In spite of many advantages of an asynchronous generator, its
use in isolated systems has been very limited due to the
difficulties involving in conholling the variation of its generated
voltage and frequency due to variation of load current.
This paper gives the possibility to minimize the variation of the
output voltage and frequency. The technique utilize an algorithmis
implemented using PLC devices.
PLC has the resposibility of the system sequence control for
output voltage and frequency.
The system functions were analized and implemented in PLC
based hardware and software. The control system was tested
systematically in the laboratory and shows excellent performance.