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Distributed generation (DG) is utilized in electric power networks for the purpose of loss reduction, environment friendly features, and voltage improvement. This paper determines optimal allocation of DGs through Multi-Objective Index (MOI) for improving voltage stability and decreasing line losses of radial distribution system. Multiple objectives are merged using weighting factors and investigated...
During last few eras, restructuring has surpassed all possible areas comprising the electric power supply industry. Restructuring has carried out significant advantages such that an electricity is nowadays a commodity. Competitive market also paved way for numerous participants. This leads to congestion in transmission lines. Furthermore, transmission network in open access has strengthened the congestion...
This paper employs a comprehensive investigation on the ampacity of thyristor-controlled series capacitor (TCSC) in load flow adopting Newton Raphson Load Flow (NRLF) and Automatic Differentiation (AD) techniques. Load flow problem evaluates state variables which consecutively handles control variables to accomplish operating and physical constraints. Mostly, TCSC control systems deploy impedance...
This paper proposes a new index to assess the voltage stability of the system accurately. The index is based upon exact model of transmission system and developed using ABCD parameters of network. One of the important features of the proposed index is that it incorporates the effects of relative directions of active and reactive power flows in the line to predict voltage collapse. The proposed technique...
This paper presents a Genetic Algorithms (GA) based approach to seek the optimal location of FACTS devices to improve voltage stability margin and minimize reactive power loss of the power systems. The location of FACTS devices, type, cost, and parameter values are optimized simultaneously. Static models of three FACTS devices consisting of Unified Power Flow Controller (UPFC), Thyristor Controlled...
This paper proposes a novel model of unified power flow controller (UPFC) for enhancing voltage stability margin of the power systems. This model is based upon an innovative approach where, real power exchange of series and shunt elements of UPFC are decoupled with each other. The UPFC model is incorporated into an existing Newton-Raphson load flow algorithm and Jacobian matrix is modified to include...
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