Battery-Switching Station (BSS) is one of the most important components in the growth of electrical vehicle (EV) market. In the distribution network point of view, these BSS units are a new type of load in the distribution system for charging the EV. The charging process consume real power, thus the nature of BSS load is purely resistive. Without proper allocation of BSS units, it might cause the power losses in the distribution system increase dramatically. In the present study, BSS units are located optimally utilizing Artificial Bee Colony (ABC) algorithm. The 33-bus distribution system with three distributed generators (DG) units using different load types is used as a test system. The result shows that the optimal location of BSS units does not affect the load types but has an impact to the power losses and voltage profile value.
This paper investigates the application of SVC hybrid controller for improving damping inter-area modes of oscillations. The proposed controller comprised fuzzy logic proportional and derivative controller with the conventional Proportional and integral controller (FUZZY PD+PI) turn by genetic algorithm techniques. The proposed control scheme implements the characteristics of the GA's global optimization to optimize the FPD control parameters, k p , k d ,K P ,K I and K D to obtain the best control effect by minimizing the integral time square error online. This type of hybrid control is proved to be more robust and effective in damping electromechanical oscillations of the power systems in comparison with the conventional PID regulators or Fuzzy only used for SVC control. The performances of the controllers and the improvement in the system response are presented to highlight the effectiveness of the proposed SVC controller in a two -area four machines power system Keywords-SVC, Power system oscillations, fuzzy logic control, GA and PID
this paper proposes Eigen value analyses to assess the most appropriate input signals (stabilizing signal) for supplementary damping control of SVC.The approaches considered in selecting most receptive signal to a mode of the Inter-area oscillation are: controllability and observability based on Hankel Singular Value (HSV) and non-minimum phase system based on Right-Half Plane zeroes. The usefulness of the proposed method of selection signals is demonstrated on IEEE U5-Bus Power system
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