Results 31 to 40 of about 151 (135)
IET Energy Systems Integration, Volume 8, Issue 1, January/December 2026.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
Multichoice Control Strategy for VSC-HVdc
2007 iREP Symposium - Bulk Power System Dynamics and Control - VII. Revitalizing Operational Reliability, 2007 Multichoice control strategy -MCS-consists in the selection of the correct input signals that will allow the VSC-HVDC to enhance the transient stability of the system, increase the level of damping, provide voltage support at specific nodes or change the power flow in the system, as it is required by the system when disturbances occur or ordered by the
H.F. Latorre, M. Ghandhari, L. Soder
openaire +2 more sources
Fault Current Characterisation in VSC-based HVDC Systems [PDF]
13th International Conference on Development in Power System Protection 2016 (DPSP), 2016 The DC-side line faults in high-voltage direct-current (HVDC) systems utilising voltage-source converters (VSCs) are a major concern for multi-terminal HVDC systems in which complete isolation of the faulted system is not a viable option. A number of challenges are posed by both pole-to-pole and pole-to-ground faults including the presence of very fast
Ademi, Sul +4 more
openaire +2 more sources
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
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
IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.1) The typical operational risks and coupling characteristics of the AC/DC hybrid power grid are analyzed in detail. 2) A bi‐Level topology optimization method is designed for HVDC systems embedded in dense AC grids. 3) Considering engineering standards of both security and economy, multi‐dimensional security and stability constraints are incorporated ...
Mingxin Yan +5 more
wiley +1 more source
IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.This paper addresses challenges in large‐scale offshore wind power integration by proposing a coordinated control strategy for low‐frequency networking using the modular multilevel matrix converter (M3C), enabling stable multi‐terminal and multi‐farm connections.
Shihong Shi +9 more
wiley +1 more source
IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.In recent years, with the large‐scale access of intermittent renewable energy such as wind power and photovoltaics, the flexible DC transmission technology based on modular multilevel converters has broad application prospects in large‐scale new energy grid connections and long‐distance, large‐capacity transmission.
Qiang Zhang +7 more
wiley +1 more source
IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.This paper investigates the small‐signal stability of offshore energy islands interconnected by multiple MMC‐HVDC links and reveals a previously unreported sub‐synchronous oscillation (SSO) mechanism caused by multi‐converter coupling through the offshore AC network.
Arash July +5 more
wiley +1 more source
Impact of short-duration voltage variations on VSC-HVDC performance. [PDF]
Sci Rep, 2023 Mostafa RA +3 more
europepmc +1 more source