Project Based Learning (EEE4117) Title: Motor Control with DC-DC Converter in Light Rail A light railway line is fed fro

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Project Based Learning Eee4117 Title Motor Control With Dc Dc Converter In Light Rail A Light Railway Line Is Fed Fro 1 (50.54 KiB) Viewed 36 times

Project Based Learning (EEE4117) Title: Motor Control with DC-DC Converter in Light Rail A light railway line is fed from a 750 V DC bus, and a train is driven by a 600 V series DC motor with full speed of 100 kph. With the operating condition and motor parameters given in Table 1. you are required to evaluate (40%) the supply line current in the speed range of 0 ≤ Vip ≤ 100kph the switching on time of the chopper in the speed range of 0 Vip 100kph the motor torque at maximum train speed. the duty cycle of chopper at regenerative braking. the return power to the supply at regeneration in part (d). (Hint: Train speed(kph) = 0.1885 x N(rpm) X diameter of wheel(m)) b. CL d. Traction Supply Supply line Voltage Train Range of line speed Viph Wheel diameter DC Machine Type of Motor Field Resistance R Armature Resistance R Rated Current I Rated Voltage Va Armature current at standstill Mechanical loss at rated speed (Maximum train speed) Driving Unit Type of Converter Efficiency of train at standstill Efficiency of train at maximum speed Switching frequency (0 ≤Vph ≤ 100kph) Braking Regenerative braking Table 1 750 V D.C. 0 Vp ≤ 100kph (max) 589mm Series 0.02 € 0.06 180 A 600 V 200 A 2% DC-DC Converter 90% 84% 100 Hz-1250Hz Achieve at 80% maximum train speed