Effect of Applying Time-Varying Load on the Optimal Location and Size of Fixed and Switched Capacitors on Radial Feeder with Laterals.

Document Type : Research Studies

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Electrical Power Engineering Department, Faculty of Engineering, Mansoura University, Mansoura, Egypt.

Abstract

 A preceding paper (1) deals only with the problem of optimal location and size of fixed capacitors on the primary feeder when it is loaded with static load only. This paper deals with the same problem when the primary feeder has lateral and sublateral branches and loaded with time varying loads at the nodes. An analysis for the notation of currents and voltages for the main feeder with lateral and sublateral branches is introduced .  Also, the analysis of the time-varying load to be introduced in the problem is discussed to obtain the optimal solution of locating and sizing fixed and switchable capacitors on a feeder with lateral and sublateral branches. The time-varying load is also app < /strong>lied on a single radial feeder. The proposed technique proves to be a suitable for the general distribution 9ystem with laterals problem to obtain the optimality of fixed capacitors. The effect of unit-capacitor size and growth of cost factors on the optimal solution are discussed. The objective is to maximize the overall savings while satisfying voltage-drop and voltage-rise constraints. 
 
 
 
 

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