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Optimal power flow in distribution networks

Optimal power flow in distribution networks

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In this chapter, a generalized approach for the OPF analysis in distribution networks is presented. This implies the inclusion of different types of DG units, taking into account the uncertainties of the input variables, the multiobjective optimization, and application of efficient metaheuristic methods for solving the OPF problem.

Chapter Contents:

  • 9.1 Introduction
  • 9.2 Deterministic optimal power flow
  • 9.2.1 Objective function
  • 9.2.2 Constraints
  • 9.3 DG units modeling for OPF
  • 9.3.1 Diesel generator
  • 9.3.2 Fuel cell
  • 9.3.3 Microturbine
  • 9.3.4 Wind turbine
  • 9.3.5 Photovoltaic
  • 9.3.6 Mini hydropower plants
  • 9.3.7 Electric grid
  • 9.4 Solution methods
  • 9.4.1 Genetic algorithm
  • 9.4.1.1 GA implementation to the deterministic OPF problem
  • 9.4.2 Gravitational search algorithm
  • 9.4.2.1 GSA implementation to the deterministic OPF problem
  • 9.5 Probabilistic optimal power flow
  • 9.5.1 Statistical characterization of the input random variables
  • 9.5.1.1 Wind speed modeling
  • 9.5.1.2 Solar irradiance modeling
  • 9.5.1.3 Probabilistic load model
  • 9.5.2 Statistical evaluation of the output variables
  • 9.5.3 Procedure for solving probabilistic OPF
  • 9.6 Simulation results
  • 9.6.1 Deterministic OPF analysis
  • 9.6.2 Probabilistic OPF analysis
  • 9.7 Educational software—metahopt
  • 9.8 Conclusion
  • References

Inspec keywords: distribution networks; load flow; optimisation

Other keywords: OPF analysis; optimal power flow; DG units; distributed generation penetration; distribution networks; multiobjective optimization; metaheuristic methods; generalized approach

Subjects: Optimisation techniques; Distribution networks

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