شماره ركورد كنفرانس :
5060
عنوان مقاله :
Voltage Boosting Technique for Switched Capacitor Based Cascaded H-Bridge Multilevel Inverter
Author/Authors :
Tala ، Hemmati Faculty of Electrical and Computer Engineering - University of Tabriz، Tabriz, Iran , Mehran ، Sabahi Faculty of Electrical and Computer Engineering - University of Tabriz، Tabriz, Iran , Hossein ، Khoun Jahan Faculty of Electrical and Computer Engineering - University of Tabriz، Tabriz, Iran , Mehdi , Abapour Faculty of Electrical and Computer Engineering - University of Tabriz، Tabriz, Iran , Yaghoub ، Ghorbanalizadeh Maralani zarbaijan Regional Electric Company، Tabriz, Iran , Frede، Blaabjerg Department of Energy Technology - Aalborg University Aalborg, Denmark
كليدواژه :
Switched-Capacitor cell , Multilevel Inverter , Voltage boosting technique
عنوان كنفرانس :
11th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)
چكيده فارسي :
فاقد چكيده فارسي
چكيده لاتين :
Cascaded Multilevel Inverter (CMI) in photovoltaic (PV) systems calls for separated PV modules in each H-bridge cell. In turn, each PV module requires a dc-dc converter to facilitate the MPPT process. Thus, the CMI in PV systems requires a complicated control system to control the isolated dc sources. Since the switched capacitor-based CMI (SC-CMI) requires only one dc source, it can be a suitable inverter for PV systems. In this inverter the capacitors are charged through the dc source and a charging circuit. However, the main problem in this inverter is voltage reduction under heavy loads. To tackle the issue, this paper proposes a voltage boosting technique for the SC-CMI with PV systems, which considerably increases the voltage gain. In the proposed system, the capacitors are all charged through one dc source, so only one controlling mechanism is needed to control the dc link. Simulation and experimental results are provided to prove the effectiveness of the proposed circuit.
