CONFERENCE / ICISDG’23

A dc-dc converter is essential for Solar PV system to step up the low voltage from Solar panel/array to required voltage. In Solar PV system, the dc-dc converter will be buck-boost or boost converter. Many new boost converters are derived nowadays. In these, one of the modern converters is quadratic boost converter. Boost converters are required to operate with high duty ratio to achieve the higher output voltage. This high duty ratio limits the switching frequency because of high reverse recovery time, also it results poor efficiency and electromagnetic interference. In existing boost converters, the switches are suffered with high voltage stress. This project doesn't consider the electromagnetic interference but rest of the issues are taken care by incorporating Capacitor, Inductor, Diode (CLD) with the Quadratic boost converter. This quadratic boost converter with CLD is compared with other boost converters. In this proposed converter high output voltage is obtained with low duty ratio. Thus, it eliminates the problem of high reverse recovery time and limitation in using high switching frequency. It also reveals that the efficiency of the quadratic boost converter with CLD cell is higher than other boost converters and voltage stress is drastically reduced for the same output. Therefore, quadratic boost converter with CLD cell is well suited for solar PV applications.