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A Reactive Power Model for a Simultaneous Real and Reactive Power Dispatch
2007 IEEE Power Engineering Society General Meeting, 2007This paper investigates the simultaneous dispatch of real power and reactive power in restructured electricity markets. In this proposed method the opportunity cost of supplying reactive power is implicitly modeled using the rating of the machine as a constraint.
L.Y.C. Amarasinghe +2 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.
Md. Nazmul Islam Sarkar +2 more
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Optimal reactive power dispatch considering wind turbines
2014 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC), 2014This paper succeeds in solving the optimal reactive power dispatch (ORPD) of power system where the units contains wind turbines. Two types of wind turbine are taken into account in the ORPD, and they are the variable speed wind turbine (VSWT) and the fixed speed wind turbine (FSWT). Besides, the primal dual interior point method is introduced to serve
Xiaoming Jin +3 more
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Optimal reactive power dispatch with fuzzy variables
1993 IEEE International Symposium on Circuits and Systems, 2002The authors present a consistent treatment of the optimal reactive power dispatch problem taking into account the uncertainty associated with load values. Linguistic declarations of loads are translated into possibility distribution functions via fuzzy sets.
K.H. Adbul-Rahman, S.M. Shahidehpour
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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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Optimal reactive power dispatch using JAYA algorithm
2018 Emerging Trends in Electronic Devices and Computational Techniques (EDCT), 2018Optimal reactive Power Dispatch (ORPD) is a very useful mechanism for achieving an economic and secure operation of the power system. The problem is formulated as a single objective, complex non-linear, optimization problem containing different control variables to determine the optimal solution while satisfying various constraints simultaneously.
Tanmay Das, Ranjit Roy
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Optimal reactive power dispatch considering FACTS devices
Electric Power Systems Research, 1998Conventional optimal reactive power dispatch (ORPD) formulations utilize minimization of total system real power loss or voltage deviation as an objective to compute optimal settings of reactive power output or terminal voltages of generating plants, transformer tap settings and output of other compensating devices such as capacitor banks and ...
Preecha Preedavichit, S.C. Srivastava
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OPF computer program for reactive power dispatch
2012 10th International Power & Energy Conference (IPEC), 2012In this paper the problem of reactive power dispatching in electrical power systems is studied. The problem is treated through optimal power flows (OPF) using an objective function that minimizes real power losses in transmission lines. A computer program that solves OPF was written in Matlab/Octave using the Newton-Raphson method (NR) and quadratic ...
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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 control considering uncertain wind power
2017 International Conference on Robotics and Automation Sciences (ICRAS), 2017In this paper, a downside risk constrained optimal reactive power dispatch control (ORPDC) model is proposed, with the consideration of uncertain wind power integrated into power systems. In this model, the expectation of transmission loss and its downside risk are considered, simultaneously.
Yuanzheng Li +4 more
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