Switched Reluctance Drive System

Lower manufacture cost, higher dependability and efficiency, which are the recent developing trends of motion control system, are features of Switched Reluctance Motor (SRM) over other types of motor. Associating with the development of power electronic technology and modern control theory, the research on Switched Reluctance Driving (SRD) system becomes the hotspot among the corresponding fields. This thesis targeted at researching on SRD control theory and system design. SRM has various types of control parameter, which were catalogued into different control methods according to the running condition.SRM is a complicated-nonlinear system due to its dual-salient-pole structure. Based on the general differential equations of electromagnetic motion system, two types of SRM mathematical model, the piecewise-linearization model and the non-linearization model, were created. They distinguish between each other with the approximation to the ideal magnetization curve.The dual-salient-pole structure also makes the ripple-free torque control of SRM one of the hottest issues. Aiming at ripple-free torque control, a method for designing SRM optimum controller was issued. Based on the theory of iterative learning control (ILC), the conclusion for the astringency and stability of ILC in single-in-single-out non-linear system was set forth. The optimum controller was consisted of torque controller and current controller. The results of computer simulation proved that the steady state error of torque is diminished under the condition of constant torque load. A good performance for astringency and stability was also exhibited. The SRD experimental system is an open platform for researching. Powered by LabVIEW and Virtual Instruments' technology, the operation interface SRD experimental system was redesigned.As the increasing application of SRD in the mining-industry, the 110kW SRD for underground mining conveyor drive was designed. The system's architecture, which was consist of power control and protection subsystem and the low-voltage control system, was proved to be robust in the 380V-level in-the-field test with rated load. Further improvement and research can be done beyond such architecture.