(6) Repeat steps 2~5 until the length of one principal
tie line is zero, and the corresponding pressure at this time is MMP
The above equation gives the
tie line power between area 1 to 2.If any deviation in the angle and the
tie line power changes with the amount i.e.
The optimized FOPID controller minimizes the frequency and
tie line deviations faster as compared to tuned PID controller.
Figure 7 shows the active power oscilloscope record of the second Long-Dou
tie line during the power oscillation.
The power system investigated in this work contains three area thermal power systems interconnected through the
tie line as shown in Figure 1.
The phase volume ratio, [PHI], can be estimated from the triangular phase diagram by the
tie line and lever rule (11), as shown in Fig.
The various frequency deviations and
tie line power deviations in thermal area 1 and hydro area 3 without presence of GRC are shown in the figures.
Plant Integration Associates Inc., in Port Chester, will provide turnkey installation of a tray sortation system, from the last strapper on each
tie line to the truck loaders.
At a user level, or system level, the gateway should function like a PBX
tie line or digital trunk.
"Each
tie line has a stacker, a three-quarter-wrap labeler, a cross-tying system, a cross over belt and a telescoping truck loader," King said.