Phase-Redundant-Based Reliable Direct AC/AC Converter Drive for Series Hybrid Off-Highway Heavy Electric Vehicles

Kwak, Sangshin; Kim, Tae-Hyung; Park, Gwangmin

doi:10.1109/tvt.2010.2050792

Cited by 34 publications

(5 citation statements)

References 15 publications

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“…where K T =1.5Pψ PM is the torque constant, ω e * is the angular frequency of stator current output by the generator, and J is the moment of inertia of the motor. From (12), the approximate analytical solutions of torque angle and speed can be solves as 0 ( ) cos( ) 1…”

Section: Figure 2 Structure Diagram For I-f Control System Figure 3 Phasor Diagram Of I-f Control System and Its Oscillation Processmentioning

confidence: 99%

“…The failures of in-wheel drive systems usually involve the in-wheel motor faults [10][11], the power inverter faults [12], and the sensor faults [13][14]. Considering the sensor faults, the position sensors such as the resolver, hall-sensor, or photoelectric encoder used in vehicles are easily disturbed by mechanical impact, moisture corrosion, and electromagnetic interference, resulting in signal loss or measurement deviation.…”

Section: Introductionmentioning

confidence: 99%

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Fault Tolerant Sensorless Control Strategy With Multi-States Switching Method for In-Wheel Electric Vehicle

Wang

Shao

2021

IEEE Access

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The in-wheel electric vehicle with distributed drive units has better stability and flexibility than traditional centralized drives, but may encounter a higher failure rate due to additional actuators and sensors, especially that the faults of the wheel-side position sensor make motor torque out of control. To overcome this problem, a fault-tolerant control strategy with a multi-states switching method is proposed. The strategy judges the sensor failure by verifying redundant speed information, realizes sensorless control schemes by flux-observer based algorithm in high-speed range and I-F control algorithm in low-speed range with low acoustic noise, and applies adaptive transition process between different control schemes. To pursuit high stability, the signal-to-noise analysis for fault judgment due to sensorless estimation accuracy is discussed. Meanwhile, the principle of I-F resonant oscillations during the transition process is initially deduced in detail, and the conclusion of stability condition is obtained. Finally, the influence of system parameters on resonance performance is analyzed by simulation, and the effectiveness and reliability of the proposed strategy for the risk-controlling process are verified by experiments.

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Section: Figure 2 Structure Diagram For I-f Control System Figure 3 Phasor Diagram Of I-f Control System and Its Oscillation Processmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fault Tolerant Sensorless Control Strategy With Multi-States Switching Method for In-Wheel Electric Vehicle

Wang

Shao

2021

IEEE Access

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“…The torque delivered at the transmission or differential is amplified proportional to the gear ratio. The relation for motor torque (T m ), drive shaft torque (T dr ), and motor angular acceleration (ώ m ) is given as (1) The torque of drive axle (T axle ) is amplified by the differential gear ratio (G df ) with slight reduction due to the inertia as (2) Furthermore, the vehicle drive acceleration is dependent, based on the 2nd law of Newton, on the motor angular acceleration, the wheel radius (R w ), power transmission efficiency (κ), and the gear ratios as (3) From the equation ( 1), (2), and (3), the final wheel torque (T w ) is obtained as:…”

Section: Mathematical Modeling Of Ev Dynamicsmentioning

confidence: 99%

“…Electric vehicles constitute the only commonly known group of automobiles, which qualify as Zero Emission Vehicle (ZEV). These vehicles depend on advanced electronically-controlled systems, such as high-power inverters and electrical motors, to achieve propulsive forces [2][3]. Consequently, the powertrain system of the electric vehicle, consisting of battery, inverter, motor, and transmission, has direct effects on the vehicle performance and dynamics As a result, the powertrain dynamics model of such complex components enables the insight into the dynamic outputs of the vehicles.…”

Section: Introductionmentioning

confidence: 99%

Modeling and Analysis for Powertrain Dynamics of Electric Vehicle Systems

Park

Lee

Jin

et al. 2011

AMM

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This paper provides presents the dynamic analysis and computer simulation results of electric vehicle (EV) powertrain performance systems. The generic simulation platform of an electric vehicle is developed using based on the SimPowerSystems/SimDriveline of MATLAB. Individual components of the model are constructed based on real vehicle data and mathematical dynamic model equations. The analytic results obtained from the mathematical modeling are verified with electric vehicle dynamics using generic simulation platform.

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“…The CO and NOx emissions were reduced by 0% compared with conventional models, together with a 25% improvement in fuel economy [3]. The three main types of hybrid electric TTDs are the series hybrid, parallel hybrid, and power-split hybrid.…”

Section: Introductionmentioning

confidence: 99%

Optimal Design of a Novel Hybrid Electric Powertrain for Tracked Vehicles

Qin

Luo

et al. 2017

Energies

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Tracked vehicles have been widely used in construction, agriculture, and the military. Major problems facing the industry, however, are high emissions and fuel consumption. Hybrid electric tracked vehicles have thus become increasingly popular because of their improved fuel economy and reduced emissions. While the series hybrid system has drawn the most attention and has been applied in most cases, the low efficiency caused by energy conversion losses and large propulsion motors has limited its development. A novel multi-mode powertrain with two output shafts controlling each side of the track independently is first proposed. The powertrain is a three-planetary-gear power-split system with one engine, three motors, and an ultracapacitor pack. Compared with the existing technologies, the proposed powertrain can realize skid steering without an extra steering mechanism, and significantly improve the overall efficiency. To demonstrate the advantages of the novel powertrain, a topology-control-size integrated optimization problem is solved based on drivability, fuel economy, and cost. Final simulation results show that the optimized design with downsized components can produce about a 30% improvement in drivability and a 15% improvement in fuel economy compared with the commonly used series hybrid benchmark. Moreover, the optimized design is verified to be much more economical taking cumulative cost into account, which is very attractive for potential industrial applications in the future.

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Phase-Redundant-Based Reliable Direct AC/AC Converter Drive for Series Hybrid Off-Highway Heavy Electric Vehicles

Cited by 34 publications

References 15 publications

Fault Tolerant Sensorless Control Strategy With Multi-States Switching Method for In-Wheel Electric Vehicle

Fault Tolerant Sensorless Control Strategy With Multi-States Switching Method for In-Wheel Electric Vehicle

Modeling and Analysis for Powertrain Dynamics of Electric Vehicle Systems

Optimal Design of a Novel Hybrid Electric Powertrain for Tracked Vehicles

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