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The Basic Research of Switched Reluctance Double-Rotor Applied to Transmission System

Author: ZhengYongLong
Tutor: CuiShuMei
School: Harbin Institute of Technology
Course: Electrical Engineering
Keywords: Four - port electromechanical energy converter SRM Dual - rotor motor Magnetic field coupling Torque Control
CLC: TM352
Type: Master's thesis
Year: 2010
Downloads: 28
Quote: 0
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Abstract


By adding another rotor, the double-rotor machine evolves to a new breed machine with dual mechanical ports and dual electrical ports. The main characteristic of SRDRM is double salient structure with high reliability and wide constant power area compared with other types of double-rotor machines. However,due to it’s special structure,magnetic field affect mutually.it leads to many complex problems,like field coupling,variable parameters,control method,modeling and control strategy,etc.these is different from conventional motor.By now,research on RSD is still at initial stage,so it’s development is limited.This paper will focus on the math model and control method of switch reluctance based FPEMEC.Firstly, the thesis presents the working principle of SRDRM, and builds an equivalent magnetic-network model based on its magnetic structure. Secondly, given the linear magnetic route condition, the flux linkage equation, EMF equation, torque equation and mechanical movement equation with the static characteristic are analyzed. The theoretical analysis and computation fundamental of SRDRM is established.Also, the thesis makes FEM simulation for the investigation of its inner electromagnetic field, analyzes the impact caused by magnetic coupling on torques, and finds out the torque performance discipline by comparing the torque waveforms of either stator winding or inner-rotor winding is excited alone.What’s more,focus on the sourse wasted and signal different step which are caused by the two independent controller,the paper builds a control platform based on TMS320LF2407,designs the control circuit drive circuit and protect circuit,decoupling idea is also proposed is software.The simulation researches on the control system of SRM. Using four phase half-bridge of asymmetric power topology structure, the steady-state performance and dynamic characteristics of the inner motor and outer motor are analyzed in Matlab/Simulink. Finally, Based on the theoretical analysis, the control system of two rotor SRM can be simulinked by considering the magnetic coupling.

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CLC: > Industrial Technology > Electrotechnical > Motor > A special motor > Reluctance motor
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