Related Experiment Video
Updated: Oct 20, 2025
06:04
Experimental Investigation of the Hierarchical Control in DC Microgrids Using a Real-time Simulator
Published on: February 14, 2025
708
A Bidirectional Versatile Buck-Boost Converter Driver for Electric Vehicle Applications
Catalina González-Castaño1, Carlos Restrepo2, Samir Kouro3
1Department of Engineering Sciences, Universidad Andres Bello, Santiago 7500971, Chile.
Sensors (Basel, Switzerland)
|September 10, 2021
Summary
This study introduces a novel bidirectional buck-boost converter for electric vehicle (EV) powertrains, enhancing efficiency across various speeds and driving conditions. The new converter ensures stable DC-bus voltage regulation during both motoring and regenerative braking.
Area of Science:
- Electrical Engineering
- Power Electronics
- Automotive Engineering
Background:
- Electric vehicle (EV) powertrains require efficient DC-bus voltage regulation for optimal performance.
- Traditional converters face challenges in high-voltage EV applications.
- Versatile buck-boost converters show promise but need adaptation for EV systems.
Purpose of the Study:
- To develop and validate a novel DC-DC bidirectional buck-boost converter for EV powertrains.
- To improve EV powertrain efficiency and extend operational range.
- To enable seamless operation under motoring and regenerative braking conditions.
Main Methods:
- Implementation of a versatile buck-boost converter architecture.
- Digital two-loop control strategy: discrete-time sliding-mode current control (DSMCC) and proportional-integral (PI) control.
- Utilizing a TMS320F28377S digital signal controller for control logic and mode transitions.
Main Results:
- Successful validation of the converter on a 400 V, 1.6 kW prototype.
- Demonstrated high-efficiency step-up/step-down capability.
- Verified performance through simulation and EV powertrain system testing.
Conclusions:
- The novel bidirectional buck-boost converter effectively regulates the DC-bus voltage in EV powertrains.
- The proposed digital control strategy ensures efficient operation across diverse driving scenarios.
- This technology contributes to enhanced EV performance and extended driving range.
Related Concept Videos
01:23Voltage Doubler Circuit
1.0K
A voltage doubler circuit integrates two main components: a clamping section and a rectifier section. The clamping section consists of a capacitor (C1) and a diode (D1), whereas the rectifier section is equipped with another diode (D2) and capacitor (C2). This circuit produces an output voltage with twice the amplitude of the sinusoidal input voltage.
1.0K
01:24Bridge rectifier
936
The bridge rectifier is essential in electronics for efficiently converting alternating current (AC) to direct current (DC). Comprised of four diodes configured in a bridge layout, this rectifier effectively processes both the positive and negative halves of the AC waveform, making it superior to half-wave and full-wave center-tapped rectifiers in terms of voltage regulation and output stability.
Operationally, the bridge rectifier allows current flow through two of its diodes during each...
Operationally, the bridge rectifier allows current flow through two of its diodes during each...
936
01:22Bipolar Junction Transistor
1.0K
Bipolar Junction Transistors (BJTs) are essential elements in electronic circuits, playing a crucial role in the functionality of amplifiers, memories, and microprocessors. These transistors can be designed as NPN or PNP based on their doping patterns. They consist of three layers: the emitter, base, and collector. The configuration of these layers and their respective doping levels—with N-type or P-type impurities—define the transistor's type and its operational...
1.0K
01:20Half wave rectifier
1.9K
A half-wave rectifier is a fundamental circuit in electronics, designed to convert alternating current (AC) voltage into a unidirectional voltage. It utilizes the simplest form of diode rectification, where the circuit comprises a single diode in series with a load resistor and an AC power source.
1.9K
01:21Generator Voltage Control
278
Generator voltage control is crucial for maintaining the stable operation of synchronous generators and wind turbines. In older models, a DC generator driven by the rotor delivers DC power to the rotor's field winding, and the power is transferred through slip rings and brushes. In the latest models, static or brushless exciters are used. Static exciters rectify AC power from the generator terminals and then transfer the DC power directly to the rotor. Brushless exciters, on the other hand,...
278
01:22MOSFET: Enhancement Mode
530
Enhancement-mode MOSFETs are pivotal components in electronics, distinguished by their capacity to act as highly efficient switches. They are part of the larger family of metal-oxide Semiconductor Field-Effect Transistors (MOSFETs). They are available in two types: p-channel and n-channel, each tailored to specific polarity operations.
In their basic form, enhancement-mode MOSFETs are typically non-conductive when the gate-source voltage (Vgs) is zero. This default 'off' state means no...
In their basic form, enhancement-mode MOSFETs are typically non-conductive when the gate-source voltage (Vgs) is zero. This default 'off' state means no...
530