Warianty tytułu
Zastosowanie zachowawczej teorii mocy do współzależnego sterowania kompensatorów rozproszonych w sieciach inteligentnych
Języki publikacji
Abstrakty
Smart grids are characterized by the availability of distributed energy resources (DER), including power switching interfaces (PSI) to connect to the grid. This creates a new scenario for the management of power grids, because DER increase the power capability and flexibility of the network at the expense of a higher complexity of control. If properly driven, however, PSI can improve power quality and distribution efficiency. On the contrary, every control misbehavior can cause voltage instability and/or circulation of useless currents, with the risk to affect network operation. Moreover, especially in case of islanded operation, smart grids can suffer from voltage distortion, asymmetry, and frequency variations, which may affect control accuracy and stability. In such a context, a cooperative control approach of PSI and any other electronic power processors (EPP) acting in the grid is needed, to ensure proper network operation even under severely disturbed conditions. This paper shows that the Conservative Power Theory (CPT) provides a viable background for the development of an optimum control technique of distributed EPP.
Inteligentne sieci elektroenergetyczne charakteryzują się dostępnością rozproszonych źródeł energii (DER) wraz z urządzeniami pośredniczącymi (PSI) łączącymi je do sieci energetycznej. Tworzy to nowe warunki zarządzania siecią energetyczną, gdyż DER powiększa moc i elastyczność systemu, jednak kosztem wzrostu złożoności jego sterowania. Prawidłowo sterowany PSI może jednak poprawić jakość energii i sprawność jej dystrybucji. W przeciwnym przypadku, niewłaściwie sterowanie PSI może spowodować niestabilność napięcia i/lub przepływy bezużytecznych prądów, wraz z ryzykiem wpływu na pracę sieci. Ponadto w sieci inteligentnej, szczególnie w warunkach pracy izolowanej, może pojawić się odkształcenie napięcia, asymetria oraz wahania częstotliwości, co może oddziaływać na dokładność sterowania i stabilność systemu. Aby zagwarantować właściwą pracę sieci, nawet w mocno zaburzonych warunkach, potrzebne jest współzależne sterowanie PSI i innych procesorów mocy (EPP). Niniejszy artykuł pokazuje, że Zachowawcza Teoria Mocy (CPT) tworzy realną podstawę do rozwoju optymalnej techniki sterowania rozproszonych EPP.
Słowa kluczowe
Czasopismo
Rocznik
Tom
Strony
1-7
Opis fizyczny
Bibliogr. 19 poz.,rys.
Twórcy
autor
autor
autor
- School of Electrical and Computer Engineering, Department of Electrical Energy Systems, University of Campinas, Unicamp/FEEC/DSEE, Av. Albert Einstein, 400, 13083-852 Campinas, SP Brazil,, hmorales@dsee.fee.unicamp.br
Bibliografia
- [1] Jintakosonwit P., Fujita H., Akagi H., Ogasawara S., "Implementation and Performance of Cooperative Control of Shunt Active Filters for Harmonic Damping Throughout a Power Distribution System" IEEE Trans on Industry Applications., 39(2003), No.2, pp. 556-563.
- [2] Cheng P.T., Lee T. L, "Distributed active filter systems (DAFS): A new approach to power systems harmonics", IEEE Trans. Ind. Applicat, 42(2006), No. 5, pp. 1301-1309.
- [3] Tedeschi E., Tenti P., Mattavelli P., Trombetti D., "Cooperative control of electronic power processors in micro-grid", Brasilian Transactions on Power Electronics, 14(2008), No. 4., pp. 241-249.
- [4] Czarnecki L.S., "Reactive and unbalanced currents compensation in three-phase asymmetrical circuits under non-sinusoidal conditions" IEEE Trans, on Instrumentation and Measurements, 38(1989), pp. No3., 754-759.
- [5] Czarnecki L.S., "Power factor improvement of three-phase unbalanced loads with nonsinusoidal supply voltages", European Trans, on Electrical Power Engineering (ETEP), 3(1993), No. 1, pp. 67-72.
- [6] Tenti P., Trombetti D., Tedeschi E., Mattavelli P., "Compensation of load unbalance, reactive power and harmonic distortion by cooperative operation of distributed compensators", European Conference on Power Electronics and Drives, Barcelona, 2009.
- [7] Akagi H., "Control strategy and site selection of a shunt active filter for damping of harmonic propagation in power distribution systems." IEEE Trans. Power Delivery, 12(1997), pp. 354-363.
- [8] Tenti P., Mattavelli P., Morales P H. K, "Conservative Power Theory, Sequence Components and Accountability in Smart Grids" Przegląd Elektrotechniczny, 6(2010), pp. 30-37.
- [9] Gyugyi L, Otto R.A., Putman T.H., "Principles and applications of static, thyristor-controlled, shunt compensators", IEEE Transactions on Power Apparatus and Systems, 97(1978), No. 5 pp. 1935-1945.
- [10] Tenti P., Willems J.L., Mattavelli P., Tedeschi, E., "Generalized Symmetrical Components for Periodic Non-Sinusoidal Three-Phase Signals", Seventh International Workshop on Power Definition and Measurements under Nonsinusoidal Conditions, Cagliari (Italy), July 2006.
- [11] Mattavelli P., "A closed-loop selective harmonic compensation for active filters", IEEE Trans. Industry Applications, 37(2001), No. 1, pp. 81-89.
- [12] Page C.H., "Reactive Power in Non-Sinusoidal Situations", IEEE Trans, of Instrumentation and Measurement, 29(1990), No.4, pp. 420-423.
- [13] Czarnecki, L.S., "Scattered and reactive current, voltage, and Power In Circuits with nonsinusoidal waveforms and their compensation". IEEE Trans, on Instrumentation and Measurements, 40(1991), No.3, pp. 563-567.
- [14] Czarnecki, L.S., "Minimization of Reactive Power under Nonsinusoidal Conditions", IEEE Trans, on Instrumentation and Measurements, 36(1987), No.1, pp. 18-22.
- [15] Merhej S.J., Nichols W.H., "Harmonic Filtering for the Offshore Industry", IEEE Trans, on Industry Applications, 30(1994), No. 3, pp. 533-542.
- [16] Akagi H., Kanazawa Y., Nabae A., "Instantaneous reactive power compensators comprising switching devices without energy storage components", IEEE Trans. Ind. Appl., 20(1984), No. 3, pp. 625-630.
- [17] Akagi H., Nabae A., "Control Strategy of Active Power Filters Using Multiple Voltage Source PWM Converters", IEEE Trans, on Ind. App., 22(1986), No. 3, pp.460-465.
- [18] Depenbrock M., Marshall D.A., Van J.D. Wyk: "Formulating Requirements for a Universally Applicable Power Theory as Control Algorithm in Power Compensators", European Trans, on Electrical Power Engineering (ETEP), 4(1994), No. 6, pp. 445-455.
- [19] Willems J.L., "Mathematical foundations of the instantaneous power concept: a geometrical approach", European Trans, on Electrical Power, ETEP, 6(1996), No. 5, pp. 299-304.
Typ dokumentu
Bibliografia
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bwmeta1.element.baztech-article-BPW8-0016-0034