What is it about?

The soft-switching in inverter is an important goal to realize. We have proposed a topology and strategy to make the switches in inverter are turned-on in ZVS. The characteristic of DAB can be utilized to produce a high frequency pulse DC link, thus switches in inverter can be thoroughly soft-switched.

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Why is it important?

With the rapid development of microgrids, isolated bidirectional DC–AC inverters are ubiquitous in lots of applications, including grid connected uninterruptible power supply (UPS), renewable power energy system, electric vehicles, and so on. With widely adopted in aforementioned applications, bidirectional inverter is necessary to be developed to realize higher flexibility and higher efficiency .

Perspectives

I hope this article make contribution in the realizing of soft-switching in DC-AC inverter. The DAB converter can be exchanged in some conditions, thus a series of topology also can be proposed. What's more, different topology could have different properties, which also can be further researched.

zhanfei song
Southeast University

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This page is a summary of: A Novel DC–AC Inverter Based on Phase-Shift Shoot-Through Controlled Dual-Active-Bridge and High Frequency Pulse DC Link, IET Power Electronics, September 2019, the Institution of Engineering and Technology (the IET), DOI: 10.1049/iet-pel.2019.0478.
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