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dc.contributor.authorTu, Hsin-Changen_US
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dc.description.abstractThe purpose of this thesis is to develop a sensorless positioning method for a four-phase switched reluctance motor so as to fully replace the optical encoder in the driving mechanism. We install two current sensors in the dual-forward converter. By substituting the current information into the flux linkage dynamics, we obtain the instantaneous inductance value, so that the rotor position can be virtually estimated. We use a digital signal processor for computing the system parameters, which are then fed into the inductance computing algorithm. It is found that the inductance information alone is sufficient for driving purpose. The idea is confirmed by computer simulations as well as experimental data.en_US
dc.description.tableofcontentsAcknowledgement ii Chinese Abstract iii English Abstract iv Contents v List of Figures vii List of Tables ix Notations x Chapter 1: Introduction 1 1.1 Motivation 1 1.2 Literature Review 1 1.3 Goal of Thesis 5 1.4 Organization of the Thesis 5 Chapter 2: System Dynamic of A Switches Reluctance Motor 6 2.1 Structure of A Switched Reluctance Motor 6 2.2 Machine Topologies and Principle Rotated 8 2.3 Linearized Inductance of Each Phase 12 2.4 Dynamic Model of A SRM 14 Chapter 3: Design of Drive Circuit 19 3.1 Drive Topology of SRM 19 3.2 Optical Encoder 25 Chapter 4: The System of Sensorless Position Estimate 27 4.1 Description for Sensorless System 27 4.2 The Method of Sensorless Inductance Estimate 28 4.3 Simulations 33 Chapter 5: System Integration and Implementation 39 5.1 System Architecture 39 5.2 Digital Signal Processor 40 5.3 Experimental Result 41 Chapter 6: Conclusion 46 6.1 Conclusion 46 6.2 Future Work 46 Reference 47en_US
dc.titleA Sensorless Drive with Inductance Estimation for Switched Reluctance Motorsen_US
dc.typeThesis and Dissertationzh_TW
item.openairetypeThesis and Dissertation-
item.fulltextno fulltext-
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