Publication: Effects of zeta converter parameters on the performance of an electric vehicle
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Date
2023-08
Authors
Anis Mazni binti Roslim
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Abstract
Nowadays, the modern transportation system, electric vehicles (EVs) are being widely developed for various reasons. The adoption of EVs, particularly battery
electric vehicles, is seen as a remedy for the energy crisis and environmental problems. However, because the battery storage of EVs varies their output voltage with load, the high output voltage will create major challenges on the performance of electric vehicles. Therefore, the DC-DC converter is needed to improve the performance of EVs by boosting or chopping the voltage levels. The Zeta converter is a fourth order DC-DC converter which works as a buck-boost converter to provide a regulated output voltage from an input voltage that fluctuates above and below the output voltage value. For good voltage regulation and stable operation of this converter for the better performance of EVs, a feedback control design is necessary. The PI controller is often used in the feedback control operation to correct the error between the measured output voltage and desired output voltage. Zeta converter in closed loop shows better performance than open loop. Therefore, this paper deals with the implementation of closed loop Zeta converter with PI controller and the effects of its parameters which are output voltage ripple, output current ripple, power, peak overshot, and transient response on the performance of electric vehicle. The performance of the proposed converter is also tested for load variation conditions, where the load is stepped up and stepped down from the full load. The simulation-based project is done by using MATLAB R2022b software.