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Probabilistic load flow solution considering reactive power and voltage control

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2 Author(s)
Nimpitiwan, N. ; Dept. of Electr. Eng., Bangkok Univ., Prathumtanee ; Chaiyabut, N.

Voltage and Var control (VVC) schemes (i.e., centralized and decentralized controls) are discussed. Probabilistic load flow (PLF) method is applied on a real distribution system; the results from Monte Carlo simulations of both control schemes are compared. Models of WC element (on load tap changer, shunt capacitor and automatic voltage regulator of generator) are discussed. Voltage and reactive power in a decentralized control scheme are regulated independently through WC elements. The centralized VVC control scheme is accomplished by utilizing a genetic algorithm (GA) to minimize the number of buses in which voltage violation occurs. Advantages and disadvantages from both control schemes are discussed. Numerical results from a real distribution system are applied as a test bed.

Published in:

Power Engineering Conference, 2007. IPEC 2007. International

Date of Conference:

3-6 Dec. 2007