Analysis of Protection Relay Malfunctioning in Medium Voltage Grids

The electrical power system generates and supplies electric energy to consumers and it must operate in a safe manner at all times. Despite its good performance, disturbances such as the occurrence of short circuits can always take place. Because short circuits cannot be prevented, the system must be able to recognize them and take corrective...

Design Study on the Switched and Linear Operation of Broadband CMOS Class-E Power Amplifiers

This research work aims to gain understanding of the power amplifier (PA) operating as a linear PA under low power drive conditions and as a switch-mode PA in high power drive conditions both with the same Class-E load. Two approaches were taken here. Firstly, an analytical approach was developed to investigate the switching operation of...