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Energy Optimization for Distributed Energy Resources Scheduling with Enhancements in Voltage Stability Margin

Author

Listed:
  • Hugo Morais
  • Tiago Sousa
  • Angel Perez
  • Hjörtur Jóhannsson
  • Zita Vale

Abstract

The need for developing new methodologies in order to improve power system stability has increased due to the recent growth of distributed energy resources. In this paper, the inclusion of a voltage stability index in distributed energy resources scheduling is proposed. Two techniques were used to evaluate the resulting multiobjective optimization problem: the sum-weighted Pareto front and an adapted goal programming methodology. With this new methodology, the system operators can consider both the costs and voltage stability. Priority can be assigned to one objective function according to the operating scenario. Additionally, it is possible to evaluate the impact of the distributed generation and the electric vehicles in the management of voltage stability in the future electric networks. One detailed case study considering a distribution network with high penetration of distributed energy resources is presented to analyse the proposed methodology. Additionally, the methodology is tested in a real distribution network.

Suggested Citation

  • Hugo Morais & Tiago Sousa & Angel Perez & Hjörtur Jóhannsson & Zita Vale, 2016. "Energy Optimization for Distributed Energy Resources Scheduling with Enhancements in Voltage Stability Margin," Mathematical Problems in Engineering, Hindawi, vol. 2016, pages 1-20, May.
    • Handle: RePEc:hin:jnlmpe:6379253
    DOI: 10.1155/2016/6379253
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