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摘要
A nonlinear adaptive observer for a cascaded H-bridge multilevel converter is proposed. Using an instantaneous model of the system arranged as a set of subsystems, to take advantage of the converter structure, an adaptive observer is designed. The proposed observer is able to work even in the presence of system parameter uncertainties. This observer scheme can be used to replace the voltage sensors needed to control and monitoring the system capacitor voltages. Simulation results are used to validate the performance of the proposed observer when the multilevel converter is used as an electrical network compensator.
- 出版日期2011-10
