Shamik Bandyopadhyay, G KPanda, P KSaha
A buck converter is a very common and useful device in modern power electronics. It has wide application in modern HVDC power system network. There are mainly two methods of controlling the DC-DC converters. One is the traditional method that is linear control. With the help of linear control satisfactory result can be obtain until a certain limit. Due to huge load variation and source voltage variation linear control may not give satisfactory result. PID controller is a very popular linear controller. The other method is non-linear control technique. Two popular and cost effective non-linear technique is Sliding mode control and Hysteresis control. Both have wide application in power converter section. The control method that gives the best performances under any conditions is always in demand.
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