On adaptive control applied to speed regulation of marine diesel engine

The paper establishes a mathematical model to describe the rotation speed regulation process of a marine diesel engine system. Then an adaptive control system with fault treatment algorithm is designed for the control of the rotation speed. The adaptive control system makes self-organizing through modification of its weighted values which are determined through correlative search, as well as a coefficient of smoothness is adopted to smooth the process of the weighted value modification. The adaptive control system contains a fault treatment algorithm which is able to maintain stability of main engine operation when the rotation speed regulation system operates in abnormal conditions. The result of simulation experiment shows that the application of designed adaptive control system is able to make the rotation speed regulation process of a marine diesel engine achieve both characteristics of reliability and efficiency.