Abstract
The classic design of grid-forming control strategies for power converters rely on the stringent assumption of the timescale separation between DC and AC states and their corresponding control loops, e.g., AC and DC loops, power and cascaded voltage and current loops, etc. This paper proposes a multi-input multi-output based grid-forming (MIMO-GFM) control for the power converters using a multivariable feedback structure. First, the MIMO-GFM control couples the AC and DC loops by a general multivariable control transfer matrix. Then, the parameters design is transformed into a standard fixed-structure H∞ synthesis. By this way, all the loops can be tuned simultaneously and optimally without relying on the assumptions of loop decoupling. Therefore, a superior and robust performance can be achieved. Experimental results verify the proposed method.
Original language | English |
---|---|
Title of host publication | Proceedings of the 2022 International Power Electronics Conference (IPEC-Himeji 2022- ECCE Asia) |
Number of pages | 7 |
Place of Publication | Himeji, Japan |
Publisher | IEEE |
Publication date | May 2022 |
Pages | 998-1004 |
Article number | 9807103 |
ISBN (Print) | 978-1-6654-1631-3 |
ISBN (Electronic) | 978-4-8868-6425-3 |
DOIs | |
Publication status | Published - May 2022 |
Event | 2022 International Power Electronics Conference (IPEC-Himeji 2022- ECCE Asia) - Himeji, Japan Duration: 15 May 2022 → 19 May 2022 |
Conference
Conference | 2022 International Power Electronics Conference (IPEC-Himeji 2022- ECCE Asia) |
---|---|
Location | Himeji, Japan |
Period | 15/05/2022 → 19/05/2022 |
Keywords
- cascaded controllers
- fixted-structure mathcal{H}-{infty} synthesis
- loops coupling
- multi-input multi-output based grid-forming (MIMO-GFM) control