| Title |
Predicting Stability Boundary of a Single-phase Grid-tied Inverter using Small-signal DQ-Frame Model |
| ID_Doc |
10983 |
| Authors |
Agrawal, R; McGrath, BP; Teixeira, CA; Wilkinson, RH |
| Title |
Predicting Stability Boundary of a Single-phase Grid-tied Inverter using Small-signal DQ-Frame Model |
| Year |
2023 |
| Published |
|
| DOI |
10.1109/AUPEC59354.2023.10502592 |
| Abstract |
Stability analysis of a grid-tied inverter is vital due to the non-linear nature of the synchronous reference frame phase-locked-loop (SRF-PLL) and its interaction with the other system dynamics present. The precise stability boundary prediction of a single-phase system is challenging due to the absence of orthogonal quantities. A single-phase system can be modeled in the DQ-frame by introducing fictitious orthogonal quantities. This paper aims to identify the stability boundary of a single-phase grid-tied inverter using the DQ-frame small-signal model and compares these stability predictions with the results obtained with a harmonic state-space model. The stability boundary of the system is predicted using Floquet theory applied to the small-signal model. The model has been validated using detailed switched simulations of a single-phase grid-tied inverter. |
| Author Keywords |
Single-phase grid-tied inverter; stability analysis; DQ-frame small-signal model; Floquet theory |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Conference Proceedings Citation Index - Science (CPCI-S) |
| EID |
WOS:001215070900012 |
| WoS Category |
Energy & Fuels; Engineering, Electrical & Electronic |
| Research Area |
Energy & Fuels; Engineering |
| PDF |
|