TY - GEN
T1 - A Novel Single-Phase Voltage Boosting Transformerless Inverter Topology for Grid-connected Solar PV Application
AU - Chamarthi, Phani Kumar
AU - Moursi, Mohamed Shawky El
AU - Khadkikar, Vinod
AU - Hosani, Khalifa Hassan Al
AU - Fouly, Tarek El
N1 - Funding Information:
This work is funded by the Advanced Power and Energy Centre (APEC) at Khalifa University. The authors want to thank APEC for supporting this valuable work.
Publisher Copyright:
© 2021 IEEE.
PY - 2021/1/21
Y1 - 2021/1/21
N2 - This paper proposes a new voltage boosting transformerless inverter (VBTI) topology for photovoltaic (PV) applications. The proposed VBTI topology is developed by integrating the coupled inductor based high voltage gain DC to DC converter and two-level inverter. Due to the presence of high voltage gain feature, the VBTI topology can pump power from a lower DC voltage PV source in to the grid/load without using higher duties. Another important feature of VBTI is that it completely eliminate /suppress leakage current due to a common connection is shared between the negative terminal of PV source and grid neutral. In addition to that, the VBTI topology comprises only six controllable power switches to control the inverter which increases the reliability and decreases the cost of the system. Further, a simple level-shifted modulation strategy is introduced to control the VBTI. The design of the various power components of the VBTI and its main operating modes are discussed in detail. Further, the maximum efficiency of the VBTI assessed to be \approx 95%. The proposed VBTI topology is verified through MATLAB simulations for a 400VA grid-connected system. All the main results are presented in this paper. The experimental work for the PV fed grid-connected VBTI topology is underway.
AB - This paper proposes a new voltage boosting transformerless inverter (VBTI) topology for photovoltaic (PV) applications. The proposed VBTI topology is developed by integrating the coupled inductor based high voltage gain DC to DC converter and two-level inverter. Due to the presence of high voltage gain feature, the VBTI topology can pump power from a lower DC voltage PV source in to the grid/load without using higher duties. Another important feature of VBTI is that it completely eliminate /suppress leakage current due to a common connection is shared between the negative terminal of PV source and grid neutral. In addition to that, the VBTI topology comprises only six controllable power switches to control the inverter which increases the reliability and decreases the cost of the system. Further, a simple level-shifted modulation strategy is introduced to control the VBTI. The design of the various power components of the VBTI and its main operating modes are discussed in detail. Further, the maximum efficiency of the VBTI assessed to be \approx 95%. The proposed VBTI topology is verified through MATLAB simulations for a 400VA grid-connected system. All the main results are presented in this paper. The experimental work for the PV fed grid-connected VBTI topology is underway.
UR - http://www.scopus.com/inward/record.url?scp=85103458766&partnerID=8YFLogxK
U2 - 10.1109/SeFet48154.2021.9375739
DO - 10.1109/SeFet48154.2021.9375739
M3 - Conference contribution
AN - SCOPUS:85103458766
T3 - 2021 International Conference on Sustainable Energy and Future Electric Transportation, SeFet 2021
BT - 2021 International Conference on Sustainable Energy and Future Electric Transportation, SeFet 2021
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2021 International Conference on Sustainable Energy and Future Electric Transportation, SeFet 2021
Y2 - 21 January 2021 through 23 January 2021
ER -
