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Über dieses Buch

This book aims to investigate emerging power quality and stability problems as well as their solutions in more-electronics power systems. The majority of methods presented here are validated through simulation and/or experimental results, thereby improving their credibility. The ultimate objective of these methods is to achieve secured operation of modern power systems with increased (up to 100%) renewable energy penetration, which is an emerging topic in this field. Readers will not only learn about the knowledge of more-electronics power systems but also the step-by-step process of how they can implement this to their research work or industrial practice. This book caters to engineers and academics working in the field of power systems with the main focus of improving power quality and stability.

Inhaltsverzeichnis

Frontmatter

Chapter 1. Fundamentals of More-Electronics Power Systems

Abstract
This chapter introduces fundamental knowledge and background of more-electronics power systems. It begins with a brief introduction to power engineering. Next, the chapter provides an overview of power electronics. This is followed by a bird’s-eye view of power systems. Further, a marriage of power electronics and power systems gives rise to more-electronics power systems. From the second section, each section presents basic concepts, shows salient features, details subtopics, and finally ends with typical and emerging applications of power electronics, power systems, or more-electronics power systems.
Jingyang Fang

Chapter 2. Power Quality Problems and Standards

Abstract
This chapter reviews power quality problems in more-electronics power systems. In general, power quality problems are categorized into two groups—voltage quality problems and current quality problems. This chapter first discusses voltage quality problems and their mechanisms. Next, current quality problems, together with their features, are detailed. Finally, this chapter ends with standards on power quality.
Jingyang Fang

Chapter 3. Power Quality Conditioning

Abstract
This chapter presents state-of-the-art solutions to power quality problems in more-electronics power systems. It begins with passive solutions. In particular, power electronics-based power conditioning equipment, including uninterruptable power supplies (UPSs), dynamic voltage restorers (DVRs), static compensators (STATCOMs), active power filters (APFs), and unified power quality conditioners (UPQCs), forms the main part of this chapter. The fundamental principles, modeling and control, and results of such power conditioning equipment are highlighted.
Jingyang Fang

Chapter 4. Stability Problems

Abstract
This chapter summarizes stability problems in more-electronics power systems. Broadly speaking, stability problems are classified into converter-level and system-level stability problems. Specifically, converter-level stability problems can be caused by improper controller designs, time-delays, weak grids, and power quality problems. System-level stability problems should be blamed for active and reactive power imbalances. This chapter identifies the mechanisms behind instability through detailed stability analyses.
Jingyang Fang

Chapter 5. Stability Improvement Techniques

Abstract
This chapter introduces stability improvement techniques in more-electronics power systems. In particular, the chapter focuses on power electronic-based improvement techniques. For converter-level stability problems, solutions or improvement techniques are mainly classified into proper controller design, time-delay reduction, weak grid techniques, and power quality conditioning. For system-level stability problems, improvement techniques mainly aim to balance active power through damping and inertia enhancement, while reactive power compensation is briefly revisited.
Jingyang Fang
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