A New Power Conversion System for Megawatt PMSG Wind Turbines Using Four-Level Converters and a Simple Control Scheme Based on Two-Step Model Predictive Strategy-Part II: Simulation and Experimental Analysis

Yaramasu, V.; Wu, B.; Rivera M.; Rodriguez J.

Keywords: grid-connected, predictive control, wind energy, digital control, multilevel converter, current control, ac-dc power conversion, dc-ac power conversion, renewable energy, power conversion, Boost converter, dc-dc power conversion, dc-link capacitor voltages balancing, direct-driven, four-level boost, maximum power point tracking, medium voltage (MV), megawatt-level, permanent magnet synchronous machine, state-space model, common-mode voltages (CMVs)

Abstract

In this paper, a new medium-voltage power conversion system consisting of a four-level boost converter and four-level diode-clamped inverter is proposed for permanent magnet synchronous generator-based megawatt-level wind turbines. To achieve a simple and optimal control performance, a simplified two-step model predictive strategy is proposed. The high-power wind turbine requirements, which include maximum energy harvesting, balancing of dc-link capacitor voltages, net dc-bus voltage control, regulation of grid-reactive power, and the minimization of both switching frequency and common-mode voltage are expressed as cost functions. The best switching states are chosen and applied to the power converters during each sampling interval based on the minimization of cost functions. The feasibility of the proposed configuration and control scheme are verified through MATLAB/Simulink tests on a high power (5 MVA/4160 V/694 A) system and dSPACE experiments on a low power (3.6 kVA/208 V/10 A) prototype.

Más información

Título según WOS: A New Power Conversion System for Megawatt PMSG Wind Turbines Using Four-Level Converters and a Simple Control Scheme Based on Two-Step Model Predictive Strategy-Part II: Simulation and Experimental Analysis
Título según SCOPUS: A new power conversion system for megawatt PMSG wind turbines using four-level converters and a simple control scheme based on two-step model predictive strategy - Part II: Simulation and experimental analysis
Título de la Revista: IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS
Volumen: 2
Número: 1
Editorial: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Fecha de publicación: 2014
Página de inicio: 14
Página final: 25
Idioma: English
DOI:

10.1109/JESTPE.2013.2294922

Notas: ISI, SCOPUS