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Based On The Hamilton Theory Marine Power System Coordinated Control Study

Posted on:2013-11-09Degree:MasterType:Thesis
Country:ChinaCandidate:H P DaiFull Text:PDF
GTID:2232330374452772Subject:Marine Engineering
Abstract/Summary:PDF Full Text Request
Along with the expansion of the scale of the Marine Power System, the increasing complexity of its structure and operation mode, certainly the safe and stable operation of the Marine Power System is influenced. It is a new challenge to make sure the stability. The Marine Power System is a high dimensional nonlinear system. Only by applying the nonlinear control theory, the system can achieve better dynamic and static performance of the system stability. At the same time, the speed control and excitation control are both for the control of the system stability, it is mutual coupling variable. Compared with the speed control and the excitation control respectively, it can obtain better stability by the unified control. Therefore, based on the nonlinear control theory, to improve the stability of the Marine Power System, it is a theory value and practical significance study task to study the coordinated controller both them.The Marine Power System is described by using the differential algebraic equations, so the corresponding detailed nonlinear mathematical model is presented, and it is able to show the internal coupling relationship between the excitation control variable and speed control variable. It is also convenient for study their coordinated control. The Hamilton theory based on the viewpoint of energy has been paid attention to the system stability analysis, system stabilization and other issues increasingly and its application in Marine Power System. This thesis proposed the Hamiltonian realization formulation for the differential algebraic equations. To take advantage of it design the corresponding controller for the Marine Power System stability coordination control study.Based on the MATLAB/Simulink simulation platform, the simulation model is built up. According to typical working conditions and typical fault, To use a simulation experiment obtained the corresponding experimental results respectively. Combined with the classical PID control method, this thesis analyzed the experimental results of analysis by the comparative analysis and CCS Index determination methods qualitatively and quantitatively, validating the correctness and rationality of the Marine Power System stability coordination control study based on Hamilton theory.By the two kinds of analysis, compared with PID comprehensive controller, the Hamiltonian controller can satisfy the requirements of CCS index, obtain much better control precision, and better regulate the stability of the system, and satisfy the needs of the development of the ship technology increasingly. But at the same time in the course of the research, there are also some problems that need to be resolved further, to obtain the better control precision.
Keywords/Search Tags:Hamilton Theory, Marine Power System, Transient Stability, Coordinated Control, MATLAB/Simulink
PDF Full Text Request
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