Abstract
This paper proposes a new high gain soft switching dc-dc topology based on switched inductor boost converter (SIBC). SIBC itself as a high gain boost topology has the issue of high conduction loss in switching diodes and high switching loss in the main switches. Also, it has severe EMI issue due to the diode path between input and switching node. The new topology is derived aiming at zero voltage switching (ZVS) turn on of the main switch. The new topology can achieve soft switching for all the switches and alleviate EMI issue. All the diodes achieve a zero current switching (ZCS) turn off without reverse recovery. The soft-switching-SIBC (SSSIBC) also reduces the conduction loss in switching diodes. A numerical simulation in PLECS and a prototype hardware are built for dc-dc stage of a PV micro-inverter 30 V to 200 V 300 W application with 100 kHz switching frequency. A 94.76 % power conversion peak efficiency is achieved.
| Original language | English (US) |
|---|---|
| Title of host publication | 2017 IEEE Applied Power Electronics Conference and Exposition, APEC 2017 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 2199-2206 |
| Number of pages | 8 |
| ISBN (Electronic) | 9781509053667 |
| DOIs | |
| State | Published - May 17 2017 |
| Event | 32nd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2017 - Tampa, United States Duration: Mar 26 2017 → Mar 30 2017 |
Other
| Other | 32nd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2017 |
|---|---|
| Country/Territory | United States |
| City | Tampa |
| Period | 3/26/17 → 3/30/17 |
Keywords
- Active clamp
- High gain boost
- PV and micro-inverter
- SIBC
- SS-SIBC
- Switched inductor
- ZCS
- ZVS
- ZVT
ASJC Scopus subject areas
- Electrical and Electronic Engineering