Running Dynamics of Rail Vehicles

Kalivoda, Jan; Neduzha, Larysa O.

doi:10.3390/en15165843

Cited by 8 publications

(12 citation statements)

References 6 publications

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“…Asynchronous electric traction motors with a squirrel-cage rotor AD914U1 AД914У1) are used on DC-3 (ДC-3) electric locomotives. The technical characteristics of he AD914U1 electric traction motor are given in When investigating high-power electromechanical systems, it is reasonable to apply mathematical modeling methods [35][36][37]. This is primarily associated with the high costs of an investigation of a real-life system.…”

Section: Methodsmentioning

confidence: 99%

“…The technical characteristics of the electric locomotive are presented in Table 1 [20]. Asynchronous electric traction motors with a squirrel-cage rotor AD914U1 (A Thus, it is relevant to compare the characteristics of a vector system and the torque control of asynchronous electric motors of an electric traction drive, takin account the nature of the operation and operational features of an electric rolling s When investigating high-power electromechanical systems, it is reasonable to mathematical modeling methods [35][36][37]. This is primarily associated with the hig of an investigation of a real-life system.…”

Section: Methodsmentioning

confidence: 99%

“…Д s, it is relevant to compare the characteristics of a vector system and the direct ontrol of asynchronous electric motors of an electric traction drive, taking into the nature of the operation and operational features of an electric rolling stock. en investigating high-power electromechanical systems, it is reasonable to apply tical modeling methods [35][36][37]. This is primarily associated with the high costs estigation of a real-life system.…”

Section: Methodsmentioning

confidence: 99%

“…When investigating high-power electromechanical systems, it is reasonable to apply mathematical modeling methods [35][36][37]. This is primarily associated with the high costs Energies 2023, 16, 3689 3 of 30 of an investigation of a real-life system.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of the Efficiency of Traction Drive Control Systems of Electric Locomotives with Asynchronous Traction Motors

Goolak¹,

Liubarskyi

Riabov

et al. 2023

Energies

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An analysis of the operating conditions of the traction drives of an electric rolling stock with asynchronous traction motors was conducted. In the process of operation, the electric traction drive with both direct torque control and vector control was found to possibly experience unstable modes, both in terms of power supply and load. The models of electric locomotive traction drives with asynchronous electric motors with either vector or direct torque control were adapted to account for the possible presence of the aforementioned operational factors. As a result of the modeling, the starting characteristics of the electric traction drives with different control systems were obtained both in the absence and in the presence of power supply and load disturbances. The following cases were investigated for the drive with vector and direct torque control in the absence of power supply and torque disturbances: drive output at the rated speed of rotation of the electric motor shaft; 10% reduction in the rated speed; 10% increase in the rated speed. The comparison of the results obtained has demonstrated that, at lower than nominal frequencies, the electric traction drive with direct torque control has higher accuracy in its regulation of the rotational speed and torque, lower power consumption from the power supply, lower torque overshooting, but a higher level of torque pulsations than the electric traction drive with vector control. Meanwhile, at higher than nominal frequencies, the vector control has higher accuracy in its regulation of the speed, lower torque overshooting, shorter duration of transient processes, and lower torque pulsations than the direct torque control. Moreover, as a result of the investigations, the traction drive with direct torque control has been found to be more resistant to power supply and load disturbances. The results of this work are applicable to the investigation of the influence of electric traction drive control methods on the energy efficiency of the traction drive of an electric locomotive with an alternating current (AC).

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Analysis of the Efficiency of Traction Drive Control Systems of Electric Locomotives with Asynchronous Traction Motors

Goolak¹,

Liubarskyi

Riabov

et al. 2023

Energies

View full text Add to dashboard Cite

show abstract

“…However, modern tools used to determine the state of an object are based on principles developed to determine the first limit state, which determines the general suitability of an object to work in certain conditions [58][59][60]. The strength [61][62][63] and stability [64][65][66][67] indicators used to evaluate this state are obtained by numerical modeling to simulate quasi-dynamic deformation processes [68][69][70][71] occurring inside the elements under the influence of external [72][73][74] and climatic impulses [75][76][77].…”

Section: Introductionmentioning

confidence: 99%

Using Detailing Concept to Assess Railway Functional Safety

Bondarenko¹,

Campisi

Tesoriere

et al. 2022

Sustainability

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The ability to assess the risks of the functional safety of railway tracks allows harmonizing characteristics of track elements under certain operating conditions under certain maintenance for the efficient use of the track structure throughout its life cycle. The concept of detailing conditions of the interaction of the rolling stock and railway track was used for the productive solution of tasks of infrastructure functional safety assessment. The paper formed an approach to the analytical solution of determination problems of deformability parameters over time using the elastic waves theory. The formation method of interconnections between the technical and economic aspects of the operation of railway infrastructure was proposed. The criteria of deformability work and intensity of use were utilized for the effective use of the track structure through its life cycle. The results of calculations are presented to assess changes in the deformability behaviour of the track elements and structure when the force and speed parameters of the operating conditions change, as well as the algorithm of the method for estimating the operation deformability of the railway track. Thus, the proposed approach can be adapted to optimize objects by railway functional safety assessment at the stage of object operation simulation.

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Simulation of a direct torque control system in the presence of winding asymmetry in induction motor

et al. 2023

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The operation of a direct torque control (DTC) system for induction motors with the possible presence of unbalanced modes in the motor windings is studied. It is shown that in the presence of asymmetric modes in the motor windings, the classical DTC algorithm becomes unstable. It is proposed to improve the DTC by taking into account the unbalance of the active resistances of the motor stator windings when determining the DTC parameters. This will make it possible to study electrodynamic processes in DTC with the possible presence of asymmetric modes in the windings of induction motor.

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Running Dynamics of Rail Vehicles

Abstract: The importance of simulation calculations in developing railway vehicles and their subsystems is consistently growing compared to physical experiments and track tests [...]

Cited by 8 publications

References 6 publications

Analysis of the Efficiency of Traction Drive Control Systems of Electric Locomotives with Asynchronous Traction Motors

Analysis of the Efficiency of Traction Drive Control Systems of Electric Locomotives with Asynchronous Traction Motors

Using Detailing Concept to Assess Railway Functional Safety

Simulation of a direct torque control system in the presence of winding asymmetry in induction motor

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