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The objective of an Optimal Power Flow (OPF) algorithm is to find steady state operation point which minimizes generation cost, loss etc. or maximizes social welfare, loadability etc. while maintaining an acceptable system performance in terms of limits on generatorsâ€™ real and reactive powers, line flow limits, output of various compensating devices etc.â€¦ (More)

- Vipul N. Rajput, Kartik S. Pandya, Kevin Joshi
- 2015 12th International Conference on Electricalâ€¦
- 2015

The optimal coordination of Directional Overcurrent Relays (DOCRs) is a nonlinear and non-convex optimization problem integrating large number of constraints. In this paper, the hybrid Cuckoo Search Algorithm (CSA) - Firefly Algorithm (FFA) approach is implemented to solve coordination problem of DOCRs. The Artificial Intelligence (AI) based method such asâ€¦ (More)

- G. U. Darji, Meha J. Patel, Vipul N. Rajput, Kartik S. Pandya
- 2015 International Conference on Power andâ€¦
- 2015

The precise coordination of Directional Overcurrent Relays (DOCRs) is required to identify fault timely, effectively and isolate them from the network to avoid possible outages in a power system. The DOCRs coordination is an optimization problem including highly nonlinear constraints. In this paper, Cuckoo Search Algorithm (CSA) is implemented to solveâ€¦ (More)

- Firas M. Tuaimah, Yaser Nadhum Abd, +6 authors Mohamed E. El-Hawary
- 2013

In this paper, the Ant Colony Optimization (ACO) based Optimal Power Flow (OPF) analysis implemented using MATLABÂ® is applied for the Iraqi Super High (SHV) grid, which consists of (11) generation and (13) load bus connected to each other with 400-kV power transmission lines. The results obtained with the proposed approach are presented and comparedâ€¦ (More)

- Kartik S. Pandya, Dipak Dabhi, S. K. Joshi
- 2015 Clemson University Power Systems Conferenceâ€¦
- 2015

Optimal power flow is an important non-linear optimization task in power systems. In this process, the total power demand is distributed amongst the generating units such that each unit satisfies its generation limit constraints and the cost of power production is minimized. This paper presents a comparative study of new meta-heuristic optimizationâ€¦ (More)

- Vipul N. Rajput, Kartik S. Pandya
- 2016 IEEE 6th International Conference on Powerâ€¦
- 2016

The challenges in coordination of Overcurrent Relays (OCRs) are recognized as a nonlinear optimization problem with a large number of coordination constraints for multi-loop and multi-source interconnected networks. Several methods including topological analysis, deterministic and Artificial Intelligence (AI) based techniques are used to solve this problem.â€¦ (More)

- Madhavi Kavaiya, Kartik S. Pandya
- 2014

an integer linear programming based methodology for optimal placement of PMU in a given power network for full observability of that network is presented in this paper. First conventional complete observability of the given network is formulated and then, zero injection bus constraints are added in previous formulation. The results from conventional andâ€¦ (More)

- Kartik S. Pandya, M. W. Davies
- Anaesthesia
- 1996

- Jigarkumar A. Patel, Rajiv S. Mehta, Shailendra B Rathod, Kaushal J. Patel, Vipul N. Rajput, Kartik S. Pandya
- 2016 International Conference on Electricalâ€¦
- 2016

Geomagnetically induced current (GIC) is harmful to the power system mainly on the transformer. Also, it causes serious problems to the transformers. It is DC bias current produced due to the effect of solar storm on earth. As GIC enter in the transformer through neutral wire it will lead to saturation of the transformer core. It produces harmonics in theâ€¦ (More)

Osteoporosis is the thinning of bone tissue and loss of bone density over time. Osteoporosis is a major and growing public health problem for older women and men in western society. Bone is the major reservoir for the calcium and phosphate and is in constant state of remodeling during stress, many factor effects the bone resorption. Understanding theâ€¦ (More)