The paper presents the Switched Reluctance variable speed generator system. The structure of the switched reluctance generator, the rotor position detector, the exciting power converter and the controller are given. The mathematical models of the system are also given. Two control strategies of the constant-power output control with the constant output voltage are advanced. The experimental tested results of the prototype with two control strategies of the constant-power output control with the constant output voltage are also presented. It is shown that the generator system at the wide velocity range has the high systematical efficiency and the low peak value of phase current with adopted the fixed conducting angle PWM control strategy. All those contribute to enhancing the reliability of the system, increasing the transformed ratio of energy/electrical energy. The asymmetric bridge exciting power converter and the bifilar winding exciting power converter could be used in the system. The IGBT and MOSFET could be used as the main switches in the exciting power converter. The comparison of the two types of the exciting power converters were made, and the comparison of the two types of the main switches were also made.