| Summary: | 碩士 === 國立彰化師範大學 === 資訊工程學系 === 105 === Motor control is a technical field old as motor itself. From the late 1970ties, various types of new designs emerged onto market. All of these new motor designs require electronics logic for both commutation and control of speed, position or torque. The simplest motor is the direct current motor. The first part of this thesis aims to create the control law and corresponding controller which is homeomorphic with direct current motor control law. The inner control loop is a torque loop; therefore, the control of torque is elaborated in detail. Indispensable part in motor control is the fast and precise calculation of angles for both currents and rotor shaft. An efficient way of calculating harmonic functions sine and cosine is required. The second part of thesis searches a way to calculate harmonic functions while preserving O(n) complexity with no trade-offs in precision. Extensive use of software packages is intermittently employed for proof of concept. Infolytica Opera Finite Element Solver, MATLAB, Verilog, and Altair Solid Embed is employed.
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