Contents
This paper describes the implementation of a new control approach for the Unified Poer Flow Controller (UPFC), which provides active filtering capabilities to this equipment, besides the functions of power flow control and voltage control, as originally proposed by L. Gyugyi [1,2]. The power circuit is made up from two PWM converters which share a common dc link without the need of dc power supplies. An integrated controller attends to both series and shunt converters of the UPFC. It is based on the theory of instantaneous active and reactive power defined in the α-β-0 reference frame [3,4]. A complete model of the new UPFC has been implemented in a digital simulator. Simulation results have confirmed that the new approach has higher performance than those UPFCs which use traditional definitions of powers in the controller.
Similar content being viewed by others
References
Gyugyi, L.: Unified Power Flow Control Concept for Flexible AC Transmission Systems. IEE Proc. C 139 (1992) 323–331
Gyugyi, L.;Schauder, C. D.;Williams, S. L.;Rietman, T. R.;Torgerson, D. R.;Edris, A.: The Unified Power Flow Controller: A New Approach to Power Transmission Control. IEEE Trans. Power Delivery 10 (1995) 1085–1093
Akagi, H.;Kanazawa, Y.;Nabae, A.: Instantaneous Reactive Power Compensator Comprising Switching Devices Without Energy Storage Components. IEEE Trans. Ind. Appl. 20 (1984) 625–630
Aredes, M.;Watanabe, E. H.: New Control Algorithm for Series and Shunt Three-Phase Four-Wire Active Power Filters. IEEE Trans. Power Delivery 10 (1995) 1649–1656
Ooi, B. T.;Dai, S. Z.;Galiana, F. D.: A Solid-State PWM Phase-Shifter. IEEE Trans. Power Delivery 8 (1993) 573–579
Yu, Q.;Round, S. D.;Norum, L. E.;Undeland, T. M.: A New Control Strategy for a Unified Power Flow Controler. Eur. Conf. Power Elect., Sevilla, Spain 2 (1995) 2901–2906
Aredes, M.; Häfner, J.; Heumann, K.: A Combined Series and Shunt Active Power Filter. IEEE/KTH Power Tech. Conf., Stockholm, Sweden (1995) 237–242
Aredes, M.;Häfner, J.;Heumann, K.: A Three-Phase Four-Wire Shunt Active Filter Using Six IGBTs. Eur. Conf. Power Elect., Sevilla, Spain 1 (1995) 1874–1879
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Aredes, M., Heumann, K. An advanced unified power flow controller. Electrical Engineering 79, 303–310 (1996). https://doi.org/10.1007/BF01245883
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF01245883