
23-1
23.1 Introduction
Standalone, AC voltage, power generation systems with conversion of mechanical energy mainly use
wound rotor synchronous generators (WRSGs) operated with xed speed, related to the reference fre-
quency, e.g., 50 or 60 Hz. Power systems, like wind turbines or water plants, in which xed speed is
dicult to obtain, can be adopted to standalone variable-speed operation and provide standard xed
frequency AC voltage. Normalized voltage can be obtained by the use of full-range power electronics
converter, as a coupler interface between variable-speed generator and an isolated load (Figure 23.1).
WRSG or permanent magnet sy ...