Fault Ride Through strategies for Permanent Magnets Wind Generators

Belloni, Federico; Chiumeo, R.; Gandolfi, Chiara

doi:10.1109/speedam.2012.6264525

Cited by 2 publications

(1 citation statement)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Variable speed WECSs based on multipolar permanent magnet synchronous generators (PMSGs) are emerging as a robust alternative to grid connected wind systems based on the doubly fed induction generator [7][8][9][10]. Topologically, these systems are usually linked to the utility grid through a full-rated back-to-back converter with an intermediate direct current bus (DC-bus) to facilitate the necessary frequency conversion between the generator and the grid (see Fig.…”

Section: Introductionmentioning

confidence: 99%

Multiple‐input–multiple‐output high‐order sliding mode control for a permanent magnet synchronous generator wind‐based system with grid support capabilities

Valenciaga

Fernández

2015

IET Renewable Power Generation

View full text Add to dashboard Cite

This study presents a control design for a grid connected wind energy conversion system based on a gearless PMSG. The generation system structure comprises a three blade turbine, a 2 MW multi-pole PMSG and a full-scale backto-back frequency converter linked to the utility grid. The proposed control scheme allows following dynamical specifications taking into account operational requirements and ancillary services imposed by the recent grid connection codes, that is, reactive power regulation and fault ride-through (FRT) capabilities. The control actions to be applied during normal grid operation are designed through second-order sliding mode techniques using a two-stage cascade structure. The multi-variable controller designed attains to regulate the active and reactive powers delivered to the grid, minimising the resistive losses into the generator and maintaining important internal variables into the desired range. This controller presents attractive advantages such as robustness against unmodelled dynamics and external perturbations, finite time convergence to the sliding surfaces and chattering mitigation. To endorse the controlled system with FRT capabilities, a switching control scheme based on voltage grid measurements is also proposed. The performance of the whole control approach is analysed through representative simulations which include parameter variations, external perturbations and three-phase voltage dips.

show abstract

Section: Introductionmentioning

confidence: 99%