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Abstract
This paper presents an eigenvalue-based harmonic stability analysis method for inverter-fed power systems. A full-order small-signal model for a droop-controlled Distributed Generation (DG) inverter is built first, including the time delay of digital control system, inner current and voltage control loops, and outer droop-based power control loop. Based on the inverter model, an overall small-signal model of a two-inverter-fed system is then established, and the eigenvalue-based stability analysis is subsequently performed to assess the influence of controller parameters on the harmonic resonance and instability in the power system. Eigenvalues associated with time delay of inverter and inner controller parameters is obtained, which shows the time delay has an important effect on harmonic instability of inverter-fed power systems. Simulation results are given for validating the proposed harmonic stability analysis method.
Original language | English |
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Title of host publication | Proceedings of the 41th Annual Conference of IEEE Industrial Electronics Society, IECON 2015 |
Publisher | IEEE Press |
Publication date | Nov 2015 |
Pages | 3277-3282 |
DOIs | |
Publication status | Published - Nov 2015 |
Event | 41th Annual Conference of IEEE Industrial Electronics Society, IECON 2015 - Yokohama, Japan Duration: 9 Nov 2015 → 12 Nov 2015 Conference number: 35501XP |
Conference
Conference | 41th Annual Conference of IEEE Industrial Electronics Society, IECON 2015 |
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Number | 35501XP |
Country/Territory | Japan |
City | Yokohama |
Period | 09/11/2015 → 12/11/2015 |
Keywords
- Harmonic Stability
- Eigenvalue
- Time Delay
- Small Signal Model
- Inverter-Interfaced Power System
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Dive into the research topics of 'Eigenvalue-based harmonic stability analysis method in inverter-fed power systems'. Together they form a unique fingerprint.Projects
- 1 Finished
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HARMONY: HARMONY - Harmonic identification, mitigation and control in power electronics based power systems
Blaabjerg, F., Bak, C. L., Wang, X., Beres, R. N., Kwon, J., Gui, Y., Yoon, C. & Ebrahimzadeh, E.
01/02/2013 → 28/02/2018
Project: Research