• OpenAccess
    • List of Articles Mehdi Nafar

      • Open Access Article

        1 - Studying Impact of Unified Power Flow Controller on improve transient stability by Improved Harmony Search Algorithm
        Mehdi Nafar Mostafa Abbasi Mojtaba Abbasi
        Main contribution of this work is improving transient stability by installing Flexible AC Transmission System (FACTS) in power systems. For do this, Unified Power Flow Controller (UPFC) has been selected. Also a novel structure has been suggested to improve classic Harm More
        Main contribution of this work is improving transient stability by installing Flexible AC Transmission System (FACTS) in power systems. For do this, Unified Power Flow Controller (UPFC) has been selected. Also a novel structure has been suggested to improve classic Harmony Search algorithm and suggested improved Harmony Search (iHS) algorithm. This algorithm has been used to obtain UPFC parameters. Simulation has been performed by SIMULINK/MATLAB environment. Simulation results illustrate power and accuracy of the proposed technique. Manuscript profile
      • Open Access Article

        2 - Improvement of Power System Condition by Placement of Flexible Alternating Current Transmission Systems devices
        Mehdi Nafar Mojtaba Abbasi Mostafa Abbasi
        Flexible Alternating Current Transmission Systems (FACTS) devices have been used for several targets in power system, one of the main contributions of the devices is improving operation conditions. In this paper, two types of these devices have been placed to raise volt More
        Flexible Alternating Current Transmission Systems (FACTS) devices have been used for several targets in power system, one of the main contributions of the devices is improving operation conditions. In this paper, two types of these devices have been placed to raise voltage profile, minimizing system loss and arising loadability. The suggested FACTS devices are: Unified Power Flow Controller (UPFC) and Static Var Compensator (SVC). This problem has been solved by a novel intelligent algorithms. Simulation has been performed on MATLAB software environment. Capability of the proposed model has been confirmed by testing on 30-bus IEEE test system. Manuscript profile