Work in Progress: Output Impedance Specification of A Three-Phase Current-Source Inverter for Modular Photovoltaic Applications

Peng, Qilin; Migliazza, Giovanni; Buticchi, Giampaolo; Guenter, Sandro; Tan, Nadia M.L.; Yang, Jiajun; Wheeler, Patrick

Abstract

Impedance-based stability assessment has been an important part of renewable integration. Modeling and measurement of impedance under Synchronized Reference Frame (SRF) is a common way for a portrait of the frequency-dependent impedance. In this paper, a modified current-source inverter (CSI) called CSI7 for photovoltaic (PV) integration is studied. The SRF admittance of the system under different solar irradiation from 400W/m2 to 1000W/m2 with a resolution of 100W/m2 is measured in PLECS simulation. It is found that large frequency-dependent admittance appears under the high-frequency zone of the q axis which could lead to harmonic instability problems.

Citation

Peng, Q., Migliazza, G., Buticchi, G., Guenter, S., Tan, N. M., Yang, J., & Wheeler, P. (2023, April). Work in Progress: Output Impedance Specification of A Three-Phase Current-Source Inverter for Modular Photovoltaic Applications. Presented at 24th IEEE International Conference on Industrial Technology (ICIT), Orlando, FL, USA (and online)

• Presentation Conference Type: Edited Proceedings
• Conference Name: 24th IEEE International Conference on Industrial Technology (ICIT)
• Start Date: Apr 4, 2023
• End Date: Apr 6, 2023
• Acceptance Date: Apr 4, 2023
• Online Publication Date: Jun 9, 2023
• Publication Date: Apr 4, 2023
• Deposit Date: Jun 14, 2024
• Publisher: Institute of Electrical and Electronics Engineers
• Peer Reviewed: Peer Reviewed
• Pages: 211-214
• Book Title: 2023 IEEE International Conference on Industrial Technology (ICIT)
• ISBN: 979-8-3503-3651-1
• DOI: https://doi.org/10.1109/ICIT58465.2023.10143136
• Public URL: https://nottingham-repository.worktribe.com/output/35446992
• Publisher URL: https://ieeexplore.ieee.org/document/10143136