Optimal schedule of dispatchable DG in electrical distribution systems with extended dynamic programming

Pedro P. Vergara, Juan C. López, Christiano Lyra, Luiz C.P. Da Silva

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

1 Citation (Scopus)

Abstract

In this paper, the optimal schedule of dispatchable distributed generation (DG) units connected to radial electrical distribution systems (EDS) is solved using an extended dynamic programming approach. The objective of the optimal DG scheduling problem is to determine the hour-by-hour active generation output of each dispatchable DG unit, in order to minimize the total active power losses of the EDS and the generation costs. The proposed extended dynamic programming (EDP) is an advantageous approach because convexity is not required to obtain a global optimal solution, and the 'curse of dimensionality' is not a concern since the computational complexity of the algorithm grows linearly with the size of the network. Besides, the state variables have only two dimensions, one to represent the active power flows and the other to represent the nodal voltages. A 56-nodes MV distribution system with two dispatchable DG units is used to evaluate the performance of the proposed EDP approach, considering a deterministic and a stochastic case. A set of Monte Carlo simulations is used to analyze the influence of uncertainties. Results confirm that the proposed methodology is a suitable approach to unveil the best operation schedule for dispatchable DG units.

Original languageEnglish
Title of host publicationProceedings of 2016 17th International Conference on Harmonics and Quality of Power, ICHQP 2016
PublisherIEEE
Pages204-208
Number of pages5
ISBN (Electronic)9781509037926
DOIs
Publication statusPublished - 2016
Externally publishedYes
Event17th International Conference on Harmonics and Quality of Power, ICHQP 2016 - Belo Horizonte, Minas Gerais, Brazil
Duration: 16 Oct 201619 Oct 2016

Publication series

NameProceedings of International Conference on Harmonics and Quality of Power, ICHQP
Volume2016-December
ISSN (Print)1540-6008
ISSN (Electronic)2164-0610

Conference

Conference17th International Conference on Harmonics and Quality of Power, ICHQP 2016
Country/TerritoryBrazil
CityBelo Horizonte, Minas Gerais
Period16/10/1619/10/16

Keywords

  • Dispatchable distributed generation
  • electrical distribution systems
  • extended dynamic programming
  • Monte Carlo simulations

Fingerprint

Dive into the research topics of 'Optimal schedule of dispatchable DG in electrical distribution systems with extended dynamic programming'. Together they form a unique fingerprint.

Cite this