Analysis of power electronic converters using the generalized state-space averaging approach

Power electronic converters are periodic time-variant systems, because of their switching operation. The generalized state-spate averaging method is a way to model them as time independent systems, defined by a unified set of differential equations, capable of representing circuit waveforms. Therefore, it can be a convenient approach for designing controllers to be applied to switched converters, This brief shows that the generalized state-space averaging method works well only within specific converter topologies and parametric limits, H-here the model approximation order is not defined by the topology number of components, This point is illustrated with detailed examples from several basic dc/dc converter topologies.