TB 337 2007 JWG B4/A3/B3.43 Increased System Efficiency by Use of New Generations of Power Semiconductors

The TB presents the present developments of power semiconductors, with lower losses, higher switching frequency, converter modularization…, and their new application areas, in order to propose and evaluate new or enhance equipment for increased system efficiency.

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1 Overview

      1.1 Introduction

      1.2 Considered technology

      1.3 Method & criteria

2 New generations of power semiconductors – general trends

      2.1 Devices without turn-off capability

            2.1.1 Diodes

            2.1.2 Thyristors

      2.2 Devices with turn-off capability

            2.2.1 GTOs and IGCTs

            2.2.2 Transistors

            2.2.3 Advanced turn-off devices

      2.3 Mechanical construction, housing technology

      2.4 New developments

      2.5 Conclusion and outlook

3 Conventional switching applications

      3.1 Introduction

      3.2 Transfer switches

      3.3 Solid state breakers

      3.4 Fault current limiters

      3.5 On load tap changers

      3.6 Conclusion

4 Ratings and topologies of power electronic systems

      4.1 Introduction

      4.2 State of the art converter topologies

            4.2.1 Topologies for distribution system applications

            4.2.2 Topologies for Transmission System Applications

      4.3 Trends in converter technologies

            4.3.1 Voltage sourced converter

            4.3.2 Multilevel converter concepts

            4.3.3 Resonant converters

            4.3.4 Self-commutated current sourced converters

            4.3.5 Matrix converters

5 Power Electronic Building Blocks

      5.1 General motivation

      5.2 Definition of the Power Electronics Building Block (PEBB)

      5.3 Power Electronics Building Blocks: A platform-based approach

      5.4 PEBB based power electronics systems

      5.5 NPC IGCT PEBB technology and FACTS applications

            5.5.1 The NPC IGCT PEBB

            5.5.2 Applications of the NPC IGCT PEBB

      5.6 Importance of the PEBB concept to FACTS controllers

      5.7 Summary and outlook

6 Enabled new devices and design impact on substations

      6.1 Hybrid approaches – Example FACTS devices

            6.1.1 Technological basis

            6.1.2 System design issues

            6.1.3 Control system

      6.2 Generalized Impact of new technologies on substation design [99]

      6.3 System impact on substations [99]

            6.3.1 The impact on the single line diagram

            6.3.2 Bay level changes and design trends

      6.4 Examples for impact analysis of new devices [99]