SMC based Nx converter

The use of renewable energy sources is increasing rapidly. Solar PV system is the most efficient and reliable renewable energy source. The output of PV system is DC and it varies considerably with change in operating conditions. To increase the reliability of PV system it is required to maintain its output irrespective of operating conditions and to avail this purpose, DC-DC converters are connected at output terminals of PV system. Various techniques are available to control the operation of these converters. As DC-DC converters is non-linear system. So to alter dynamics of nonlinear system by application of a discontinuous control signal, this paper presents Sliding mode control or SMC for Inverting Nx-Multilevel Boost Converter.