Availability of decentralized inverter concept of PV power system in Ubon Ratchathani, Thailand

Authors

  • Panu Tanomvorasin School of Renewable Energy Technology (SERT), Naresuan University, Phitsanulok 65000, Thailand
  • Prapita Thanarak School of Renewable Energy Technology (SERT), Naresuan University, Phitsanulok 65000, Thailand

Keywords:

Availability, decentralized inverter, centralized inverter, photovoltaic system

Abstract

This article presents the availability of decentralized inverter concept of PV power system located at Tambon Sakkapoloom, Muangsamsib District, UbonRatchathani province of Thailand.  The 1MW PV system consists of 255numbers of 4kW decentralized inverters.  The data used in calculation process was collected from 1st February 2013 to 31st January 2014.  The results of this research found that the average availability of the decentralized inverter concept in PV power system was 99.98% while in centralized inverter concept it was 97.47%. However, the evaluation period of only 1 year when compared with the life time of these PV power plants. The different failure characteristic of these PV power plants that always happen in every month for decentralized system and rarely happen in a year for centralized system were also dominated availability of these PV power plants. So, it is possible that availability of these PV power plants may not be different or availability of centralized system becomes better than decentralized system, depending on the evaluation period. This result can be used for feasibility study of centralized and decentralized PV power plants for Thailand in the future.

References

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H.S.Huang, J.C. Jao, K.L. Yen, and C.T. Tsai., Performance and Availability Analysis of PV Generation Systems in Taiwan, World Academic of Science, Engineering and Technology, 2011, 309-313.

H.T. Nguyen, J.M. Pearce., Estimating Potential Photovoltaic Yield with r.sun and Open Source Geographical Resources Analysis Support System, Solar Energy 84, 2010, 831-843.

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Published

2016-02-11

How to Cite

Tanomvorasin, P., & Thanarak, P. (2016). Availability of decentralized inverter concept of PV power system in Ubon Ratchathani, Thailand. Journal of Renewable Energy and Smart Grid Technology, 10(2), 45–54. Retrieved from https://ph01.tci-thaijo.org/index.php/RAST/article/view/48621

Issue

Vol. 10 No. 2 (2015): July - December 2015

Section

Articles

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