Optimal Power Factor for the Reactive Load of Small Hydro Power Plants

A. Tsolov, B. Marinova

Abstract


This article explores the operation algorithm of an excitation regulator of synchronous generators of small Hydro Power Plants (HPPs). The aim is to provide optimum economic parameters, consistent with the dynamically changing requirements of electric supply companies. An integral method for maintaining the power factor has been introduced. The proposed method ensures stable operation of generators in different working modes. It is implemented and the economic effect proved significant.


Keywords


small HPP; power factor; reactive load; excitations; AVR

Full Text:

PDF

References


D. Tsoneva, A. Tsolov, A. Krumov, “Distribution of the reactive load in synchronous generators an electric power plant under different principles of regulation – mathematical model”, Proceedings of the Technical University - Sofia, Vol. 59, No. 1, pp. 151, 2009

T. Katagiri, H. Nakabayashi, Y. Nijo, T. Tamada, T. Noda, N. Hirano, T. Nagata, S. Nagaya, M. Yamane, Y. Ishii, T. Nitta, “Field Test Result of 10MVA/20MJ SMES for Load Fluctuation Compensation, IEEE Transactions on Applied Superconductivity,Vol. 19, No. 3, 2009

D. Dobrilov, A. Tsolov, Means for reactive power compensation - part 2, Proceedings of the Technical University of Sofia, Vol. 64, No. 3, 2014

D. Dobrilov, Means of reactive power compensation-part 1, Proceedings of the Technical University of Sofia, Vol. 64, No. 5, 2013

J. Bjornstedt, O. Samuelsson, “Voltage and Frequency Control for Island Operated Induction Generators”, CIRED Seminar: SmartGrids for Distribution, Frankfurt, Germany, June 23-24, 2008

I. Tamrakar, L. B. Shilpakar, B. G. Fernandes, R. Nilsen, “Voltage and frequency control of parallel operated synchronous generator and induction generator with STATCOM in micro hydro scheme”, IET Generation, Transmission & Distribution,Vol. 1, No. 5, pp. 743-750, 2007

D. Dobrilov, Control for small HPP in limited modes, PhD Thesis, 2015

International Electrotechnical Commission, IEC 60034: Rotating Electrical Machines Part 3: Specific Requirements for Turbine-Type Synchronous Machines, 1996

Mathworks, Help for Matlab SimPower System, 2013

P. Kundur, Power Systems Stability and Control, McGraw-Hill, 1994

R. Grondin, I. Kamwa, G. Trudel, L. Gerin-Lajoie, J. Taborda, “Modeling and closed-loop validation of a new PSS concept, the Multi-Band PSS”, IEEE Power Engineering Society General Meeting, Vol. 3, pp. 1809, 2003

H. Wu, G. T. Heydt, “Design of Delayed-Input Wide Area Power System Stabilizer Using the Gain Scheduling Method”, IEEE Power Engineering Society General Meeting, Toronto, Canada, Vol. 3, pp. 1709, July 13-17, 2003




eISSN: 1792-8036     pISSN: 2241-4487