
wiley +1 more source

