Question

A 50-Hz power system consists of two interconnected areas. Area 1 has 2000 MW of total generation and an area frequency response characteristic of 700 MW/Hz. Area 2 has 4000 MW of total generation and an area frequency response characteristic of 1400 MW/Hz. Each area is initially generating one-half of its total generation at 50 Hz and with tie line flow at 50 MW (from area 2 to area 1) when the load in area 1 suddenly increases by 100 MW. 6.1 Determine the steady-state frequency error ?f and the contribution of the two areas to the additional (100 MW) demand. -0.0476 Hz; 33.33 MW; 66.67 MW 6.2 If, following the load increase of 100 MW, the tie-line is suddenly opened as a result of a fault, determine the new steady-state frequencies for the two areas. 50.06 Hz, 49.74 Hz

          A 50-Hz power system consists of two interconnected areas. Area 1 has 2000 MW of total generation and an area frequency response characteristic of 700 MW/Hz. Area 2 has 4000 MW of total generation and an area frequency response characteristic of 1400 MW/Hz. Each area is initially generating one-half of its total generation at 50 Hz and with tie line flow at 50 MW (from area 2 to area 1) when the load in area 1 suddenly increases by 100 MW.

6.1 Determine the steady-state frequency error ?f and the contribution of the two areas to the additional (100 MW) demand.
-0.0476 Hz; 33.33 MW; 66.67 MW

6.2 If, following the load increase of 100 MW, the tie-line is suddenly opened as a result of a fault, determine the new steady-state frequencies for the two areas.
50.06 Hz, 49.74 Hz

A 50-Hz power system consists of two interconnected areas. Area 1 has 2000 MW of total generation and an area frequency response characteristic of 700 MW/Hz. Area 2 has 4000 MW of total generation and an area frequency response characteristic of 1400 MW/Hz. Each area is initially generating one-half of its total generation at 50 Hz and with tie line flow at 50 MW (from area 2 to area 1) when the load in area 1 suddenly increases by 100 MW.

6.1 Determine the steady-state frequency error ?f and the contribution of the two areas to the additional (100 MW) demand.
-0.0476 Hz; 33.33 MW; 66.67 MW

6.2 If, following the load increase of 100 MW, the tie-line is suddenly opened as a result of a fault, determine the new steady-state frequencies for the two areas.
50.06 Hz, 49.74 Hz

Added by Esther H.

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