What is Accident Investigation? What is Forensic Engineering? What is Risk Assessment? Who is the Forensic Engineer and what is his Role?

This chapter proposes several novel single-phase/three-phase DC-AC converters with two or more outputs, in order to satisfy the requirement of multiple AC outputs in some high-voltage high-power applications. It describes the circuit topology and operating principle. The chapter provides the carrier phase-shifted sinusoidal pulse-width modulation (CPS-SPWM) scheme which is applied to the proposed converters, and the simulation waveforms to prove the feasibility of the proposed multiple-output high-voltage DC-AC converters. It also proposes different kinds of single-input multiple-output high-voltage DC-AC inverter with the following characteristics. Two or more single-phase/three-phase AC outputs can be obtained; output frequencies can be identical or different; the switching arm is made up of NSMs, and the output voltage of the converter has multiple levels and low harmonics; and voltage stress of each power switch in the sub-module (SM) is only UDC/N.