Experimental Verification of a Generalized Control Method for Constant Switching Frequency Three Phase Pwm Boost Rectifier under Extremely Unbalanced Operating Conditions
Date of Award
Master of Science in Electrical Engineering
Electrical and Computer Engineering
Stankovic, Ana V.
This thesis presents experimental verification of a generalized control method for constant switching frequency Three-phase PWM Boost Type Rectifier under extremely unbalanced operating conditions in the power system. In this model, a hysteresis current controller has been implemented using a high-speed micro-controller to generate the gate signals. Even though a constant switching frequency was achieved in the previous model, while in simulation using MATLAB/Simulink, it wasn’t achieved experimentally due to the low processing speed of the DSpace processor ds1104. This problem has been resolved by using the “C2000 Delfino MCUs F28377S Launchpad ” from Texas Instruments to implement Hysteresis Current Controller that generate the gate signal of the three-phase PWM boost rectifier. The model has been verified to work under the conditions of extremely unbalanced input voltages and unbalanced input impedances with constant switching frequency in closed-loop and open-loop control.
Krishnan, Divin Sujatha, "Experimental Verification of a Generalized Control Method for Constant Switching Frequency Three Phase Pwm Boost Rectifier under Extremely Unbalanced Operating Conditions" (2017). ETD Archive. 1028.