An Improved Torque and Current Pulsation Suppression Method for Railway Traction Drives Under Fluctuating DC-Link Voltage

Lei, Yanxiao; Wang, Ke; Zhao, Lu; Ge, Qiongxuan; Li, Zixin; Li, Yaohua

doi:10.1109/tpel.2017.2777479

Cited by 20 publications

(6 citation statements)

References 26 publications

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“…Thus, the constraint of the bandwidth is ω P < 2 Nf pwm . The dc‐side voltage contains a fluctuating component with a frequency of 2 f 0 [36]. The input of the proposed IM‐VBC method in Figure 2 is u dav 2 , so a 4 f 0 fluctuating component will enter the VBC system, which may increase the fluctuation of the compensation duty cycle and even deteriorate the ac‐side current quality.…”

Section: Experimental Verificationmentioning

confidence: 99%

A whole control strategy for cascaded H‐bridge rectifiers under distorted grid voltage and unbalanced load

Liu

Song

et al. 2023

IET Power Electronics

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Control for single‐phase cascaded H‐bridge rectifier (CHBR) under distorted grid voltage is seldom discussed in the existing control methods; a modified direct power control (DPC) scheme is therefore proposed in this paper. A simple power control structure with proportional‐integral control method is first presented, which can discard phase‐locked loop (PLL) and coordinate transformation. Then, an improved fictitious orthogonal algorithm is proposed to provide a better anti‐disturbance ability compared with the traditional second‐order generalized integrator (SOGI). Since the orthogonal component of the grid current runs concurrently with the power reference, it offers an excellent dynamic performance in inner loop. On the other hand, a voltage balancing control (VBC) model by the relationship between the difference of dc‐side voltage square and that of power is established. On this basis, an internal model VBC (IM‐VBC) method is provided to reduce the parameter tuning complexity. With this method, the dynamic performance of voltage balancing on the dc side is improved. Finally, several test results on hardware‐in‐the‐loop (HIL) and scale‐down platform are demonstrated, which validate the effectiveness and superiority of the proposed control strategy.

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Section: Experimental Verificationmentioning

confidence: 99%

A whole control strategy for cascaded H‐bridge rectifiers under distorted grid voltage and unbalanced load

Liu

Song

et al. 2023

IET Power Electronics

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“…An improved closed-loop torque and current pulsation suppression method was proposed by Wang et al 12 , which could eliminate the q -axis current pulsation component in the field-oriented control system through frequency compensation. The torque pulsation suppression was also achieved automatically.…”

Section: Introductionmentioning

confidence: 99%

Influence of electrical part of traction transmission on dynamic characteristics of railway vehicles based on electromechanical coupling model

Wang

Peng²,

et al. 2021

Sci Rep

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With the continuous development of rail transit industry and the acceleration of train speed, higher requirements are established for the operation quality of high-speed trains and the reliability of transmission system. In the process of train running, speed fluctuation and vibrations from various parts of the driving devices are common, which could be greatly affected by the traction torque. During traction transmission, the harmonic vibration torque exists in traction motor due to that the motor is connected with non-sinusoidal alternating current. In order to study the vibration influence of the electrical component of traction transmission system on the rail vehicles, i.e., bogie and car-body, an electro-mechanical coupling dynamic model for rail transit vehicles was established by explicitly incorporating the electric-induced traction into the transmission model. The dynamics responses of the vertical, lateral and longitudinal acceleration on vehicle components, such as axle box and car-body were quantitative analyzed. By comparison with field test, it was observed that there was a vibration peak of 12-times of the fundamental rotor frequency on the bogie frame and axle box, which existed at conditions of traction, uniform speed and braking. However, the vibration acceleration exhibit nearly little difference with or without traction force, especially at low frequency domain < 100 Hz.

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“…A permanent magnet in-wheel motor (PMIWM) can be seated in the small space of the wheel of HEVs [8,9]. The performance of PMIWMs is sensitive to uncertain external factors such as temperature, vibration, magnetic saturation [10][11][12][13] and affects the comfort and safety of a vehicle. Therefore, the research on the control system of PMIWMs should take the external factors into consideration.…”

Section: Introductionmentioning

confidence: 99%

Fast Terminal Sliding Mode Control of Permanent Magnet In-Wheel Motor Based on a Fuzzy Controller

Huang

Pan

et al. 2020

Energies

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A fast terminal sliding mode control is proposed in this paper for improving the dynamic performance and robustness of a permanent magnet in-wheel motor system driven by a voltage source inverter. Firstly, a fast terminal sliding mode approaching law was designed to accelerate the approaching rate of the control system. Then, a torque load observer was designed to compensate for disturbances and uncertainties. Finally, fuzzy rules were designed to suppress the chattering phenomenon. Simulation and experimental results demonstrated that the fast terminal sliding mode control strategy presented better response speed than the conventional sliding mode control strategy. It had better dynamic performance and anti-interference and effectively reduced the chattering phenomenon in the control process.

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An Improved Torque and Current Pulsation Suppression Method for Railway Traction Drives Under Fluctuating DC-Link Voltage

Cited by 20 publications

References 26 publications

A whole control strategy for cascaded H‐bridge rectifiers under distorted grid voltage and unbalanced load

A whole control strategy for cascaded H‐bridge rectifiers under distorted grid voltage and unbalanced load

Influence of electrical part of traction transmission on dynamic characteristics of railway vehicles based on electromechanical coupling model

Fast Terminal Sliding Mode Control of Permanent Magnet In-Wheel Motor Based on a Fuzzy Controller

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