Affiliation:
1. "Romanian Research and Development Institute for Gas Turbines COMOTI University Politehnica of Bucharest, Doctoral School of Eledtical Engineering"
2. Romanian Research and Development Institute for Gas Turbines COMOTI
3. "Romanian Research and Development Institute for Gas Turbines COMOTI University Politehnica of Bucharest"
Abstract
The paper presents the functioning regimes of a 132 kW asynchronous three-phase machine, used for the expander-generator system in a compressed air energy storage facility. The installation consists of a 110 kW twin-screw electro-compressor, which supplies pressurized air up to ~16 bar into a 50 cubic meters storage vessel. The compressed air is afterwards released from the reservoir into expander’s inlet, spinning its shaft. When the expander’s shaft spins the electric machine over its synchronous speed, this one enters in generator mode, supplying electric power into the grid. Two power analysers installed on the automation control cabinet monitor the generated/absorbed power and the power supplied/consumed by the system from the grid. Using the data acquired by means of PLC during commissioning tests, we plotted the power curves, differential pressure and significant temperatures, as well as the electric machine’s speed.
Publisher
Universitatea Politechnica din Bucuresti
Reference15 articles.
1. "[1] R. Kumawat, S. Chourasiya, S. Agrawal and D. Paliwalia, ""Self excited induction generator: A review"", International Advanced Research Journal in Science, Engineering and Technology (IARJSET), vol. 2, Special Issue 1, 2015. DOI: 10.17148/iarjset.
2. [2] Y. Zou, ""Induction Generator in Wind Power Systems"", Induction Motors - Applications, Control and Fault Diagnostics, 2015. DOI: 10.5772/60958.
3. [3] D. Borkowski, ""Voltage and frequency control of a stand-alone induction generator using sVPWM converter in a small reservoir hydropower plant"", Technical Transactions Electronical Engineering, Issue 3E-2016, 2016. DOI: 10.4467/2353737XCT.16.265.6064.
4. [4] R. Saket and L. Varshney, ""Self Excited Induction Generator and Municipal Waste Water Based Micro Hydro Power Generation System"", International Journal of Engineering and Technology, vol. 4, no. 3, pp. 282-287, 2012. DOI: 10.7763/ijet.2012.v4.366.
5. [5] J. Chapallaz, J. Dos Ghali, P. Eichenberger and G. Fischer, ""The Concept of Induction Motors Used as Generators"", Manual on Induction Motors Used as Generators, pp. 3-14, 1992. DOI: 10.1007/978-3-663-14044-3_2.