During the last three decades, reliability analysis of power systems considering transformers, breakers, transmission lines, and generators failure has been widely applied. This analysis has been done especially in the generation and transmission levels and is mainly restricted to high voltage alternating current (HVAC) systems. HVDC transmission systems are becoming increasingly popular when c...

Sound engineers commonly use digital systems to record and analyze audio in music and film studios. Often, they need to cleanly access a single sound source such as an instrument or voice. While humans can focus their attention on any one sound source out of a mixture of many (a phenomenon termed in 1953 by E. Collin Cherry [1] as the “cocktail-party effect”), current digital audio systems lack...

This paper presents a review on the application of back-to-back converters in the field of permanent magnet synchronous generator (PMSG)-based wind energy conversion systems (WECS). The wide applications of the back-to-back converters are power conditioning devices, micro grid, high voltage direct current (HVDC), and renewable energy systems. The intention is to present an overview about the de...

Harrison’s Principles of Internal Medicine is one of the excellent, but enormous, “bibles” of medicine. In the 17th edition of this work, the sections on hematology and cancer have been combined to create a single book entitled Harrison’s Hematology and Oncology. This volume, edited by Dan Longo, is written by specialists in the field and cites recent references, which makes it both trustworthy...

Along the last years, the practical use of active filters to mitigate harmonics has been extended in electric power systems. Different configurations of series active filters versus shunt active filters have been proposed, among them, hybrid topologies which combine active and passive filters. Nevertheless, there is not any clear accordance about the most suitable configuration for each type of...

In this paper, a 3-phase active power filter (APF) is presented to eliminate harmonics and to compensate the reactive power of an uncontrolled rectifier with capacitive loading taken as non-linear load. An APF is realized using 3-phase voltage source inverter (VSI) with dc bus capacitor. Reference source currents are estimated using P-I control over dc bus voltage and 3-phase source voltages. C...