Selective harmonics elimination PWM with self-balancing DC-link in   photovoltaic 7-level inverter

KHOUKHA IMARAZENE; HACHEMI CHEKIREB; EL MADJID BERKOUK

Makale detayları

Selective harmonics elimination PWM with self-balancing DC-link in photovoltaic 7-level inverter

Yazarlar:

KHOUKHA IMARAZENE | HACHEMI CHEKIREB | EL MADJID BERKOUK

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Electrical Engineering and Computer Science 2016 Vol.24 Issue 5, pp.3999-4014

Belge Tipi:

Makale

Yayın Tarihi:

9/2016

Belge Dili:

Türkçe

Document ID (Org No.):

2000741586

Sıklık:

İki Aylık

eISSN:

1303-6203

pISSN:

1300-0632

Özet:

 

In this paper, a new DC-link balancing method for a 7-level   inverter fed by a photovoltaic system is proposed. The proposed redundant   state technique is associated with selective harmonics elimination (SHE)-PWM   instead of space vector (SV)-PWM. The switching angles related to the SHE   are computed via the resultant theory method. Moreover, the study of this   inverter is carried out on its equivalent matrix model. On the basis of this   model, the link between the capacitor voltage, switching states, and load   current is established. This allows understanding the switching   redundancies' effect on the DC capacitor voltage balance. An algorithm is   then developed to select the appropriate switching state, since there are   300 switching states and 720 unbalanced cases of the voltage capacitor. The   proposed balancing method is tested in the case where the input DC inverter   is provided by a photovoltaic generator (PVG) system and feeding an   induction motor. The obtained results show that the 6 DC PVG capacitor   voltages are kept balanced while cancelling the most undesirable harmonics   row (5th, 7th, and 11th) in the inverter output voltage. Thus, using this   cascade, photovoltaic supplying DC power can be amplified into high quality   AC power.

Makale detayları

Selective harmonics elimination PWM with self-balancing DC-link in photovoltaic 7-level inverter

Yazarlar: KHOUKHA IMARAZENE | HACHEMI CHEKIREB | EL MADJID BERKOUK

Yayıncı: TUBITAK

Dergi: Turkish Journal of Electrical Engineering and Computer Science 2016 Vol.24 Issue 5, pp.3999-4014

Belge Tipi: Makale

Yayın Tarihi: 9/2016

Belge Dili: Türkçe

Document ID (Org No.): 2000741586

Sıklık: İki Aylık

eISSN: 1303-6203

pISSN: 1300-0632

Sayı

Yazarlar:

KHOUKHA IMARAZENE | HACHEMI CHEKIREB | EL MADJID BERKOUK

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Electrical Engineering and Computer Science 2016 Vol.24 Issue 5, pp.3999-4014

Belge Tipi:

Makale

Yayın Tarihi:

9/2016

Belge Dili:

Türkçe

Document ID (Org No.):

2000741586

Sıklık:

İki Aylık

eISSN:

1303-6203

pISSN:

1300-0632