Reduction of Losses and Harmonic Distortion in Distribution Networks with Different Load Models by Placing Shunt Capacitors using Integer Genetic Algorithm

• Autorzy: Vuletic J. , Todorovski M.

Warianty tytułu

PL

Redukcja strat I zakłóceń harmonicznych w systemie rozproszonym z modelowaniem zmiennego obciążenia z pojemnościami bocznikowymi za pomocą algorytmu genetycznego

• Języki publikacji: EN

Abstrakty

EN

The non-linear integer problem of capacitor placement in distorted distribution systems is solved with discrete values of capacitor sizes employing integer genetic algorithm with controlled random initialization. The objective function contains yearly system operation costs including cost of energy losses and capacitor prices. Different load models along with harmonic sources modelled as constant current sources are considered in the process of optimization. The results show the importance of load variation, modelling and harmonic sources on the optimal solution.

PL

W pracy rozwiązany został nieliniowy problem rozmieszczenia pojemności w zakłóconym systemie rozproszonym, wykorzystując genetyczny algorytm ze sterowaną randomiczną inicjalizacją. Funkcja celu zawiera roczny koszt systemu operacyjnego, włączając koszty straty energii i ceny kondensatorów. Modele różnych obciążeń ze źródłami harmonicznymi zamodelowanymi jako źródła prądu o stałej wartości zostały przeanalizowane w procesie optymalizacji. Wyniki pokazują ważność zmienności obciążenia, modelowania i źródeł harmonicznych dla optymalnego rozwiązania.

Słowa kluczowe

EN

loss reduction; harmonic distortion; genetic algorithm; capacitor

PL

redukcja strat; zakłócenia harmoniczne; algorytm genetyczny; algorytm

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2015
• Tom: R. 91, nr 6
• Strony: 84--87
• Opis fizyczny: Bibliogr. 14 poz., rys., tab.

Twórcy

autor

Vuletic J.

• Faculty of Electrical Engineering and Information Technologies, ul.Rugjer Boskovic bb, POBox 574, 1000 Skopje, Republic of Macedonia

autor

Todorovski M.

• Faculty of Electrical Engineering and Information Technologies, ul.Rugjer Boskovic bb, POBox 574, 1000 Skopje, Republic of Macedonia

Bibliografia

• [1] Baran, M.E. and Wu, F.F., “Optimal capacitor placement on radial distribution systems,” IEEE Transactions on Power Delivery, vol.4, no.1, pp.725-734, 1989.
• [2] Baran, M. and Wu, F., “Optimal sizing of capacitors placed on a radial distribution system,” IEEE Transactions on Power Delivery, vol.4, no.1, pp. 735-743, 1989.
• [3] Chiang, H.D., Wang, J.C., Cockings, O. and Shin, H.D., "Optimal capacitor placements in distribution systems: I. A new formulation of the overall problem," IEEE Transactions on Power Delivery, vol.5, no.2, pp. 634-642, 1990.
• [4] Niknam, T., Ranjbar, A.M., Arabian, H. and Mirjafari, M., "Optimal reactive power planning in harmonic distorted power system using genetic algorithm," IEEE Region 10 Conference, pp.347-350, 2004.
• [5] Masoum, M.A.S., Jafarian, A., Ladjevardi, M., Fuchs, E.F. and Grady, W.M., "Fuzzy approach for optimal placement and sizing of capacitor banks in the presence of harmonics," IEEE Transactions on Power Delivery, vol.19, no.2, pp. 822-829, 2004.
• [6] Masoum, M.A.S., Ladjevardi, M., Jafarian, A. and Fuchs, E.F., "Optimal placement, replacement and sizing of capacitor banks in distorted distribution networks by genetic algorithms," IEEE Transactions on Power Delivery, vol.19, no.4, pp. 1794-1801, 2004.
• [7] Eajal, A.A.; El-Hawary, M.E., "Optimal Capacitor Placement and Sizing in Unbalanced Distribution Systems with Harmonics Consideration Using Particle Swarm Optimization," IEEE Transactions on Power Delivery, vol.25, no.3, pp.1734-1741, July 2010.
• [8] Ladjavardi, M., Masoum, M.A.S., "Genetically Optimized Fuzzy Placement and Sizing of Capacitor Banks in Distorted Distribution Networks," IEEE Transactions on Power Delivery, vol.23, no.1, pp.449-456, Jan. 2008.
• [9] Chang, G.W., Wen-Chang Chang, Ching-Sheng Chuang, Dong-Yeen Shih, "Fuzzy Logic and Immune-Based Algorithm for Placement and Sizing of Shunt Capacitor Banks in a Distorted Power Network," IEEE Transactions on Power Delivery, vol.26, no.4, pp.2145,2153, Oct. 2011.
• [10] J. Marti, H. Ahmadi, L. Bashualdo, Linear power-flow formulation based on a voltage dependent load model, IEEE Transactions on Power Delivery, vol.28, no.3, pp.1682-1690, Jul. 2013.
• [11] IEEE Recommended Practices and Requirements for Harmonic Control in Electric Power Systems, IEEE Std. 519-1992, 1993.
• [12] Tutorial on Harmonics Modelling and Simulation, IEEE Power Engineering Society, 1998.
• [13] J.R. Carson, “Wave Propagation in Overhead Wires with Ground Return,” Bell System Technical Journal, vol. 5, pp. 539-554, 1926.
• [14] Grady, W.M., Samotyj, M.J., Noyola, A.H., "The application of network objective functions for actively minimizing the impact of voltage harmonics in power systems," IEEE Transactions on Power Delivery, vol.7, no.3, pp.1379-1386, Jul. 1992.
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