Development of an RTU for synchrophasors estimation in active distribution networks
The centralized control of active distribution networks with large penetration of dispersed resources requires algorithms capable of providing network state estimation. Within this context, the measurement of bus voltage synchrophasors provides useful data that increase the observability of the network. The peculiar characteristics of distribution networks, such as feeder impedances, power flows and harmonic distortion, are different from those of transmission networks. Therefore, in order to obtain reasonably low uncertainty levels, Remote Terminal Units (RTU) with specific characteristics need to be developed. The paper presents an algorithm developed for the synchrophasor measurement in active distribution networks together with its implementation into a specific hardware based on a real-time microcontroller. The paper also presents the experimental characterization of the developed RTU by making reference to both single-tone and distorted signals. © 2009 IEEE.
2-s2.0-74949115279
2009
2009 IEEE Bucharest PowerTech: Innovative Ideas Toward the Electrical Grid of the Future
University of Bologna, Italy Power Systems Group, Italy, Conference code: 78575, Export Date: 25 April 2012, Source: Scopus, Art. No.: 5281925, doi: 10.1109/PTC.2009.5281925, Language of Original Document: English, Correspondence Address: Paolone, M.; University of BolognaItaly; email: mario.paolone@unibo.it, References: Choi, J.H., Kim, J.C., Advanced voltage regulation method of power distribution systems interconnected with dispersed storage and generation systems (2001) IEEE Trans. on Power Delivery, 16 (2), pp. 329-334. , April; Lasseter, R., Akhil, A., Marnay, C., Stevens, J., Dagle, J., Guttromson, R., Meliopoulous, A.S., Eto, J., (2002) White Paper on Integration of Distributed Energy Resources-the MicroGrid Concept, , http://certs.lbl.gov/pdf/50829-app.pdf, Available at; Repo, S., Laaksonen, H., Järventausta, P., Huhtala, O., Mickelsson, M., A case study of voltage rise problem due to a large amount of distributed generation on a weak distribution network (2003) Proc. of. 2003 IEEE Bologna PowerTech Conference, , Bologna, Italy, June 23-26; Hatziargyriou, N.D., Dimeas, A., Tsikalakis, A.G., Lopes, J.A.P., Kariniotakis, G., Oyarzabal, J., Management of microgrids in market environment (2005) Proc. of 2005 International Conference on Future Power Systems, , 16-18 Nov; Dimeas, A.L., Hatziargyriou, N.D., Operation of a multiagent system for microgrid control (2005) IEEE Trans. on Power Systems, 20 (3), pp. 1447-1455. , August; Costa, A.S., Santos, M.C.D., Real-time monitoring of distributed generation based on state estimation and hypothesis testing (2007) Proc. of the 2007 IEEE Lausanne Power Tech, pp. 538-543. , Lausanne, Switzerland, 1-5 July; Cheung, Hamlyn, A., Cheung, H., Mander, T., Lin, W., Cungang, Y.R., Network-enabled real-time monitoring of smart power distribution operating states (2007) Proc. of the IEEE Electrical Power Conference (EPC), pp. 417-422. , Canada, 25-26 Oct; (2005) IEEE Standard for Synchrophasors for Power Systems, , IEEE Std. C37.118; Donolo, M.A., Centeno, V.A., Accuracy limits for synchrophasor measurements and the IEEE standard (2008) IEEE Trans. on Power Delivery, pp. 504-505. , vol. 23-1, Jan; Radial distribution test feeders (1991) IEEE Trans. on Power Systems, 6 (3), pp. 975-985. , IEEE Distribution Planning Working Group, August; Voltage characteristics of electricity supplied by public distribution systems CENELEC, , EN 50160, ", ", Bruxelles, Belgium
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