Accurate digital current control of the reluctance synchronous machine with constant current angle
Constant current angle control of the reluctance synchronous machine can be considered as the control of the machine at near optimum efficiency. This paper describes an accurate constant current angle control technique for a digital current controlled reluctance synchronous machine 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. Copyright © 2002 IEEE.