ABSTRACT – The improvement in the efficiency, a reduced ripple and reduction in the passive elements is proposed in this project through the interleaved boost converter. The interleaved boost converter operates multiple phase approach, is used for the power factor control applications. The proposed converter is used to extract the power output from the solar panel with reduced ripple losses and greater efficiency thereby obtaining the maximum power from the solar panel. The control of the current with energy saving method is obtained with the efficiency of 95%. The converter operation is controlled by the fuzzy logic controller to operate the switches with the finest and reduced power loss constrains. The proposed method is mathematically modeled and the results are analysed. The simulation is carried out in MATLAB/Simulink software.
INTRODUCTION
The scarcity of fossil fuels and the rising threat of global warming have recently emerged as major worldwide concerns. Electric vehicles (EV) are the most reliable and practical solution for complying with increasingly strict environmental standards. The vast majority of these vehicles are equipped with battery packs that can be used to power electric automobiles [1]. In modern EV chargers, power control components such as DC-DC converters, which provide a direct current link between the battery and the inverter circuit, are included [2,3]. In the automotive, aerospace, industrial, and propulsion industries, the three-phase Interleaved Step-up DC-DC Converter (ISC) is well suited for battery applications. In order to store the energy required to provide the necessary torque and speed, electric cars are equipped with large-capacity batteries [4]. Topologies of DC-DC converters for electric vehicles include the Boost Converter, Buck Converter, Interleaved Converter, and others [5,6]. Because of the downsizing capabilities of battery packs, they are frequently used in a variety of applications. As a result, the output voltage ripple, voltage stress, voltage gain, and efficiency are all reduced [7–9], and the voltage gain and efficiency are all raised. The most active research field in industrial and automation is fuzzy logic control (FLC). Unlike other control methods, FLC works best on complex, ill-defined issues that can be controlled by human experts. As a result, it provides a system with a double advantage. In addition to lowering the total cost, fuzzy enhances voltage regulation while simultaneously reducing complexity [10,11]. By modifying the duty cycle of the proposed ISC Converter, fuzzy was used to regulate the output voltage ripple and reduce the losses of the proposed ISC Converter. Consequently, it has a higher level of precision and efficiency. The current topology of the interleaved converter is quite similar to that of a single-phase boost converter, which has been utilized in electric vehicles in the past. Once the battery packs have been decreased, the rated voltage [12–14] will be reduced as well. Due to a lack of capability, the single-phase interleaved converter is incapable of supplying sufficient voltage to the transmission system (electric motor) due to a lack of capability [15,16]. Among the topology’s features is the incorporation of a three-phase interleaved boost converter, which assists in the downsizing of battery packs while also supplying sufficient voltage to the electric motor [17].