Results 61 to 70 of about 17,156 (263)
EnergiesAiming 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
Modular multilevel converter based LCL DC/DC converter for high power DC transmission grids [PDF]
, 2015 This paper presents a modular multilevel converter (MMC) based DC/DC converter with LCL inner circuit for HVDC transmission and DC grids. Three main design challenges are addressed.
Aboushady, Ahmed +2 more
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Multi‐Layer MTDC Protection: Design and Simulation Assessment
IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.This study proposes a novel multi‐layer protection architecture for multi‐terminal DC systems that separates fault current‐limiting and interruption functions. By combining a thyristor‐based fault current limiter with an active resonance circuit breaker, the scheme significantly reduces peak fault currents and di/dt stress, enabling a more compact ...
Jong‐Geon Lee +3 more
wiley +1 more source
MOSFET parallel-connection of low-voltage MMC for LVDC distribution networks [PDF]
, 2016 A highly efficient DC-AC converter is key to the success of low-voltage DC (LVDC) distribution networks. Calculated power losses in a conventional IGBT 2-level converter, a SiC MOSFET 2-level converter, a Si MOSFET modular multilevel converter (MMC) and ...
Finney, Stephen +3 more
core
Stability and Synchronization of MMC‐HVDC Systems Using SRF and Inertia‐Based PLLs
IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.This study investigates the influence of synchronous reference frame PLL (SRF‐PLL) and the inertia PLL (IPLL) on the stability of grid‐connected modular multilevel converter high voltage direct current (MMC‐HVDC) systems. The findings highlight intrinsic stability limitations of PLL‐based systems, offering insights toward more stable, PLL‐less ...
Shuai Wang, Robin Preece, Mike Barnes
wiley +1 more source
Reverse-blocking modular multilevel converter for battery energy storage systems
Journal of Modern Power Systems and Clean Energy, 2017 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
IEEE Access, 2020 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
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Hybrid cascaded modular multilevel converter with DC fault ride-through capability for HVDC transmission system [PDF]
, 2015 A new hybrid cascaded modular multilevel converter for high-voltage dc (HVDC) transmission system is presented. The half-bridge (HB) cells are used on the main power stage and the cascade full-bridge (FB) cells are connected to its ac terminals. The main
Adam, Grain Philip +4 more
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Research on Fault Ride‐Through Characteristics of Inverter‐Side Hybrid HVDC in Offshore Wind Farms
IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.This paper addresses issues in wind power DC transmission systems, such as difficulty in maintaining power delivery during rectifier‐side faults and frequent overvoltage occurrences during inverter‐side faults. A hybrid topology comprising a rectifier‐side MMC and an inverter‐side LCC‐MMC configuration is proposed, along with corresponding enhanced ...
Guoqing Yang, Jiaying He, Jiaying Xu
wiley +1 more source
电力工程技术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
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