
367Electric Power Production and Transmission Simulation
the ballast load controller limits the ω reference value by 35 rad/s. Furthermore, with V
w
lessening, the WG power P
m
and the load power P
e
decrease in four steps: P
m
/P
e
(kW) =
75/67, 58/50, 34/28, 18/12 (the load power is more than values given previously, because
the latter are specied for the voltage of 220 V; in fact, the voltage of 230 V is held).
At t = 24 s V
w
decreases to 5 m/s, WG stops production of electric energy, and the output
power is provided by the battery.
The DC link voltage remains at the level of 500 V rather precisely till V
w
= 5 m/s,
the rms of the phase-to-phase ...