Using Averaged Modeling for Capacitors Voltages Observer in NPC Inverter | Zendy

Bassem Omri | Zendy; Kaiçar Ammous | Zendy; Anis Ammous | Zendy

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Using Averaged Modeling for Capacitors Voltages Observer in NPC Inverter

Author(s) -

Bassem Omri,

Kaiçar Ammous,

Anis Ammous

Publication year - 2012

Publication title -

advances in power electronics

Language(s) - English

Resource type - Journals

eISSN - 2090-1828

pISSN - 2090-181X

DOI - 10.1155/2012/176876

Subject(s) - observer (physics) , capacitor , inverter , control theory (sociology) , matlab , voltage , point (geometry) , computer science , electronic engineering , engineering , mathematics , electrical engineering , physics , control (management) , artificial intelligence , geometry , quantum mechanics , operating system

This paper developed an adaptive observer to estimate capacitors voltages of a three-level neutral-point-clamped (NPC) inverter. A robust estimated method using one parameter is proposed, which eliminates the voltages sensors. An averaged modeling of the inverter was used to develop the observer. This kind of modeling allows a good trade-off between simulation cost and precision. Circuit model of the inverter (implemented in Simpower Matlab simulator) associated to the observer algorithm was used to validate the proposed algorithm

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