Supply power quality improvement using Steinmetz principle and network short circuit capacity
01 Dec 2015-pp 1-6
TL;DR: In this paper, Steinmetz principle has been implemented for the phase current balance of three phase networks by supplying power to both slow as well as fast varying delta connected linear and unbalanced loads at unity power factor.
Abstract: In this paper, Steinmetz principle has been implemented for the phase current balance of three phase networks by supplying power to both slow as well as fast varying delta connected linear and unbalanced loads at unity power factor. The reactive power compensation of the proposed technique delivers close to unity power factor and also helps active load balancing of the three phase currents efficiently. This paper, thus, explains the application of Steinmetz principle to delta connected unbalanced loads and establishes its relevance also to varying loads. Further, it investigates the dynamic operation of the control scheme for Static Condenser (STATCON) which uses the same principle for referencing the currents to achieve desired balanced unity power factor phase currents. The proposed system is simulated in Matlab / Simulink platform. The simulation result shows the effectiveness of this method.
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01 Dec 2012
TL;DR: The objective of this paper is to show how the generation companies' market power gets enhanced due the FACTS devices and the results obtained are compared.
Abstract: In power system studies, congestion in transmission lines and utilization of Flexible Alternating Current Transmission System (FACTS) devices are closely associated and it is very important due to their role in power delivery system enhancement. It is to be noted that the generation companies can exercise their market power which depends on the line flows and the line constraints, generators' location and its share to the individual loads. This issue cannot be overlooked as it creates monopoliness which is a threat to the deregulated market policy. The objective of this paper is to show how the generation companies' market power gets enhanced due the FACTS devices. FACTS devices like Thyristor Controlled Switching Capacitor (TCSC) and Thyristor Controlled Phase Angle Regulator (TCPAR) are taken and used under steady state operation. The market power is determined using Nodal Must Run Share (NMRS) index for the standard IEEE 14-bus system with and without the above FACTS devices and the results obtained are compared. All the above simulations are carried out in MATLAB 7.9- R2009b environment.
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