Control strategy for maximizing conversion efficiency of a small hydropower plant

Dariusz Borkowski

Abstrakt

An analysis of the energy conversion system which consists of a propeller water turbine, a permanent magnet synchronous generator and a power electronic converter is presented. The considered control strategy implements an optimizing technique that guarantees maximal average efficiency independently of hydrological condition changes through the constant search for optimal operation parameters. The water flow parameter, essential for objective function estimation, is eliminated by the dedicated control technique. The control method is implemented and tested in the model created in the Matlab/Simulink software. All characteristics and parameters were identified on a real small hydropower plant and on the special laboratory model.

Słowa kluczowe: small hydropower plant, variable speed operation, optimizing algorithm
References

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[2] Report from the commission to the european parliament, the Council, the european economic and social committee and the Committee of the regions, Brussels, 27.03.2013, Available: http://eurlex.europa.eu/LexUriServ/LexUriServ.do?uri=COM:2013:0175:FI N:EN:PDF.

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[6] Borkowski D., Węgiel T., Small Hydropower Plant with Integrated Turbine-Generators Working at Variable Speed, IEEE Transactions on Energy Conversion, Vol. 28, No. 2, June 2013, pp. 452–459.

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[8] Borkowski D., Laboratory model of small hydropower plant with variable speed operation, Zeszyty Problemowe – Maszyny Elektryczne, 2013, nr 3/(100), pp. 27–32.

[9] Borkowski D., Węgiel T., Optymalizacja przetwarzania energii dla małych elektrowni wodnych z generatorami pracującymi ze zmienną prędkością obrotową, Zeszyty Problemowe – Maszyny Elektryczne, 2011, nr 92, pp. 121–126.