The principle of switched reluctance generator (SRG) is described based on the description of the electromagnetic characteristic, the analysis of the phase-current waveform, the energy conversion and other aspects, and the control schemes for modulating the power output of SRG, i.e., angle control, chopping-current control, PWM control and direct excitation voltage control are introduced. Finally, experimental results of 6/4, 6/6, 8/8 SRGs are presented. SRG studies show that this novel generator can find a wide application field and has some superior characteristics of simple construction, high density of energy, high capacity of over loading, high fault-tolerance performance, and good steady and transient performances.