Abstract
This paper addresses a state-space-based harmonic stability analysis of paralleled grid-connected inverters system. A small signal model of individual inverter is developed, where LCL filter, the equivalent delay of control system, and current controller are modeled. Then, the overall small signal model of paralleled grid-connected inverters is built. Finally, the state space-based stability analysis approach is developed to explain the harmonic resonance phenomenon. The eigenvalue traces associated with time delay and coupled grid impedance are obtained, which accounts for how the unstable inverter produces the harmonic resonance and leads to the instability of whole paralleled system. The proposed approach reveals the contributions of the grid impedance as well as the coupled effect on other grid-connected inverters under different grid conditions. Simulation and experimental results are provided to verify the proposed harmonic stability assessment method.
| Originalsprog | Engelsk |
|---|---|
| Titel | Proceeding of the 42nd Annual Conference of the IEEE Industrial Electronics Society, IECON 2016 |
| Antal sider | 6 |
| Forlag | IEEE Press |
| Publikationsdato | okt. 2016 |
| Sider | 7040 - 7045 |
| ISBN (Elektronisk) | 978-1-5090-3474-1 |
| DOI | |
| Status | Udgivet - okt. 2016 |
| Begivenhed | 42nd Conference of the Industrial Electronics Society, IECON 2016: 42nd Annual Conference of the IEEE Industrial Electronics Society - Palazzo dei Congressi, Florence, Italien Varighed: 24 okt. 2016 → 27 okt. 2016 http://www.iecon2016.org/?jjj=1471434927195 http://www.iecon2016.org/ |
Konference
| Konference | 42nd Conference of the Industrial Electronics Society, IECON 2016 |
|---|---|
| Lokation | Palazzo dei Congressi |
| Land/Område | Italien |
| By | Florence |
| Periode | 24/10/2016 → 27/10/2016 |
| Sponsor | IEEE Industrial Electronics Society (IES), Institute of Electrical and Electronics Engineers (IEEE) |
| Internetadresse |