Distributed Generation Allocation for Loss Reduction and Voltage Improvement

The necessity for flexible electric systems, changing regulatory and economic scenarios, energy savings and environmental impact are providing impetus to the development of Distributed Generation (DG), which is predicted to play an increasing role in the electric power system of the near future. Distributed Generation is by definition that which is of limited size (roughly 10 MW or less) and interconnected at the substation, distribution feeder or customer load levels. The DG technologies are entering a period of rapid expansion and commercialization. The increasing load demand may violate the consumer's voltage permissible limits. While considering the tariff issues, the reduction in losses has a major role to play. With so many problems and so much new Distributed Generation being installed, it is critical that the power system impacts be assessed accurately so that DG can be applied in a manner that avoids causing desired. This paper presents an algorithm for proper Distributed Generation (DG) allocation in distribution systems, in order to minimize the electrical network losses and to guarantee acceptable voltage profile. The optimization process is a load flow base algorithm. The proposed algorithm is tested on a 33 bus test feeder to show the applicability of the method.

[1]  A. Keane,et al.  Impact of distributed generation capacity on losses , 2006, 2006 IEEE Power Engineering Society General Meeting.

[2]  W. El-khattam,et al.  Optimal investment planning for distributed generation in a competitive electricity market , 2004, IEEE Transactions on Power Systems.

[3]  M. Pipattanasomporn,et al.  Implications of on-site distributed generation for commercial/industrial facilities , 2005, IEEE Transactions on Power Systems.

[4]  J. Dixon,et al.  Reactive Power Compensation Technologies: State-of-the-Art Review , 2005, Proceedings of the IEEE.

[5]  Jarle Eek,et al.  Voltage stability issues for a benchmark grid model including large scale wind power , 2006 .

[6]  F. Jurado,et al.  Optimum location of biomass-fuelled gas turbines in an electric system , 2006, 2006 IEEE Power Engineering Society General Meeting.

[7]  P.P. Barker,et al.  Determining the impact of distributed generation on power systems. I. Radial distribution systems , 2000, 2000 Power Engineering Society Summer Meeting (Cat. No.00CH37134).

[8]  T.Q.D. Khoa,et al.  Optimizing Location and Sizing of Distributed Generation in Distribution Systems , 2006, 2006 IEEE PES Power Systems Conference and Exposition.

[9]  D.M. Falcao,et al.  Impact of distributed generation allocation and sizing on reliability, losses and voltage profile , 2003, 2003 IEEE Bologna Power Tech Conference Proceedings,.

[10]  B. Kuri,et al.  Optimisation of rating and positioning of dispersed generation with minimum network disruption , 2004, IEEE Power Engineering Society General Meeting, 2004..

[11]  J. Mitra,et al.  Siting and sizing of distributed generation for optimal microgrid architecture , 2005, Proceedings of the 37th Annual North American Power Symposium, 2005..

[12]  B. Kuri,et al.  Distributed generation planning in the deregulated electricity supply industry , 2004, IEEE Power Engineering Society General Meeting, 2004..

[13]  Jiuping Pan,et al.  Siting distributed generation to defer T&D expansion , 2001, 2001 IEEE/PES Transmission and Distribution Conference and Exposition. Developing New Perspectives (Cat. No.01CH37294).

[14]  Emilio Ghiani,et al.  A multi-objective formulation for the optimal sizing and siting of embedded generation in distribution networks , 2003, 2003 IEEE Bologna Power Tech Conference Proceedings,.

[15]  M. E. Hamedani Golshan,et al.  Distributed generation, reactive sources and network-configuration planning for power and energy-loss reduction , 2006 .

[16]  Ashish P. Agalgaonkar,et al.  Impact of wind generation on losses and voltage profile in a distribution system , 2003, TENCON 2003. Conference on Convergent Technologies for Asia-Pacific Region.

[17]  L. Kojovic.  Impact DG on voltage regulation , 2002, IEEE Power Engineering Society Summer Meeting,.

[18]  M. Vakilian,et al.  A combination of genetic algorithm and simulated annealing for optimal DG allocation in distribution networks , 2005, Canadian Conference on Electrical and Computer Engineering, 2005..

[19]  A. Akbarimajd,et al.  A Method for Placement of DG Units in Distribution Networks , 2008, IEEE Transactions on Power Delivery.

[20]  T. Funabashi,et al.  Optimal Distribution Voltage Control and Coordination With Distributed Generation , 2008, IEEE Transactions on Power Delivery.

[21]  Fei Zeng,et al.  Adequacy and responsibility of locational generation and transmission-optimization procedures , 2004, IEEE Transactions on Power Systems.

[22]  M. Negnevitsky,et al.  Distributed generation for minimization of power losses in distribution systems , 2006, 2006 IEEE Power Engineering Society General Meeting.

[23]  P. Marino,et al.  Improved and extended DG capability in voltage regulation by reactive and active power , 2007, 2007 International Conference on Power Engineering, Energy and Electrical Drives.

[24]  Taher Niknam,et al.  Impact of distributed generation on volt/Var control in distribution networks , 2003, 2003 IEEE Bologna Power Tech Conference Proceedings,.

[25]  J. F. Verstege,et al.  Optimal operation of industrial CHP-based power systems in liberalized energy markets , 1999, PowerTech Budapest 99. Abstract Records. (Cat. No.99EX376).

[26]  Nadarajah Mithulananthan,et al.  AN ANALYTICAL APPROACH FOR DG ALLOCATION IN PRIMARY DISTRIBUTION NETWORK , 2006 .