this paper presents a probabilistic confidence-interval based method for optimal placement of shunt capacitors in distribution networks by considering probabilistic characteristics of loads. the main objective function are reducing loss and improving the voltage profile. backward forward sweep method has been employed to obtain the power flow results in distribution system. in addition, integer...

In the most recent heuristic methods, the high potential buses for capacitor placement are initially identified and ranked using loss sensitivity factors (LSFs) or power loss index (PLI). These factors or indices help to reduce the search space of the optimization procedure, but they may not always indicate the appropriate placement of capacitors. This paper proposes an efficient approach for t...

In this paper, the optimal placement and sizing of capacitors for compensation reactive power unbalance in medium voltage distribution networks with unbalanced loads is proposed. The proposed capacitor allocation reduces losses caused by demand unbalance. powers are calculated IEEE STD 1459-2010, presented real values electrical magnitudes three-phase systems. results obtained from method compa...

In this paper, a modified simulated annealing technique is proposed for simultaneous improvement of power quality and optimal placement and sizing of fixed capacitor banks in a modern distribution network. The later is supplying a mix of linear and nonlinear loads imposing voltage and current harmonics. Besides, they include integrated variable-speed wind turbines as distributed generation. The...

This paper presents an efficient approach for optimal placement of capacitor in radial distribution system, with an objective of improving the voltage profile and reduction of power loss. Distribution system is a link between high voltage transmission system and the low voltage end users, so it’s very essential to keep the system healthy and with minimum losses. The present work is devoted to d...

Distributed generators are beneficial in reducing the losses effectively compared to other methods of loss reduction. In this paper optimal DG unit placement using fuzzy logic is discussed. The optimal size of the DG unit is calculated analytically using approximate reasoning suitable nodes are determined for DG unit placement. Voltage and power loss reduction indices of distribution system nod...

The allocation of distributed generation and capacitor banks is critical for success in the planning power grids. A methodology developed optimal placement renewable (wind photovoltaic powers) based on technical economic parameters. In order to preserve horoseasonal stochastic dependence nature wind solar power, uses a model that integrates sequential Monte Carlo method diagonal band Copula mod...

In distribution systems, network reconfiguration and capacitor placement are commonly used to diminish power losses and keep voltage profiles within acceptable limits. In this paper, the Hybrid Shuffled Frog Leaping Algorithm (HSFLA) has been used to optimize the balanced and unbalanced radial distribution systems using a network reconfiguration and capacitor placement. High accuracy and fast c...

Installation of Shunt Capacitor Banks (SCBs) and Voltage Regulators (VRs) within distribution system is one the most effective solutions in reactive power control for improving voltage profile reducing losses along feeder. However, presence VRs can deteriorate Stability Margin (VSM) feeders. To address this issue, paper proposes a multi-objective programming model simultaneous optimal allocatio...