Results 51 to 60 of about 2,361 (200)
Deadbeat-based control for MMC-HVDC power systems
With the domination of modular multilevel converters (MMCs) interfaced power grids, especially for transmission of the wind generated energy, the control of such power electronic interfaced grids is of an utmost important for the proper operation and grid stability.
Majstorović, Milovan +3 more
openaire +2 more sources
In this work, we investigate a lightweight HVDC converter topology that combines the strengths of line‐commutated converters (LCC) and full‐bridge modular multilevel converters (MMC) to address the high cost and large footprint of conventional HVDC stations.
Yang Wang +7 more
wiley +1 more source
Modelling and simulation analysis of MMC‐HVDC system based on transient energy flow
In the high voltage direct current (HVDC) transmission system composed of modular multilevel converters (MMC), considering the distribution of transient energy flow (TEF) contributes to the transient modelling and fault characteristic analysis when dc ...
Jun Yan +4 more
doaj +1 more source
A novel multi-modular series HVDC tap [PDF]
Tapping energy from a HVDC transmission line to serve small remote communities has been considered by researchers and HVDC manufacturers since the 1960s.
Farr, Ewan +4 more
core +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
Due to system failures and the limited overcurrent capability of semiconductor devices, overcurrent in modular multilevel converters (MMC) is a key factor affecting the safe and stable operation of offshore wind power MMC-HVDC (modular multilevel ...
Jun Zhang +3 more
doaj +1 more source
Modular multilevel converter (MMC)-based high-voltage DC (HVDC) transmission technology has become an ideal solution for large and remote wind farms integration.
Xiao Wang +5 more
doaj +1 more source
ABSTRACT When multiple grid‐forming and grid‐following converters operate within an offshore energy system (OES), dynamic interactions among them can lead to poorly damped oscillations and potential instability. This paper proposes a computationally efficient reduced‐order state‐space modelling framework for small‐signal stability and parametric ...
Nakul Narayanan K +3 more
wiley +1 more source
Modular Multilevel Converter Based High Voltage Direct Current (MMC-HVDC) system is an important technical means to realize grid connection and transmission of new energy.
Huanruo Qi +5 more
doaj +1 more source
Enhanced AC voltage and frequency control of offshore MMC station for wind farm connection [PDF]
Connecting large offshore wind farms using HVDC transmission systems based on modular multilevel converter (MMC), the offshore AC voltage and frequency are regulated by the offshore MMC station and are important for the stable wind power generation and ...
Jing, Yiran, Li, Rui, Wang, Yi, Xu, Lie
core

