Optimization Method to Maximize Efficiency Map of a Drive Motor With Electrical Winding Changeover Technique for Hybrid EV

Jung, Ho-Chang; Kim, Deok-Jin; Jung, Sang-Yong; Lee, Dong Su

doi:10.1109/tasc.2020.2987016

Cited by 12 publications

(4 citation statements)

References 15 publications

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“…To prevent this problem, the range of V * is usually limited to the C-inscribed circle. As shown in (1), this limitation reduces the maximum value of the phase voltage that can be output from the inverter by V phase,decrease thereby reducing the maximum speed of the loaded motor drive.…”

Section: Effects Of Dc-link Voltage Ripple and Relationship With Swit...mentioning

confidence: 99%

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Novel Variable Switching Frequency PWM Strategy for a SiC-MOSFET-Based Electric Vehicle Inverter to Increase Battery Usage Time

2022

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In this study, a novel variable switching frequency pulse width modulation (VSFPWM) strategy is proposed to achieve improved electric vehicle inverter efficiency. The silicon carbide (SiC) MOSFET inverter has excellent switching characteristics, thus enabling pulse width modulation control with a high switching frequency. The high switching frequency can reduce the voltage ripples in DC-link capacitors, which enables their use at a reduced capacitance. The switching frequency is typically set to a level that is within the limits of the voltage ripple in the maximum output region. Given that the same switching frequency is applied to the entire operating region, there is a sufficient margin with respect to the limits of the voltage ripple in the low-to-medium output range. The proposed method is designed to consider the real-time minimum switching frequency by considering the voltage ripple of the capacitor during operation under loaded conditions, thereby minimizing the switching loss. In addition, the method is suitable for highswitching frequency control because the calculation time is short. Because it does not require additional hardware, it is easy to apply to the existing inverter. The validity of the proposed method was verified based on simulations and experiments.

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Section: Effects Of Dc-link Voltage Ripple and Relationship With Swit...mentioning

confidence: 99%

“…Because of the problems associated with air pollution from the emissions of internal combustion engine vehicles, electric vehicles (EVs), which are eco-friendly alternative means of transportation, have drawn attention as a solution to environmental problems [1]- [3].…”

Section: Introductionmentioning

confidence: 99%

Novel Variable Switching Frequency PWM Strategy for a SiC-MOSFET-Based Electric Vehicle Inverter to Increase Battery Usage Time

2022

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“…Electric vehicles have become a hot research and development topic for governments and scholars around the world due to their advantages of low pollution and zero emissions. However, as one of the key parts of electric vehicles, the output characteristics of the drive motor directly determine the overall performance of electric vehicles [1][2][3]. With the increasing pursuit of driving comfort and power, the development of electric drive systems with high performance, high efficiency and high torque density has become an important way to improve the power performance and driving range of electric vehicles [4,5].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Multi-Objective Optimization Design of Interior Double Radial and Tangential Combined Magnetic Pole Permanent Magnet Drive Motor for Electric Vehicles

Ma,

Chen,

Zhang

2024

WEVJ

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A new type of interior combined pole permanent magnet drive motor is proposed in this paper, which aims to improve the power and comfort of electric vehicles. In view of the complex magnetic circuit structure and rich harmonic magnetic field of the motor, the initial magnetic pole parameters of the rotor are determined by the equivalent magnetic circuit method. Then, aiming at the complex magnetic circuit and rich harmonic magnetic field, a multi-objective optimization method based on the Taguchi method and response surface method is proposed to reduce the cogging torque, high harmonic content in air gap magnetic flux density and increase the output torque. Based on the finite element analysis of the electromagnetic performance of the new type interior combined magnetic pole permanent magnet drive motor before and after optimization, it can be seen that the improved rotor structure can effectively reduce the torque ripple and increase the torque density. Finally, a prototype was developed and experiments were conducted, and experimental results verified the correctness of the proposed multi-objective optimization algorithm.

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“…The efficiency of the electric motors is in the middle of the efficiency chain of the EV powertrains. Diverse research continues to find solutions for better performance [10][11][12][13][14][15][16][17][18][19]. In the actual analysis, the method presented in [20] is detailed in a new specific case of efficiency maps constitution, continuing the experience in previous research [21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Energy Consumption Analysis for an Ev Powertrain Using Three BLDC Identical Motors

POPESCU,

CRAIU

2023

RRST-EE

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Using more than one motor in an EV (Electric Vehicle) powertrain enhances the vehicle’s torque, acceleration, and speed capabilities. A more tractive force produced by the electric powertrain requires more electric current from the battery. In modern EVs, mechanical power production can be approached to the wheels reducing the mechanical losses in the transmissions. It is the case with multiple-motor powertrains. Several advantages regarding vehicle control, physical performance, and energy efficiency improvement are obtained. In the current study, a BLDC (brushless dc) motor is investigated from the efficiency point of view to build a multiple-motor powertrain. A new methodology uses analytic calculations, simulations, and physical measurements. A powertrain with three identical motors results in a new vehicle configuration. Each motor's energy consumption improvements are analyzed following a normalized testing procedure. The results are compared with those of a single-motor powertrain.

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Optimization Method to Maximize Efficiency Map of a Drive Motor With Electrical Winding Changeover Technique for Hybrid EV

Cited by 12 publications

References 15 publications

Novel Variable Switching Frequency PWM Strategy for a SiC-MOSFET-Based Electric Vehicle Inverter to Increase Battery Usage Time

Novel Variable Switching Frequency PWM Strategy for a SiC-MOSFET-Based Electric Vehicle Inverter to Increase Battery Usage Time

Analysis of Multi-Objective Optimization Design of Interior Double Radial and Tangential Combined Magnetic Pole Permanent Magnet Drive Motor for Electric Vehicles

Energy Consumption Analysis for an Ev Powertrain Using Three BLDC Identical Motors

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