Proceedings ArticleDOI
Future role of power electronics in power systems
Narain G. Hingorani
- pp 13-15
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TLDR
In this paper, the basic functions of importance for power electronics are (1) power conversion, ac to dc, dc to ac, ac-to-ac, dc-to ac, AC-toac, AC to ac.Abstract:
Power electronics is in the early stages of significant technological opportunities which will greatly enhance the role and value of electricity in all aspects from generation to the end of use. Power electronics represents an enabling means in enhancing the role and value of electricity. The basic functions of importance for power electronics are (1) power conversion, ac to dc, dc to ac, ac to ac, (2) power conditioning to remove distortion, harmonics, voltage dips and overvoltages, (3) high speed and/or frequent control of electrical parameters such as currents, voltage impedance, and phase angle, and (4) high speed and/or frequent circuit interruption transfer, and current limiting functions.read more
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Journal ArticleDOI
VSC-Based HVDC Power Transmission Systems: An Overview
TL;DR: An overview of the recent advances in the area of voltage-source converter (VSC) HVdc technology is provided in this paper, where a list of VSC-based HVDC installations worldwide is included.
Journal ArticleDOI
Modular Multilevel Converters for HVDC Applications: Review on Converter Cells and Functionalities
TL;DR: In this article, the principle of modularity is used to derive the different multilevel voltage and current source converter topologies for high-power dc systems, where the derived converter cells are treated as building blocks and are contributing to the modularity of the system.
Journal ArticleDOI
Trends in power semiconductor devices
TL;DR: In this paper, the authors review recent trends in power semiconductor device technology that are leading to improvements in power losses for power electronic systems and predict that silicon carbide based switches will begin to displace these silicon devices.
Proceedings ArticleDOI
Recent Advances in High-Voltage Direct-Current Power Transmission Systems
Abstract: The ever increasing progress of high-voltage high-power fully-controlled semiconductor technology continues to have a significant impact on the development of advanced power electronic apparatus used to support optimised operations and efficient management of electrical grids, which in many cases, are fully or partially deregulated networks. Developments advance both the high-voltage direct-current (HVDC) power transmission and the flexible alternating current transmission system (FACTS) technologies. In this paper, an overview of the recent advances in the area of voltage-source converter (VSC) HVDC technology is provided. Selected key multilevel converter topologies are presented. Control and modelling methods are discussed. A list of VSC-based HVDC installations worldwide is provided. It is confirmed that the continuous development of power electronics presents cost-effective opportunities for the utilities to exploit and HVDC remains a key technology. In particular, VSC-HVDC can address not only conventional network issues such as bulk power transmission, asynchronous network interconnections, back-to-back AC system linking and voltage/stability support to mention a few, but also niche markets such as the integration of large scale renewable energy sources with the grid.
Journal ArticleDOI
Effects of unified power flow controllers on transient stability
TL;DR: In this article, the authors investigated the mechanism of the three control methods of unified power flow controllers, namely in-phase voltage control, quadrature voltage control and shunt compensation, in improving transient stability of power systems.
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