Browsing by Author "Simon, S.P."

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Enhanced energy output from a PV system under partial shaded conditions through artificial bee colony
(Institute of Electrical and Electronics Engineers Inc., 2015) Sundareswaran, K.; Peddapati, P.; Srinivasa Rao Nayak, P.S.R.; Simon, S.P.; S, S.
For the maximum utilization of solar energy, photovoltaic (PV) power generation systems are operated at the maximum power point (MPP) under varying atmospheric conditions, and MPP tracking (MPPT) is generally achieved using several conventional methods. However, when partial shading occurs in a PV system, the resultant powervoltage (PV) curve exhibits multiple peaks and traditional methods that need not guarantee convergence to true MPP always. This paper proposes an artificial bee colony (ABC) algorithm for global MPP (GMPP) tracking under conditions of in-homogenous insolation. The formulation of the problem, application of the ABC algorithm, and the results are analyzed in this paper. The numerical simulations carried out on two different PV configurations under different shading patterns strongly suggest that the proposed method is far superior to existing MPPT alternatives. Experimental results are also provided to validate the new dispensation. © 2010-2012 IEEE.
Touring ant colony optimization technique for optimal power flow incorporating thyristor controlled series compensator
(2009) Sreejith, S.; Chandrasekaran, K.; Simon, S.P.
In this work, a study about Touring And Colony Optimization (TACO) for the solution of Optimal Power flow with the use of controllable FACTS device is done. Its proven that this method can provide an enhanced economic solution with the use of controllable FACTS devices. Thyristor controlled series compensators (TCSC) is considered in this method. In deregulated power system environment it is necessary to maintain specified power in contract transmission line path. Hence the specified power flow control, constraints due to the use of FACES devices are included in the OFF problem. The sensitivity analysis is carried out for the location of FACES devices. The proposed method can be considered for saving two sub-problems. The first sub-problem is a power flow control problem by incorporating TCSC in the contract path of power system network and the second sub-problem is the conventional OFF problem. The two sub-problems are simultaneously solved using Touring Ant Colony Optimization (TACO) algorithm. The solutions are compared and tested using a standard IEEE 30-bus system thereby validating feasibility of this approach. �2009 IEEE.
Touring ant colony optimization technique for optimal power flow incorporating thyristor controlled series compensator
(2009) Sreejith S, S.; S, K.; Simon, S.P.
In this work, a study about Touring And Colony Optimization (TACO) for the solution of Optimal Power flow with the use of controllable FACTS device is done. Its proven that this method can provide an enhanced economic solution with the use of controllable FACTS devices. Thyristor controlled series compensators (TCSC) is considered in this method. In deregulated power system environment it is necessary to maintain specified power in contract transmission line path. Hence the specified power flow control, constraints due to the use of FACES devices are included in the OFF problem. The sensitivity analysis is carried out for the location of FACES devices. The proposed method can be considered for saving two sub-problems. The first sub-problem is a power flow control problem by incorporating TCSC in the contract path of power system network and the second sub-problem is the conventional OFF problem. The two sub-problems are simultaneously solved using Touring Ant Colony Optimization (TACO) algorithm. The solutions are compared and tested using a standard IEEE 30-bus system thereby validating feasibility of this approach. Â©2009 IEEE.