Wednesday, June 13, 2018

MODEL PREDICTIVE CONTROL OF HIGH POWER CONVERTERS AND INDUSTRIAL DRIVES BY Tobias Geyer

MODEL PREDICTIVE CONTROL OF HIGH POWER CONVERTERS AND INDUSTRIAL DRIVES BY Tobias Geyer
Contents:
1 Introduction
2 Industrial Power Electronics
3 Classic Control and Modulation Schemes
4 Predictive Control with Short Horizons
5 Predictive Control with Long Horizons
6 Performance Evaluation of Predictive Control with Long Horizons
7 Model Predictive Direct Torque Control
8 Performance Evaluation of Model Predictive Direct Torque Control
9 Analysis and Feasibility of Model Predictive Direct Torque Control
10 Computationally Efficient Model Predictive Direct Torque Control
11 Derivatives of Model Predictive Direct Torque Control
12 Model Predictive Pulse Pattern Control
13 Performance Evaluation of Model Predictive Pulse Pattern Control
14 Model Predictive Control of a Modular Multilevel Converter
15 Summary and Conclusion
Preface:
This book focuses on model predictive control (MPC) schemes for industrial power electronics. The emphasis is on three-phase ac–dc and dc–ac power conversion systems for high-power applications of 1 MVA and above. These systems are predominantly based on multilevel volt age source converters that operate at switching frequencies well below 1 kHz. The book mostly considers medium-voltage (MV), variable-speed drive systems and, to a lesser extent, MV grid-connected converters. The proposed control techniques can also be applied to low-voltage power converters when operated at low pulse number, that is, at small ratios between the switching frequency and the fundamental frequency. For high-power converters, the pulse number typically ranges between 5 and 15. As a result, the concept of averaging, which is commonly applied to power electronic systems to concealthe switching aspect from the control problem, leads to performance deterioration. In general, to achieve the highest possible performance for a high-power converter, averaging is to be avoided, and the traditionally used current control loop and modulator should be replaced by one single control entity.

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