Study on robust Auto-MAP-Modify method for High-power Variable-Speed Governor of Diesel Engine by Extended State Observer

摘要

This paper present robust Auto-MAP-Modify method for High-power Variable-Speed Governor of Diesel Engine by extended state observer. Firstly the uncertain between MAP parameter and real parameter is defined as additive-Perturbations. Secondly the original controller is reconstructed as a dynamic controller for sensitivity and noises, meanwhile a static controller for Auto-MAPModify. The H∞ norm index is utilized to synthetically value robustness of the system. Finally Auto-MAP-Modify controller is designed by the Extended State Observer. Simulation and Bench test results show that the method is efficient for conquering the uncertain of MAP parameters. Compared with on board GA and Alopex algorithm, this method achieves rapider convergence rate and simpler structure.