ELE3805: Power Electronics Principles, Applications, and System Design

This assignment provides solutions to several power electronics problems. The first section focuses on the analysis of single-phase rectifiers, calculating mean values of voltages and sketching waveforms for both full and half-controlled rectifiers. It then delves into notch depth calculations caused by commutation events in rectifier circuits. The assignment then shifts to inverter analysis, including bipolar and unipolar sinusoidal pulse width modulation (PWM) modes, determining RMS values of fundamental components, and analyzing harmonic ratios. Finally, the assignment concludes with the design of an evaporative cooling system, including a block diagram of the control system, pump control strategy, and detailed calculations for various operating conditions and throttle valve positions, including Q-H curve analysis and the design of a variable speed drive system. The assignment covers a wide range of topics, including the design and analysis of power electronics circuits and systems.