Accurate digital current control of the reluctance synchronous machine with constant current angle
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Constant current angle controlled reluctance synchronous machine drives can be considered as near optimum efficiency controlled drives. This paper describes an accurate constant current-angle current-control technique for a digital controlled Reluctance Synchronous Machine (RSM) drive. Using finite element calculated results accurate decoupled dq current regulators are designed and used in a digital controlled system using the TMS320F240-DSP. In the design of the controller the effect of dynamic inductances, due to saturation and cross magnetisation, on the performance of the Pi-controllers is taken into account Complete analysis, digital simulation and measured results are presented.