Control of Three-Level PWM Converter Applied to Variable-Speed-Type Turbines

This paper proposes advanced control of a three-phase three-level neutral-point-clamped pulsewidth-modulated (PWM) converter connecting a permanent-magnet synchronous generator to a grid. The control scheme is mainly based on active and reactive power loops and contains the following additional bloc...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on industrial electronics (1982) 2009-01, Vol.56 (1), p.69-77
Main Authors: Malinowski, M., Stynski, S., Kolomyjski, W., Kazmierkowski, M.P.
Format: Article
Language:English
Subjects:
AC generator
active damping (AD)
Algorithms
Converters
Damping
direct power control (DPC)
Electric potential
Joining processes
Minimization
modulation
multilevel converter
Optimization
Pulse duration modulation
Pulse width modulation
Pulse width modulation converters
Reactive power control
Sensorless control
Switching
Switching loss
Synchronous generators
Turbines
Voltage
Voltage control
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper proposes advanced control of a three-phase three-level neutral-point-clamped pulsewidth-modulated (PWM) converter connecting a permanent-magnet synchronous generator to a grid. The control scheme is mainly based on active and reactive power loops and contains the following additional blocks: virtual flux and filter-capacitor voltage estimators for sensorless operation, active damping (AD) of possible resonances in the LCL filter that connects the converter to the grid, and a PWM modulator with dc-link voltage balancing and minimization of switching losses. It is shown that the proposed control method exhibits several features such as sensorless operation, robust algorithm, minimization of switching losses, and simple tuning procedure of AD. The simulation and experimental results have proven an excellent performance and verified the validity of the proposed system.
ISSN:0278-0046
1557-9948
DOI:10.1109/TIE.2008.927245