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Optimal Placement of Active Filters in a Power System

Ghasemian, Majid | 2013

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 45212 (05)
  4. University: Sharif University of Technology
  5. Department: Electrical Engineering
  6. Advisor(s): Mokhtari, Hossein
  7. Abstract:
  8. The extensive use of nonlinear loads such as motor drives and new generation of home appliances has caused a deterioration of power quality in power systems. The use of active power filters due to the fast variation of the loads has been recommended by power engineering. In this method, the harmonic profiles are controlled by applying active filters in a distribution feeder. Optimal placement of active filters in a distribution system due to the increase of harmonic generation loads has attracted researchers. However placement of each filter is the major concern that researchers face. In this paper, a new objective function is introduced to determine the optimal number and location of active filters in a distribution system. The size of the filter is determined as the optimal placement is carried out by using genetic algorithms. According to the importance of voltage quality and power losses in distribution systems, the objective of the proposed genetic algorithm optimization is to minimize total harmonic distortion and the energy losses with respect to the number of filters that can be used. The propose method is tested on a standard network considering load variation. In the end, through technical and economical investigation, suitable criteria for determination of the coefficients of the objective function indexes are also proposed
  9. Keywords:
  10. Convection ; Active Filter ; Objective Function ; Nonlinear Load ; Power Loss ; OBJECTIVE FUNCTION ; Total Harmonic Distortion

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