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Genetic algorithm for optimal reactive power dispatch
Proceedings of EMPD '98. 1998 International Conference on Energy Management and Power Delivery (Cat. No.98EX137), 2002Scheduling of reactive power in an optimum manner reduces circulating VAr promoting flatter voltage profile which lead to appreciable MW saving on account of reduced power system losses. Hence, the optimal reactive power dispatch assumes extremely important functioning both in the planning stage as well as in day to day operation of the power system ...
W.N.W. Abdullah +3 more
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Chance Constrained Optimal Reactive Power Dispatch
2018 IEEE Power & Energy Society General Meeting (PESGM), 2018The uncertainties from deepening penetration of renewable energy resources have already shown to impact not only the market operations, but also the physical operations in large power systems. It is demonstrated that deterministic modeling of wind would lead to voltage insecurity in the reality where wind fluctuates.
Xinbo Geng, Le Xie, Diran Obadina
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Implications of reactive power on nodal pricing and dispatch
2000 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.00CH37077), 2002This paper investigates the effect of reactive power constraints on the nodal prices and dispatch in a deregulated pool market. If the market rules are such that the real power is bundled with the reactive power, the nodal prices will have components due to reactive power constraints.
R.A.S.K. Ranatunga +2 more
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On Optimal Grid Partitioning for Distributed Optimization of Reactive Power Dispatch
2021 IEEE Power & Energy Society Innovative Smart Grid Technologies Conference (ISGT), 2021Distributed optimization has been shown to be one promising method for tackling reactive power dispatch, however the performance of distributed algorithms is known to be dependent on how the given problem is partitioned. The question of how to optimally partition a power grid for use in distributed optimization remains open in the literature.
Alexander Murray +3 more
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Security constrained optimal reactive power dispatch
Electric Power Systems Research, 1989Abstract This paper presents a systematic methodology to allocate reactive power devices in a power system. This is achieved through the application of an active set analysis based linear programming technique. The procedure takes into consideration outages which cause voltage problems and also existing reactive power controllers are fully utilized ...
Venkataramana Ajjarapu +2 more
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Algorithms for incorporating reactive power into market dispatch
Electric Power Systems Research, 2003Abstract This paper proposes some methods for incorporating reactive power dispatch into nodal pricing and dispatch algorithms in pool-based electricity markets. The current approach of dispatching real power using a simplified power flow model and subsequently allocating reactive power as an ancillary service has the problem of getting suboptimal ...
R.A.S.K. Ranatunga +2 more
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A novel algorithm for the Optimal Reactive Power Dispatch
2018 20th National Power Systems Conference (NPSC), 2018The problem of Optimal reactive Power Dispatch (ORPD) is a non-linear and complex optimization problem having non-linear functions with many non-linear as well as discontinuous constraints. The solution of the problem helps in minimizing the active power losses, reduction of voltage deviation, improvement of the voltage stability margin, and thus ...
Tanmay Das, Ranjit Roy
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Reactive power dispatch incorporating voltage stability
IEE Proceedings C Generation, Transmission and Distribution, 1992The cause of the 1977 New York blackout has been proved to be the reactive-power problem. The 1987 Tokyo blackout was believed to be due to a reactive-power shortage and a voltage collapse at the summer peak load. These events have confirmed the importance of reactive-power planning and dispatching in maintaining the security of modern power systems ...
A.M. Chebbo +2 more
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Swarm Intelligence for Optimal Reactive Power Dispatch
2005 IEEE/PES Transmission & Distribution Conference & Exposition: Asia and Pacific, 2005This paper presents swarm intelligence to solve optimal reactive power dispatch (ORPD) problem. Results derived with swarm intelligence, improved genetic algorithm and a conventional gradient-based optimization method were compared. The comparison shows that swarm intelligence would produce similar results on the IEEE 30-bus system as those from ...
L.L. Lai +6 more
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Optimal Reactive Power Dispatch Considering Reactive Power Support from Renewable Energy Generators
2019 IEEE International Conference on Industrial Technology (ICIT), 2019Due to integration of large amount of renewable energy generators (REGs) to the power grid, implementation of reactive power support mechanisms as well as their optimal placement and operation are becoming a real challenge for the transmission/distribution system operators.
Mohammad Nazmul Islam Sarkar +2 more
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