Control of turbocharged ship diesel engines using a nonlinear optimal control method

摘要: A nonlinear optimal (H-infinity) control approach is proposed for turbocharged diesel engines with potential use in ship propulsion. The dynamic model of the engine undergoes approximate linearization round a temporary operating point. This defined at each time instant by present value system's state vector and last input that was exerted on it. based Taylor series expansion computation associated Jacobian matrices. For linearized an H-infinity feedback controller computed. controller's gain calculated solving algebraic Riccati equation iteration method. asymptotic stability proven through Lyapunov analysis. assures variables will finally converge to designated reference values. Optimal functioning signifies improved power, reduced polluting emissions fuel consumption.