Publication: Work in Progress: Output Impedance Specification of A Three-Phase Current-Source Inverter for Modular Photovoltaic Applications
Date
2023
Authors
Peng Q.
Migliazza G.
Buticchi G.
Guenter S.
Tan N.M.L.
Yang J.
Wheeler P.
Journal Title
Journal ISSN
Volume Title
Publisher
Institute of Electrical and Electronics Engineers Inc.
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. � 2023 IEEE.
Description
Keywords
current-source converter , impedance , photovoltaic , stability analysis , Electric impedance , System stability , Current source converters , Current source inverter , Impedance , Modulars , Output impedance , Photovoltaic applications , Photovoltaics , Reference frame , Stability analyze , Three-phase currents , Electric inverters