Transformerless DVR Super Capacitor Based Induction Motor Drive Applications

In modern power distribution systems power quality is considered as a major factor. For the fulfillment of industrial goals, modern industries are looking forward for new innovative technologies. The key requirement in any utility work is a disturbance free continuous power supply. The high quality power generated at the power stations are not delivered in the same form at the utility centers. This is mainly because of the widespread use of power electronic devices which introduced harmonics and other nonlinearities to the systems. The paper describes the application of super capacitor energy storage system for induction traction drive test bench that replaces a real electric public transport for performing testing and researches. The suitability and usage of such bench for research purposes is explained and the importance of the development of software mathematical model for performing simulations to be done before physical implementation measures is reasoned. The working principle of the bench and applied components are described. A virtual model of the bench was built and simulations were performed using Matlab/Simulink software. This concept results shows the superiority of the developed topology in voltage compensation capability and reliability. The proposed DVR has provided a regulated and sinusoidal voltage across the sensitive load.