Luo converters are a type of DC-DC converter used in power electronics applications. These converters are designed to increase or decrease the voltage of a DC power source while maintaining a stable output voltage. Luo converters are especially useful in applications that require high output voltages, such as in electric vehicles.
Luo converters operate by using a combination of inductors and capacitors to regulate the output voltage. These converters work by storing energy in the inductor during the off state of the switching device and releasing it during the on state. This process creates a noise-free output voltage, which is essential for efficient and reliable operation in electric vehicles.
The fuzzy logic controller plays an important role in controlling the Luo converter. It generates a voltage that matches the feedback voltage, ensuring the system operates optimally. This control mechanism allows the Luo converter to maintain a stable output voltage, even from varying input voltages. The ability of the fuzzy logic controller to adapt to changing conditions ensures the system operates efficiently and effectively.
Fuzzy logic controller-based Luo converter for light electric vehicles
This article highlights a study by Balamurugan et al. (2024) that proposes a fuzzy logic controller-based Luo converter for light electric vehicles. This innovative system aims to improve the performance of electric vehicles by using brushless DC (BLDC) motor drives supplied by Luo converters. The main features of the system include:
- Stable output: Luo converters provide stable and noise-free output for electric vehicles, which is essential for efficient and reliable operation.
- Fuzzy logic controller: the fuzzy logic controller plays an important role in controlling the Luo converter. It generates a voltage that matches the feedback voltage, ensuring the system operates within the most optimal parameters.
- Advantages: the proposed system offers several advantages, including:
- Voltage boost: the system can increase the output voltage, which is beneficial for electric vehicles that require higher power.
- High gain output with low noise: the system provides high gain output with minimal noise. The system ensures efficient energy transfer and reduces losses.
- High efficiency: the system operates with high efficiency, which is essential for electric vehicles to maximize their range and minimize energy consumption.
- Testing and comparison: the performance of the proposed drive is tested through hardware prototypes at various line voltage levels. The results are compared to demonstrate the proposal regarding the effectiveness of EV motors fed with Luo converters and highlight its potential for practical application in electric vehicles.
A brushless DC motor (BLDC) drive fed by a Luo converter is presented in this paper for the use in electric vehicle (EV) applications. The proposed Luo converter provides stable and ripple free output for EV. An approach for getting the stable output voltage is by using a fuzzy logic controller to control the Luo converter. It helps to generate the appropriate pulse with respect to the feedback voltage. This proposed system has the advantages like voltage increase, high-gain output with low ripples and high efficiency. The performance of this proposed drive is tested through hardware prototype at varying line voltage levels and results are demonstrated. A comparative analysis is presented to justify the effectiveness of the proposed Luo converter fed EV motor.
Fuzzy logic controller-based Luo converter for light electric vehicles
Rangaswamy Balamurugan, Komarapalayam Subramaniam Vairavel, Marimuthu Kalimuthu, Veerappan Kiruthiga Devi
R. Balamurugan, K. S. Vairavel, M. Kalimuthu, and V. K. Devi, “Fuzzy logic controller-based Luo converter for light electric vehicles,” Indonesian Journal of Electrical Engineering and Computer Science (IJEECS), vol. 34, no. 1, pp. 641–646, Apr. 2024, doi: 10.11591/ijeecs.v34.i1.pp641-646.
By: I. Busthomi
