NON-ISOLATED BI-DIRECTIONAL CONVERTERS WITH COUPLED INDUCTOR (NBDCCI ) FOR HYBRID ELECTRIC VEHICLE ( HEV) APPLICATIONS

摘要

A Controller with good regulation characteristics for BDC (Bi Directional DC- DC Converters) is provided. Also, the Controller has reduced ripple content in the output voltage/current with improved dynamic behavior. The proposed controller techniques has been achieved by using Non-isolated BDC using coupled inductor (NBDCCI). NBDCCI is identified as the most sought after module for HEV (Hybrid Electric Vehicle) applications among the various types of converters. The proposed techniques discussed can be implemented in Microgrid systems. The investigations can be expanded by introducing advanced SCT based controllers for BLDC fed drive systems. The motor drive should have high performance while designing for HEV applications. This can be achieved by implementing a BDC. The tasks have been completed in this work are listed as follows. And, the Three different types of bidirectional DC-DC converters (NBDC, NBDCCI and IBDC) have been analysed. Incorporated ZVS-PWM technique to reduce ripple losses in the converter..