Integrating the PV-Diesel Hybrid System for Reliability Improvement in Distribution System

Cho Cho Myint, Ohn Zin Lin, Soe Soe Ei Aung

Abstract


In Myanmar, as the main power generation is hydro power generation. the utility cannot supply sufficient power to customers during the dry season. Besides interruptions occur frequently due to aging system and lack of prospered protection. Therefore, reliability is an urgent issue in Myanmar. As a result of unbalance between generation and load, the distribution system is getting poor voltage profile, instability and high power losses in high load condition. According to network characteristics, the failure of a component always leads to consequence interruption in a radial distribution system.  Therefore, it is a must consideration to mitigate these challenges to enhance the system reliability. There are many techniques to solve the reliability problems such as reclosers, switching devices (manual and automated switches), system reconfiguration, feeder re-conducting and integration of distributed generation (DG). In this paper, system reliability assessment is evaluated in detail with the integration of the distributed generation such as PV-Diesel Hybrid System. The location of DG is chosen according to the expected energy not supply (EENS) and the voltage drop in proposed system. Next, the optimal sizing of DG is chosen depends on the penetration level of generator. Reliability indices can be evaluated depending on the failure rate(λ), repair time(r) and annual outage time(U) in Electrical Transient and Analysis Program (ETAP) software. The case study of this thesis is carried out in 33/11 kV network which is connected Kyatminton Substation, Kyaukse, Middle Myanmar.

Keywords: distributed generation, distribution system, EENS, reliability, reliability indices.

 


Full Text:

PDF

References


Richard E. Brown. Electric Power Distribution Reliability (Second Edition), 2009 New York: Taylor & Francis Group.

Roy Billinton, Ajit Kumar Verma, Rajesh Karki: Reliable and Sustainable Electric Power and Energy Systems Management.

Roy Billinton, Wenyuan Li: Reliability Assessment of Electric Power Systems Using Monte Carlo Methods

R. Billinton and R. N. Allan, Reliability Evaluation of Power Systems, Plenum, New York, 1984.

Ali A. Chowdhury, Don O. Koval: Power Distribution System Reliability Practical Methods and Applications. [2009]

Satish Jonnavithula,”Cost/Benefit Assessment of Power System Reiability”, Department of Electrical Engineering, University of Saskarchewan,1997

T.A.SHORT,”Electric Power Distributon Handbook” , ©2004by CRC Press LLC

Irfan Waseem, “Impacts of Distributed Generation on the Residential Distribution Network Operation” January 2008

Jin Woo Jung. 2005.“Modeling and Control of Fuel Cell Based Distributed Generation System”, Ph.D. Dissertation, University of Ohio State. Columbus,USA.

T. Q. D. Khoa, P. tt Binh et al., “Optimizing location and sizing of distributed generation in distribution systems,” in 2006 IEEE PES Power Systems Conference and Exposition. IEEE, 2006, pp. 725–732.

P. Dondi, D. Bayoumi, C. Haederli, D. Julian, and M. Suter, “Network integration of distributed power generation,” Journal of power sources, vol. 106, no. 1, pp. 1–9, 2002.

T. Dorji, “Reliability assessment of distribution systems,” Master of Science in Electric Power Engineering, Norwegian University of Science and Technology, 2009.

M. Al-Muhaini and G. T. Heydt, “Evaluating future power distribution system reliability including distributed generation,” IEEE Transactions on Power Delivery, vol. 28, no. 4, pp. 2264–2272, 2013.

Angelopoulos, K. Integration of Distributed Generation in Low Voltage Networks, Power Quality and Economics. University of Strathclyde in Glasgow; 2004




DOI: https://doi.org/10.12962/j25796216.v3.i2.89

Refbacks

  • There are currently no refbacks.


Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.