A digital PID speed controller for a diesel generating set

With rise in the number of commercial and industrial companies using diesel generating sets to maintain the continuity or reduce the cost of their electricity supply, a more sophisticated control of the generator is sought. Traditionally analogue technology has been employed to provide generator speed and excitation control however by employing digital technology, much improved generator control can be achieved. This paper is concerned with the implementation of a digital PID governor. The results show that with even a simple digital PID control algorithm and the tuning there off, the ease of tuning can be improved via computer simulation and that the controller itself can match and out perform its analogue counterpart. The ultimate goal of the work is the integration of the governor and automatic voltage regulator. By using modern control techniques such as fuzzy logic, full integration of the two controllers is sought and hence a more intelligent generator control system.