Journal
IEEE TRANSACTIONS ON POWER ELECTRONICS
Volume 33, Issue 11, Pages 9116-9121Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TPEL.2018.2820814
Keywords
Coupled inductor; impedance-source inverter; leakage inductance; voltage spikes; Y-source inverter (YSI)
Categories
Funding
- National Key R&D Program of China [2016YFE0102800]
- Lite-On Power Electronics Technology Research Fund [PRC20151382]
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By using coupled inductors, impedance-source inverters can greatly increase their voltage step-up abilities at the expense of high voltage spikes at their dc-links due to leakage inductances. These voltage spikes can then cause damages and greater power losses. Therefore, to better clamp their dc-link voltages, various absorbing circuits have been proposed in this letter for forming a unique family of impedance-source inverters with even higher gains. The abilities of these inverters in clamping their dc-link voltages have been verified by experimental results presented at the end of the letter.
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