Voltage Mode Stability Control for Double Boost DC-DC Converter Using Digital PID Controller Based on FPGA

Abstract

The advanced boost DC-DC converter is used to overcome the low performance of boosting factors of traditional boost converter to get the stable and high output voltage from PV modules and other renewable sources. The application of Max-10 FPGA based PID controller development approach in double boost converter is presented to reduce system delay time and the output voltage ripples. This research is mainly focused on voltage-mode control in Continuous Conduction Mode (CCM) of the proposed converter. The proposed converter output under the PID controller is stable to manage the output voltage or to get the desired output voltage if the input voltage is changing. As the new finding result, if the two inductors' values of the proposed converter are the same, the switching frequency must be different and if the two inductors' values are different, the same switching frequency can be used for only this research. The same frequency of the two switches for two PWM modules is set 24 kHz to control the switch ON/OFF state in which the ripple voltage is about between 2.36% and 4.68%.