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Communication Dans Un Congrès Année : 2015

Power quality improvement using an advanced control of a four-leg multilevel converter

Résumé

In this paper, the transient operation of a Three-Level Neutral Point Clamped (3LNPC) four-leg inverter equipped with an innovative control strategy able to improve the power quality in renewable energy based weak grids is investigated. The 3LNPC four-leg inverter is controlled to manage a Hybrid Energy Storage System in order to satisfy the energy/power demand in a weak grid and simultaneously to balance the AC voltage during unbalanced 3-phase loads. The proposed control strategy uses a special designed offset for the DC power/energy division and the decomposition of the supply three-phase voltage and current into symmetrical components using phasor representation for voltage balance. Real time simulations and experimental tests have been performed using a RT-LAB simulator, a 3LNPC converter prototype and an experimental MicroGrid in order to prove the effectiveness of the proposed system in a weak grid context.
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Dates et versions

hal-01251227 , version 1 (05-01-2016)

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Citer

Ionel Vechiu, Aitor Etxeberria, Quentin Tabart. Power quality improvement using an advanced control of a four-leg multilevel converter. Control and Modeling for Power Electronics (COMPEL), 2015 IEEE 16th Workshop on, Jul 2015, Vancouver, Canada. pp.1-6, ⟨10.1109/COMPEL.2015.7236486⟩. ⟨hal-01251227⟩
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