Power-Electronics Issues of Modern Electric Railway Systems

Power-Electronics Issues of Modern Electric Railway Systems

After de-regulation of the former state-owned railways and severe restructuring of the railway industry in the last 15 years, more innovative vehicle concepts saw the light of the day. Power electronics, already formerly being a pacemaker for progress of traction vehicles, brought forth an utmost standardization of the main drive by means of the IGBT-converter-fed induction motor drive. This is...

Reactive Power and Voltage Control Issues in Electric Power Systems

This chapter was prepared primarily for "non power" engineers to introduce reactive power and voltage control concepts, and to identify several issues that remain as research challenges in this area. It begins with basic definitions and information on reactive power, and then focuses on problems that have been known for many years and have surfaced recently in power system operations. These pro...

Modern Optimization Models and Techniques for Electric Power Systems Operation

This article introduces modern optimization models and solution methods for two fundamental decision making problems in electric power system operations, the optimal power flow (OPF) problem and the unit commitment (UC) problem. The article surveys some of the most recent advances, including global optimization techniques for exact solution of the OPF problem, adaptive robust optimization model...

Power-Electronics-Enabled Autonomous Power Systems

Method of Improving Voltage Quality Using Modern Power Electronics

Abstract-This paper presents a comprehensive simulation study of PI Controlled Three phase Series active power filter to improve power quality. The series active power filter employs a method for the reference compensation current based on Fast Fourier Transform Passive, L-C filters have disadvantage of fixed compensation and not fit for fast varying condition while by using auto tuned active p...