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To view the PowerWorld Simulator bus admittance matrix, select the Case Information ribbon, then Solution Details, Ybus. Initially, the off-nominal turns ratio is set to the value in part (a) of the example (Power World has the off-nominal turns ratio on the load side so its tap value of 1.05 c1). #Power world simulator case two bus power system generator#In this case, the transformer and a parallel transmission line are assumed to be supplying power from a 345-kV generator to a 345-kV load. #Power world simulator case two bus power system series#For the phase-angle-regulating transformer, c-1La-1元9 Then, for this regulating transformer in series with line L1, 0.25 4.0 ❒LI = 110/-3012( 4.0)- 4.0 (1.0/-30(-j4.0)- 4.087-0.2093 +j3.9945 Yu.-(1.0/-30)*(-/4.0) = 4.0/93° =-0.2093 + β.9945 21L The admittance parameters for line L2 alone are given in part (a). Simulation of Some Power System, Control System and Power Electronics Case Studies Using Matlab and PowerWorld Simulator. Forthe voltage-magnitude-regulating transformer, c = (1+AV)-(1.05)-1 0.9524 per unit. SOLUTION The circuit is shown in Figure 3.29. This circuit configuration is fairly uncommon. It is characterized by delta configured, all line segments are underground, substation voltage regulation is two single-phase open-delta regulators, spot loads, and very unbalanced. Also, the series resistance and shunt admittance of the lines are neglected. 37-bus Feeder : This feeder is an actual feeder in California, with a 4.8 kV operating voltage. Assume that the regulating transformer is ideal. Determine the 2 X 2 bus admittance matrix when the regulating transformer (a) provides a 0.05 per-unit increase in voltage magnitude toward bus a'b'c'and (b) advances the phase 3° to ward bus a'b'c'. A regulating transformer is placed in series with line Ll at bus a'b'c'. What value of phase shift minimizes the system losses?ĮXAMPLE 3.13 Voltage-regulating and phase-shifting three-phase transformers Two buses abc and a'b'c' are connected by two parallel lines L1 and L2 with pos- itive-sequence series reactances XLI 0.25 and XL2-0.20 per unit. With the LTC tap fixed at 1.05, plot the real power losses as the phase shift angle is varied from -10 to +10 degrees. Since the system is no longer lossless, a field showing the real power losses has also been added to the oneline. With Bus Simulator 21 you can look forward to the fullest bus driving experience we have ever built.Transcribed image text: PW 3.60 PowerWorld Simulator case Problem 3_60 duplicates Example 3.13 except that a resistance term of 0.06 per unit has been added to the trans- former and 0.05 per unit to the transmission line. If you do not feel like taking care of your company’s micromanagement and prefer to only drive, just like a true bus enthusiast, you can have the reliable AI handle all the planning tasks. Experience even more freedom with the game’s refined management systems, numerous new and expanded features, and the option of setting up detailed timetables for your own bus fleet for the first time ever. In case you are feeling homesick, you can still revisit Seaside Valley from the current Bus Simulator containing also the new districts provided with the Official Map Extension.Ĭreate and evaluate your own route network in the cooperative multiplayer and build up your transport empire together with your friends. Explore the industrial district, the peripheral areas, downtown or Chinatown in an even larger open world, and live your best life as a bus driver. ![]() The most modern vehicle fleet awaits you featuring the introduction of a double decker and electric buses for the very first time.ĭiscover Angel Shores, inspired by the sunny San Francisco Bay Area, and drive the American Dream in this fresh setting. Discover new officially licensed bus brands, fresh features as well as a brand-new open world set in the United States! Get ready for the richest game of the series to date with numerous officially licensed buses by world-famous brands such as Alexander Dennis. ![]()
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