Figure 1 shows that a 140 kW low-speed turbine unit is driving a 4 pole, 50...
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Figure 1 shows that a 140 kW low-speed turbine unit is driving a 4 pole, 50 Hz, asynchronous generator with the help of gearbox where the speed ratio is 26. The drive train parameters including turbine and generator are given in the Table shown below. Determine the followings showing all calculation steps and equations. i) The inertia constant of generator in per unit ii) The inertia constant of turbine in per unit iii) The inertia constant of gearbox in per unit iv) Low speed shaft stiffness in per unit v) High speed shaft stiffness in per unit Parameter JT JGB JG KTGB KGBG JT T KLS N₁=57.69a58 Jan G B KHS NHS=1500 N=26=Gearratio=N/NL Ja Value 21125 kg.m² 882.77 kg.m² (low speed side) 2.3 kg.m² Non-linear. Typical value: 3.0x105 Nm/rad 1.4867x10¹ Nm/rad G Fig. 1. Three mass drive train of wind turbine generator system Table. Parameters of the drive train Figure 1 shows that a 140 kW low-speed turbine unit is driving a 4 pole, 50 Hz, asynchronous generator with the help of gearbox where the speed ratio is 26. The drive train parameters including turbine and generator are given in the Table shown below. Determine the followings showing all calculation steps and equations. i) The inertia constant of generator in per unit ii) The inertia constant of turbine in per unit iii) The inertia constant of gearbox in per unit iv) Low speed shaft stiffness in per unit v) High speed shaft stiffness in per unit Parameter JT JGB JG KTGB KGBG JT T KLS N₁=57.69a58 Jan G B KHS NHS=1500 N=26=Gearratio=N/NL Ja Value 21125 kg.m² 882.77 kg.m² (low speed side) 2.3 kg.m² Non-linear. Typical value: 3.0x105 Nm/rad 1.4867x10¹ Nm/rad G Fig. 1. Three mass drive train of wind turbine generator system Table. Parameters of the drive train
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Related Book For
Differential Equations and Linear Algebra
ISBN: 978-0131860612
2nd edition
Authors: Jerry Farlow, James E. Hall, Jean Marie McDill, Beverly H. West
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