Abstract

In this study, thereby explaining under which circumstances an interconnected transmission network works that, in Turkey 380 and 154 kV power transmission lines connected to each other and consist of 18 generation and 96 load buses that the interconnected power network of Northwest Anatolia taken up with 114 buses and also done the power flow and constraint analysis in order to plan for new establishing systems. With these analysis, the loading of generation power plants was enabled in the most proper way. At Northwest Anatolia network; power flow analysis is done for different load conditions thereby using PSAT programme which is generated by Matlab, plants are determined which will be finished in 2010, proper generation planning is prepared according to high and normal load estimations and also all new rates are found out at buses. Newton-Raphson iteration method is used in PSAT programme. Supplement tranformers, transmission lines and power generation units are determined according to obtained analysis results.

Key words: Power systems, load flow, load estimation, constraint and risk analysis.