Stability analysis of medium sized power plants subjected to grid events

Year 2020, , 491 - 498, 15.06.2020

Levent Kılıç , Ayşen Basa Arsoy

https://doi.org/10.24012/dumf.538534

Abstract

Connection of small generating
units in the medium voltage distribution system is increasing substantially.
Such units, called distributed generation, can have a significant impact on,
load flow, shortcircuit, voltage, frequency, power quality, stability,
islanding and synchronized running, protection and reliability. In this study,
the stability impact of a private sector power plant in Thrace region having
synchronous generators driven by gas engine and gas turbine has been
investigated in terms of fault ride through capability. Critical clearing time
has been determined, once the criteria of fault ride through capability were
explored. Grid operators do limit penetration levels of such plants and can
also disconnect available units when grid fails. Stability is affected by
voltage dip much worsely than penetration levels. It has been seen that the
disconnection of power plants is not necessary, when the voltage dip restricted
to 0,5 pu. Also that the stability is positively affected when the power factor
is decreased to 0,8 from 1,0. The results also show that even 100% penetrated
synchronous generator based power plants in distribution system do not affect
stability badly in steady state operation.

Keywords

Stability analysis, power plants, distribution grid, gas engine, gas turbine, grid events

References

• [1] Schavemaker P.H., Van der Sluis L. (2008). Electrical Power System Essentials, Wiley&Sons, Chichester, United Kingdom.
• [2] Reza M. (2006), Stability analysis of transmission systems with high penetration of distributed generation. Ph.D. Thesis, Technische universiteit Delft.
• [3] Ackermann T., Knyazkin V. (2002). Interaction between distributed generation and the distribution grid: Operation aspects, IEEE Transmission and distribution conference and exhibition Asia Pacific, Yokohama.
• [4] Ishchenko A., Myrzik J.M.A., Kling W.L. (2007). Dynamic equivalencing of distribution grids with dispersed generation using hankel norm approximation, IET Proceedings on Generation, Transmission and Distribution, 1(5), 818-825.
• [5] Nuroglu F. M., Arsoy A. B. (2008). Voltage Profile and Short Circuit Analysis in Distribution Systems with DG, Electric Power and Energy Conference, Canada.
• [6] Thong V. V., Vermeyen P., Driesen J., Belmans R. (2005). Grid Connection Aspects of Distributed Generation, International Energy Journal, 6(1), 148-161.
• [7] Walling R.A. (Reigh), Saint R., Dugan R. C., Burke J., Kojovic L. (2008). A. Summary of Distributed Resources Impact on Power Delivery Systems, IEEE Transactions on Power Delivery, 23(3), 1636-1644.
• [8] Xyngi I., Ishchenko A., Popov M., Sluis L. V. D. (2009). Transient Stability Analysis of a Distribution Grid With Distributed Generation, IEEE Transactions on Power Systems, 24(2), 1102-1104.
• [9] Sun X., Chen D., Gao M., Liu D., Zhu T. (2011). Generator Parameters’ Impact on Power System Stability and Their Engineering Testing Methods, Electrical Power Systems and Computers, 99, 259-276.
• [10] IEEE 1547, (2003). IEEE Standard for interconnecting distributed resources with electrical power systems, The Institute of Electrical and Electronics Engineers, New York.
• [11] Mozina C. J. (2006). Distributed generator interconnect pretection practices, IEEE Power Engineering Society Power System Conference and Exposition, Dallas.
• [12] Driesen J., Belmans R. (2006). Distributed generation: Challenges and possible solutions, IEEE Power Engineering Society General Meeting, Montreal.
• [13] DigSilent Power Factory Manual, (2007). Version 13.2, Germany.
• [14] IEEE Committee report, (1982). Proposed terms and definitions for power system stability, in IEEE transactions PAS, 1894-1898.
• [15] Venikov V., (1980). Transient Processes in Electrical Power Systems, Mir, Moscow.
• [16] Peterson H. A., (1951). Transients in Power Systems, John Wiley & Sons, New York.
• [17] Greenwood A., (1991). Electrical Transients in Power Systems, John Wiley & Sons, New York.
• [18] Pavella M., Murthy P. G., (1994). Transient Stability of Power Systems, John Wiley & Sons, West Sussex, 1994.
• [19] Grainger J. J., Stevenson W.D. (1994). Power System Analysis, McGraw-Hill.
• [20] Kılıç L. (2015). Determination of transient stability criteria for private sector power plant located at Thrace region, PhD Thesis, Kocaeli University.