Research On Modeling And Simulation Of Twelve-phase Rectified Synchronous Generator Systems

With continually developing of the ship integrated power system,the request for electric supply quality and power density is higher.So the direct currentbusbar architecture useding in IPS become a new research direction.As twelve-phase rectified synchronous generator system is chaercaterized with high power density,low voltage fluctuating and good electric supply quality.It receives more and more attention to resesarch.This paper focuses on the modeling and simulation of twelve-phase rectified synchronous generator system.Basic on the mathematical model which has established,a new mehtod is built to avoid the converse calculation and equivalent circuit also is given.Furthermore, simulation modeling is built in MATLAB/Simulink to support the subsequent study.Basing on the analysis about the mathematical model of the speed governing system, its simulation model is build.This paperanalyse the character of PID control method and fuzzy control method and design fuzzy PID control system because of the advantage of the two.To contrast the two control systems,simulation testing is made.And the results show that fuzzy PID control system is better than normal PID control system in the overshoot and the time fluctuation during the adjustment process.Then,A feed forward and current feed back control method is proposed in excitation system.Simulating test is designed to get paramaters of the feed forwar.Then,it discuss the affect to operating characteristic by changing the paramater of feed back control system.The results of experiment proved the advantage of the proposed algorithm and the validity of the parameterchosen.The simultation model of twelve-phase rectified synchronous generator system has been tested.The results are presented and analyzed to verify the correctness and validity of the model.It can support the plan which is designed to research the ship integrated power system.