Advanced controlled series compensated self-excited induction generator

The dynamic reactive power (VAr) requirements limits the applications of self-excited induction generators (SEIG) because of poor voltage regulation even at constant speeds. Fixed and varying VAr compensators with conventional devices (such as synchronous condensers, shunt capacitors, series capacitors) have inherent problems like sluggish response, undue overvoltage, switching transients, sub-synchronous resonance, etc. In this paper, application of an advanced controlled series compensator (ACSC) for the voltage control of SEIG at different speeds is discussed. An ACSC-SEIG system is modeled and analysed. The theoretical results are supported with experimental results in order to establish the effectiveness of the proposed scheme.