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With the increased emphasis on climate change and reducing harmful emissions in the atmosphere, interest in power electronics converters and electric motor drives has led to significant new developments in renewable energy systems or electric propulsion. By and large, an electric machine and a power converter are required as a means of propulsion in transportation-related applications, and an electric generator and a power converter are indispensable parts of many wind-energy-based generation systems.
A wide variety of methods have been used in the primary control of a voltage source converters (VSCs). The aim of this introduction is to present a review of the most commonly adopted current and voltage control methods and to explain their advantages and limitations when they are implemented in a microgrid (MG). The most common approaches use techniques from classical linear control, modern linear control, nonlinear control, adaptive control, robust control, and model predictive control. Among the different methods, linear controllers are the most commonly adopted solutions for the primary control of a voltage source converters (VSCs) because, in a MG, both the physical plant and the most common types of disturbances are usually effectively represented by linear models. Moreover, compared to non-linear control structures, linear methods offer a wider range of mathematical tools for analysis, which allow to determine the stability, the performance, and the robustness under different conditions. Due to this advantages, linear controllers are particularly suited for this type of application.
Preface
Chapter 1 Current and Voltage Control of AC Power Electronic Converters in Microgrids
Chapter 2 State-of-the-Art Multi-Phase Windings Types
Chapter 3 Virtual Vector Control of Six-Phase Induction Machines
Chapter 4 Current Derating in Fault-Tolerant Multiphase Induction Methods for Induction Motors
Chapter 5 A Systematic Review of Fault Detection and Diagnosis Methods for Induction Motors