TY - GEN
T1 - Switched-capacitor multilevel inverters for high frequency AC microgrids
AU - Raman, S. Raghu
AU - Ye, Yuanmao
AU - Cheng, K. W.Eric
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/5/17
Y1 - 2017/5/17
N2 - This paper proposes a novel topology of a switched-capacitor multilevel inverter for high frequency AC microgrids. It employs multiple DC sources which make it ideal to be employed in renewable energy sources based AC microgrids. With the proliferation in renewable energy based solar and wind farms, such multi-input topologies gain tremendous potential. Switched-capacitor based DC-DC converter in the front end produces multiple levels at the DC bus. Further, the H-bridge inverter obtains corresponding bipolar levels and a zero level at the output. The problem of capacitor voltage balancing is inherently solved as the capacitors are charged to the input voltage every cycle. Working principle and primary analysis of the topology are presented. Simulation outcomes are validated with experimental results at different distribution frequencies and power levels.
AB - This paper proposes a novel topology of a switched-capacitor multilevel inverter for high frequency AC microgrids. It employs multiple DC sources which make it ideal to be employed in renewable energy sources based AC microgrids. With the proliferation in renewable energy based solar and wind farms, such multi-input topologies gain tremendous potential. Switched-capacitor based DC-DC converter in the front end produces multiple levels at the DC bus. Further, the H-bridge inverter obtains corresponding bipolar levels and a zero level at the output. The problem of capacitor voltage balancing is inherently solved as the capacitors are charged to the input voltage every cycle. Working principle and primary analysis of the topology are presented. Simulation outcomes are validated with experimental results at different distribution frequencies and power levels.
UR - http://www.scopus.com/inward/record.url?scp=85020033097&partnerID=8YFLogxK
U2 - 10.1109/APEC.2017.7931058
DO - 10.1109/APEC.2017.7931058
M3 - Conference article published in proceeding or book
AN - SCOPUS:85020033097
T3 - Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
SP - 2559
EP - 2564
BT - 2017 IEEE Applied Power Electronics Conference and Exposition, APEC 2017
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 32nd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2017
Y2 - 26 March 2017 through 30 March 2017
ER -