chapter  26
10 Pages


Small, portable or fix, single-phase generators are built for up to 10-20 kW. Traditionally they use a synchronous single-phase generator with rotating diodes. Self-excited, self-regulated single-phase induction generators (IGs) provide, in principle, good voltage regulation, more power output/weight and a more sinusoidal output voltage. In some applications, where tight voltage control is required, power electronics may be introduced to vary the capacitors “seen” by the IM. Among the many possible configurations [1,2] we investigate here only one, which holds a high degree of generality in its analysis and seems very practical at the same time (Figure 26.1).