Basic performance of flux-compression/expansion electromechanical converters

Simple cases that are amenable to closed-form formulas are studied in order to establish the relations between the parameters of the converter circuits, predict the important aspects of performance, and provide guidelines for the design. The performance cycle of the generators involves three phases: (1) buildup of the initial flux interlinkage, or field excitation; (2) flux compression and accompanying current rise; and (3) current decay. The flux compression phase is considered for two cases: (1) the circuit does not contain a voltage source or the voltage source is a self-excited generator, such as a homopolar one, operating at constant speed, and (2) the circuit contains a constant voltage source. Flux-expansion launchers are considered.<>