• Vrishali Sanjay Bhutkar
• Dr. Mrs. Haripriya H. Kulkarni Member

This paper is proposed to review the progress of active power filter (APF) technologies that are usually used to mitigate harmonics in utility power lines. Cascaded H-bridge (CHB) multilevel inverters have been conceiving as an option to decrease total harmonic distortion (THD) in medium-voltage drives. The reduced THD makes them useful for electric vehicle (EV) applications, but the main problem with the CHB is the large quantity of isolated power sources necessary to feed each of the H-bridges. An better variant known as the asymmetrical CHB (ACHB) inverter uses H-bridges of different sizes and then needs fewer isolated power sources than the CHB. However, in battery-powered EVs, simply one power supply (petroleum cell or battery pack) is attractive. This work presents a solution to solve the problem, in service some of the small H-bridges (Aux-bridges) as series active filters and using a small high-frequency link (HFL).With this result, only one dc basis is necessary to feed the inverter, and if the organize is adjusted to work at particular switching points, more than 98% of power is transferred throughout the larger H-bridges (MAIN bridges). An development for drive application has permitted to decrease the number of power supplies using floating capacitors, unidirectional power sources, and a pulse width modulator (PWM) that jumps some voltage steps. However, the number of self-determining power sources is only partially reduced. In electric vehicles battery pack is uses to provide power to electric motors. Battery is dc supply. Inverter is converted DC to contaminated AC supply having huge harmonics, these harmonics reduces the effectiveness of electric motor that as electric vehicle. This work shows some MATLAB imitation of inverter has done 21 levels. This imitation gives approximate output. As a result, THD decrease.

AC Motor Drives; Cascaded H-Bridges (CHBs); Electric Vehicles (EVs)

"To Study Electric Vehicles Using a Single Battery Pack and Active Filters ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.7, Issue 2, page no.1131-1139, February-2020, Available :http://www.jetir.org/papers/JETIR2002163.pdf

"To Study Electric Vehicles Using a Single Battery Pack and Active Filters ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.7, Issue 2, page no. pp1131-1139, February-2020, Available at : http://www.jetir.org/papers/JETIR2002163.pdf