An overview of modular multilevel converters in HVDC transmission systems with STATCOM operation during pole-to-pole DC short circuits

TH Nguyen, K Al Hosani, MS El Moursi… - IEEE Transactions on …, 2018‏ - ieeexplore.ieee.org
Fault-current handling capability of the modular multilevel converters (MMCs) under dc-
cable short-circuit conditions is a major concern for the MMC applications on the high …

A detailed review of MMC circuit topologies and modelling issues

JB Soomro, F Akhtar, R Hussain… - … on Electrical Energy …, 2022‏ - Wiley Online Library
MMC is a promising technology for MTDC systems and would transform into the concept of
Supergrids in the near future. The salient features of MMC are modularity, reduced dv/dt and …

DC fault detection and location in meshed multiterminal HVDC systems based on DC reactor voltage change rate

R Li, L Xu, L Yao - IEEE Transactions on Power Delivery, 2016‏ - ieeexplore.ieee.org
The change rate of the dc reactor voltage with predefined protection voltage thresholds is
proposed to provide fast and accurate dc fault detection in a meshed multiterminal HVDC …

Dynamic model, control and stability analysis of MMC in HVDC transmission systems

M Mehrasa, E Pouresmaeil, S Zabihi… - IEEE Transactions on …, 2016‏ - ieeexplore.ieee.org
A control technique is proposed in this paper for control of modular multilevel converters
(MMC) in high-voltage direct current (HVDC) transmission systems. Six independent …

Modelling of high‐power hybrid DC circuit breaker for grid‐level studies

W Lin, D Jovcic, S Nguefeu, H Saad - IET Power Electronics, 2016‏ - Wiley Online Library
The modelling principles for hybrid DC circuit breakers (CBs) which is developed to support
DC grid protection studies and transient studies involving DC protection are studied. The …

Modulated model predictive control of modular multilevel converters in VSC-HVDC systems

H Mahmoudi, M Aleenejad… - IEEE Transactions on …, 2017‏ - ieeexplore.ieee.org
This paper proposes a new modulated model predictive control method for the control of
modular multilevel converters (MMCs) in voltage source converter-high voltage dc systems …

Equivalent electromagnetic transient simulation model and fast recovery control of overhead VSC-HVDC based on SB-MMC

W **ang, W Lin, T An, J Wen… - IEEE Transactions on …, 2016‏ - ieeexplore.ieee.org
Self-blocking modular multilevel converter (SB-MMC) is able to block dc fault current with
relatively lower number of power semiconductors and lower valve power loss compared to …

Active control of DC fault currents in DC solid-state transformers during ride-through operation of multi-terminal HVDC systems

R Li, L Xu, L Yao, BW Williams - IEEE Transactions on Energy …, 2016‏ - ieeexplore.ieee.org
When a pole-to-pole dc fault occurs in a multi-terminal HVDC system, it is desirable that the
stations and dc solid-state transformers on healthy cables continue contributing to power …

Control of arm capacitor voltages in modular multilevel converters

R Lizana, MA Perez, S Bernet… - … on Power Electronics, 2015‏ - ieeexplore.ieee.org
Modular multilevel converters have several attractive features such as a modular structure,
high voltage capability and scalability, excellent quality of the output voltage waveforms, as …

Novel control strategy for modular multilevel converters based on differential flatness theory

M Mehrasa, E Pouresmaeil, S Taheri… - IEEE Journal of …, 2017‏ - ieeexplore.ieee.org
This paper aims to present a novel control strategy for modular multilevel converters (MMC)
based on differential flatness theory, in which instantaneous active and reactive power …