This work focuses on the fuzzy controller for the proposed three-phase interleaved Step-up converter (ISC). The fuzzy controller for the proposed ISC converters for electric vehicles has been discussed in detail. The proposed ISC direct current (DC-DC) converter could also be used in automobiles, satellites, industries, and propulsion. To enhance voltage gain, the proposed ISC Converter combines boost converter and interleaved converter (IC). This design also reduces the number of switches. As a result, ISC converter switching losses are reduced. The proposed ISC Converter topology can produce a 143 V output voltage and 1 kW of power. Due to the high voltage gain of this converter design, it is suitable for medium and high-power systems. The proposed ISC Converter topology is simulated in MATLAB/Simulink. The simulated output displays a high output voltage. But the output voltage contains maximum ripples. Fuzzy proposes an ISC Converter which makes closed loop responsiveness and reduces the output voltage ripple. The proposed ISC converter has the lowest ripple output voltage, which is less than 2%, because the duty cycle is regulated using the fuzzy logic controller. It offers high voltage gain, minimal ripple, and low switching loss. The performance of the proposed converter is compared to that of the fuzzy and Proportional Integral (PI) controllers implemented in MATLAB.

Due to the increasing number of direct current (DC) loads in electric vehicles (EVs), DC–DC converters are widely used in EV applications. Hence, a DC distribution system with DC–DC converters is more efficient. A three-phase interleaved step-up DC–DC converter (ISC) has been proposed for use in electric vehicles. Other uses of the proposed ISC converter include aircraft, satellites, industrial, and traction drives. The proposed converter is subjected to a thorough frequency response study, which is explained in detail. The design technique recommends the proper quantity of switches to be used in the system. The reduction in the number of switches results in a 94% increase in the efficiency of this converter. The economic aspects of ISC, such as cost analysis and its procedure, have been discussed. Design models were checked using MATLAB/Simulink, which was interfaced with the real-time simulator OPAL-RT (OP5700) to ensure that they were appropriate. The results have been presented in detail.

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