This paper proposes a new family of high frequency isolated Z-source dc-dc converters (ZSDCs) intended for distributed power generation systems. The proposed converters employs high frequency isolation between the load and the source and provides a wide range of buck and boost functions with improved reliability and good efficiency. The proposed converters can increase the output voltage by either adjusting the duty cycle, turns ratio of the coupled inductors (n), or by changing the high frequency transformer turn ratio (m) giving more flexibility in modifying the gain. It is expected that the benefits of proposed converters makes them a practical candidate for distributed power generation systems that can convert a varying low dc-input voltage into required stabilized output voltage with essential galvanic isolation. In this paper, several isolated ZSDC are presented, and an example isolated improved G-ZSDC is shown and discussed in detail with theoretical analysis followed up by verifications through simulations.
|Title of host publication||ECCE 2020 - IEEE Energy Conversion Congress and Exposition|
|Publisher||Institute of Electrical and Electronics Engineers Inc.|
|Number of pages||6|
|Publication status||Published - 2020 Oct 11|
|Event||12th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2020 - Virtual, Detroit, United States|
Duration: 2020 Oct 11 → 2020 Oct 15
|Name||ECCE 2020 - IEEE Energy Conversion Congress and Exposition|
|Conference||12th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2020|
|Period||20/10/11 → 20/10/15|
Bibliographical noteFunding Information:
National Research Foundation of Korea (NRF) grant funded by the Ministry of Science and ICT (MIST), Korea government (No. 2020R1A3B2079407).
© 2020 IEEE.
All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering
- Mechanical Engineering
- Control and Optimization
- Energy Engineering and Power Technology