Results 61 to 70 of about 673,416 (205)

Steady‐state power operation region of a modular multilevel converter connecting to an AC grid

open access: yesHigh Voltage, 2021
The modular multilevel converter (MMC) has become a widely used topology for voltage source converter–based high‐voltage direct current transmission projects.
Jiecong Wang   +4 more
doaj   +1 more source

Recent Advances in Hybrid, Plug‐In, Battery, and Fuel Cell EVs: Control Schemes, Modes, Converter Topologies, and Pros and Cons

open access: yesIET Electrical Systems in Transportation, Volume 2026, Issue 1, 2026.
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

Inter‐Phase Power Balance Control Strategy of MMC‐MG Based on Arm Virtual Voltage

open access: yesIET Energy Systems Integration, Volume 8, Issue 1, January/December 2026.
ABSTRACT In view of three‐phase power unbalanced caused by the output power difference of each phases microsource of the modular multilevel converter half‐bridge series microgrid (MMC‐MG) operating in the islanded mode, a balance control method of inter‐phase power is proposed.
Nier Wang, Sheng Xue, Jinjian Li
wiley   +1 more source

Multi‐Layer MTDC Protection: Design and Simulation Assessment

open access: yesIET 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

Stability and Synchronization of MMC‐HVDC Systems Using SRF and Inertia‐Based PLLs

open access: yesIET 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

Synthesis of different types of energy based controller for a Modular Multilevel Converter integrated in a HVDC link [PDF]

open access: yes, 2015
Modular Multilevel Converters are becoming increasingly popular with the development of HVDC connection and, in the future, Multi Terminal DC grid. A lot of publications have been published about this topology these last years since it was first proposed.
SAMIMI, Shabab   +10 more
core   +1 more source

Mixed cells modular multilevel converter [PDF]

open access: yes, 2014
This paper uses a scaled down version of the mixed cells modular multilevel converter (MMC) to discuss its modulation and capacitor voltage balancing method, and investigates its AC and DC fault ride-through capability.
Ahmed, K.H., Williams, B.W., Adam, G. P.
core   +4 more sources

Research on Fault Ride‐Through Characteristics of Inverter‐Side Hybrid HVDC in Offshore Wind Farms

open access: yesIET 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

A Novel MMC‐HVDC Transmission Line Protection Method Based on Energy Criterion and GADF‐MA‐CNN

open access: yesIET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
1. Identifies faulty sections using the energy criterion. 2. Uses GADF to acquire fault voltage characteristics. Utilises the MA‐CNN model for rapid fault type identification. 3. It has high accuracy, strong anti‐noise ability and can withstand 500? fault resistance.
Xiangyang Liu   +3 more
wiley   +1 more source

Health-Aware Energy Management of Energy Storage Systems in Modular Power Converters

open access: yesIEEE Open Journal of Vehicular Technology
Supercapacitors, characterized by high power density and relatively long cycle life, are mainly used for high-power and transient applications. However, their lifespan can be significantly affected by loading and temperature factors.
Alaa Hijazi   +2 more
doaj   +1 more source

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