A power-based perspective in modeling and control of switched power converters [Past and Present]

Nonlinear passivity-based control (PBc) algorithms for switched converters have proven to be an interesting alternative to most linear, control techniques. A possible drawback though of PBC is that it relies on a (partial) system inversion. This usually results in indirect regulations schemes to control non-minimum phase outputs. Recently, a new control paradigm for nonlinear electrical circuits has been presented using the mixed-potential as a control-Lyapunov function. On-going research aims at extending the paradigm to switched power converters in order to avoid the system inversion problem.