부산대학교 도서관

In this era we can see that most of the things running without connection like connection less motors Taking a main role from that, the PMBLDCM (Permanent Magnet Brushless DC Motor) is developed. Here we introduce our Zeta converter to improve speed control and the power factor in such motors. In a continuous conductance mode called as CCM we can process both the power factor correction which is our main aim, and the voltage regulations are done. Also, the Zeta is used as the both buck and boost converter where it can be named as bidirectional converter where in the forward used as buck and the reverse is used as boost type of converters. DC link capacitors controls the speed of the Permanent magnet Brushless DC motors. DC link capacitors also eliminates the ripple torque of PMBLDC motors. The voltage source inverter is fed with rectified dc output from the capacitors. Inverted AC supply is given to the Brushless DC Motor. Driver circuit gives the gate pulses to the MOSFET switches. Here the MATLAB Simulink is used to get the circuit designs of the respective Zeta converter and the remaining functions such as BLDC motor and its output.