Conference article

Study of Transient Stability for Parallel Connected Inverters in Microgrid System Works in Stand-Alone

F. Andrade
Universitat Politåcnica de Catalunya, Barcelona, Spain

J. Cusido
Universitat Politåcnica de Catalunya, Barcelona, Spain

L. Romeral
CTM Centre Tecnològic, Manresa, Spain

J. J. Cárdenas
Universitat Politåcnica de Catalunya, Barcelona, Spain

Download articlehttp://dx.doi.org/10.3384/ecp110574185

Published in: World Renewable Energy Congress - Sweden; 8-13 May; 2011; Linköping; Sweden

Linköping Electronic Conference Proceedings 57:18, p. 4185-4192

Show more +

Published: 2011-11-03

ISBN: 978-91-7393-070-3

ISSN: 1650-3686 (print), 1650-3740 (online)

Abstract

Distributed generators systems and Microgrid are becoming more important to increase the renewable energy penetration in the public utility. This paper presents a mathematical model for connected inverters in Microgrid systems with large range variations in operating conditions. No-lineal tools and computer simulations; phase-plane trajectory analysis; method of Lyapunov and bifurcations analysis for evaluate the limits of the small signal models are used; and conclusion suggested utilizing models that can permit to analysis of the system when subjected to a severe transient disturbance such as loss a large load or loss of generation. The study of transient stability for Microgrid systems in stand-alone of the utility grid is useful to improve the design of Microgrid’:s architecture.

Keywords

Microgrid model; Transient Stability; Parallel Inverters; Method of Lyapunov

References

[1] A. G. Madureira; Coordinated voltage support in distribution networks with distributed generation and microgrids; IET Renewable Power Generation; 2009; pp. 439 – 454.

[2] P. N. Vovos; Centralized and Distributed Voltage Control: Impact on Distributed Generation Penetration; IEEE Transactions on Power Systems; 2007; pp. 476 – 483. doi: 10.1109/TPWRS.2006.888982.

[3] C. L. Chen; State-space modeling; analysis; and implementation of paralleled inverters for microgrid applications; Applied Power Electronics Conference and Exposition (APEC); 2010; pp. 619 – 626.

[4] A. Arulampalam; Control of power electronic interfaces in distributed generation microgrids; International Journal of Electronics; 2004; pp. 503 – 523. doi: 10.1080/00207210412331289023.

[5] N. Pogaku; Modeling; Analysis and Testing of Autonomous Operation of an Inverter-Based Microgrid; IEEE Transactions on Power Electronics; 2007; pp. 613 – 625. doi: 10.1109/TPEL.2006.890003.

[6] N. L. Soultanis; A Stability Algorithm for the Dynamic Analysis of Inverter Dominated Unbalanced LV Microgrids; IEEE Transactions on Power Systems; 2007; pp. 294 – 304. doi: 10.1109/TPWRS.2006.887961.

[7] J. Guerrero; A wireless controller to enhance dynamic performance of parallel inverters in distributed generation system; IEEE Transactions on Power Electronics; 2004. doi: 10.1109/TPEL.2004.833451.

[8] P. Duminda; Stability Analysis of Microgrids with Constant Power Loads; Sustainable ICSET 2008. IEEE International Conference on Energy Technologies; 2008.

[9] E.A.A. Coelho; Small-Signal Stability for Parallel-Connected Inverters in Stand-Alone AC Supply Systems; IEEE Transactions on Industry Applications; 2002; pp. 533 – 542. doi: 10.1109/28.993176.

[10] A. Bacciotti; Liapunov Function and Stability in Control Theory; Springer; 2nd edition; 2005; pp. 27 – 80.

[11] H. Khalil; Nonlinear Systems. Prentice Hall; 2nd edition; 1996.

Citations in Crossref