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In this paper the control of a boost converter in the presence of an uncertain load resistance is addressed. Exploiting a suitable change of coordinates and pointing out the internal and the external dynamics of the converter, a sliding mode control law is considered for the regulation of the converter output voltage. A sliding mode observer is introduced, whose dynamics allows to estimate the unknown...
In a recent paper a procedure to design globally asymptotically stable linear proportional plus integral controllers for switched power converters was proposed. The construction requires the measurement of the full state of the system, which is often unavailable in practice. In this note we identify a class of converters for which an asymptotically convergent reduced order observer, preserving the...
Highly dynamic stator-flux-oriented controls need an exact model-based observer of the induction machine to predict the non-measurable fluxes and to calculate the speed in sensorless operation. Inverter voltage errors cause inaccuracy and instability in the observer. Therefore an offline-measurement procedure without any additional measurement devices is presented, to identify the error voltages....
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