Fast Response and Optimum Regulation in Digitally Controlled Thyristor Converters

Ideally, in discrete-data control systems the output parameter must follow the input reference with minimum delay, preferably within one sampling interval. The fast response and optimum regulation methodology described finds such an ideal response for linear discrete-data systems. It is found that the completed feedback loop is significant in determining the influence of the distribution parameters to the response, with the first step response considerably improved by using a variable-gain control. Theoretical calculations, using Z transform theory, and experimental results are in agreement and confirm the applicability of the technique.