Analysing the maximum wind power penetration level around Kalpitiya Peninsula

Abstract

The Government of Sri Lanka has declared the importance of developing renevvable energy in line with the national policy of maximizing indigenous sources and ensuring fuel diversity. Sri Lanka has exploited hydropower resources to almost its maximum economical potential. Only a limited number of small and medium scale hydropower plants are yet to be developed. and these are already in various stages of development. Therefore. the country is now clearly at a cross road as far as future generation IS concerned. Wind is one of the promising renewable energy options available for grid connected power. In addition, wind-mapping results for Sri Lanka shows a very good wind potential in Kalpitiya area. This research covers the impact of wind integrations on the power system of Sri Lanka and analyzes the maximum wind penetration levels around Kalpitiya peninsula for theproposed years 20 I 0. 2012. 2014 and 20 I 6 transmission networks. A steady state system analysis as well as a frequency and voltage stability analysis are used appropriately to figure out the wind penetration limits. Finally. a transient stability analysis is performed to confirm the stable operation of the wind integrated power systems. The widely known power system simulation software package PSS' E is used to model wind turbines and perform steady state and stability analyses. This research project concludes that 20MW: 70MW. 185MW and 220MW wind absorptions are feasible respectively in the years 20 I 0, 2012, 2014 and 2016 at Puttlam GS/PS. Approximately 30% wind availability is considered for the steady state system analysis. In addition, 5% spinning reserve response on droop is assumed for year 20 I 0 and 2012 and I 0% spinning reserve response on droop is assumed for year 2012 and 2014. Analyzing the most economical wind penetration limit with net work modifications is beyond the scope of this research and is open for further research study.