Ali Khorasani Ferdavani

Reconfiguration of Radial Electrical Distribution Network Through Minimum-Current Circular-Updating-Mechanism Method

Reconfiguration of the Radial Electrical Distribution Network (ROREDN) is one vital analysis to optimize and control the electrical distribution system. This paper presents a new heuristic method for ROREDN based on minimum branch current in the system. A circular updating mechanism is presented in which every open switch is acquired and updated. The proposed technique has been tested and compared to other existing ones on four hypothetical electrical distribution networks. The method has remarkably solved the problems accurately with fast computational times.

Two Circular-Updating Hybrid Heuristic Methods for Minimum-Loss Reconfiguration of Electrical Distribution Network

This paper presents two hybrid heuristic methods for reconfiguration of the radial electrical distribution system. The first stage of the proposed techniques is a circular minimum-branch-current updating mechanism to bypass the local optimum points. Then, by a circular neighbor-chain updating technique, the best known configuration is obtained. The proposed approaches have been tested on the six well-known electrical distribution networks. The results show that the proposed methods have remarkably achieved the best-known optimum solution with more reliability, accuracy and efficiency than many other published methods.

A review on reconfiguration of radial electrical distribution network through heuristic methods

Reconfiguration of Radial Electrical Distribution Network (ROREDN) is one vital analysis to optimize and control the electrical distribution system. This paper explained the application and objectives of ROREDN. There are considerable Heuristic Methods (HMs) presented by researcher for ROREDN as optimization approaches. This paper also reviewed some important strategies of HMs. The research represents that in the case of optimization methods, HMs could have remarkably solved the problems simple with fast computational times.

Reconfiguration of Radial Electrical Distribution Network through Neighbor-Chain Updating method

This paper presents new heuristic method for Reconfiguration of Radial Electrical Distribution Network (ROREDN) based on a circular Neighbor-Chain Updating mechanism. The theory of the proposed method is to exchange every open switch of the initial configuration with its best neighbor switch. The proposed technique has been tested and compared to other existing ones on two hypothetical electrical distribution networks. The results show that this method has a significant contribution in finding optimal configuration and can be applied separately or with other optimization approaches to improve the accuracy of final solution.

Impact of fixed-speed wind turbine farm on radial distribution network

This paper presents the result of development wind farm as unpredictable renewable energy resource in radial distribution network. Wind farm consists of pitched regulated fixed-speed wind turbine which is developed in 24-hour forward-backward sweep load flow analysis. Through load flow analysis, some parameters of network such as voltage profiles, total real power fed of substation and total power loss are calculated for each internal period hour of day. Procedure for capacity allocation of wind farm is determined by both network and wind turbine characteristics for one hourly wind speed for one day. The proposed method is developed for one case-study using MATLAB® software. The results are shown and compared in an abbreviated manner.

A neighbor-chain updating approach for multi-objective reconfiguration of electrical system

This paper presents a new multi-objective heuristic approach for reconfiguration of radial electrical distribution system based on a circular neighbor-chain-updating process. The proposed method (PM) attempts to exchange each tie switch of the initial configuration with its best neighborhood switch, which is regularly updated until there is no change in the objective function (OF). This process creates a chain of the updated open switches. Besides, OF as a multi-objective function includes minimizing a combination of total power loss and maximum voltage drop of electrical system. The PM has been performed and compared to other existing ones on three standard electrical distribution networks. The results show that this method has a considerable contribution in finding optimum solution and can be applied separately or with other optimization approaches to improve the accuracy of final configuration.

Differential evolution algorithm for transmission network expansion planning based on AC load flow model

Transmission expansion planning has become a complicated process in the recent era. The fast growth of the transmission networks and the deregulation has introduced more factors to be considered in transmission expansion planning to the transmission network planners. The main goal of this process is to locate the additional transmission lines that must be added to meet the forecasted load in the system adequately with minimum cost. This work solves the transmission expansion planning using meta-heuristic algorithm by the means of differential evolution as an optimization tool. An AC load flow model is used in solving the TEP problem. DEA produced a high quality solution for the TEP problem.