Control Strategies for Induction Motors in Railway Traction Applications

Abou‐Zeid, A.; Guerrero, Juan Manuel; Endemaño, Aitor; Muniategui, Iker; Ortega, David; Larrazabal, Igor; Briz, Fernando

doi:10.3390/en13030700

Cited by 46 publications

(35 citation statements)

References 31 publications

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“…This allows proper tracking of the commanded speed and torque. In addition to the fast response to a step torque demand, meeting the maximum required torque ramp also needs to be ensured [63]. In multilevel inverters, the large number of available voltage vectors increases the computation time which will have a negative effect on the response time.…”

Section: Selection Criteriamentioning

confidence: 99%

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A Review of Modulation and Control Techniques for Multilevel Inverters in Traction Applications

2021

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Traction inverter has been the subject of many studies due to its essential role in the proper performance of the drive system. With the recent trend in increasing the input voltage in battery-powered electric vehicles, multilevel inverters have been proposed in the literature as a promising substitute for conventional twolevel traction inverters. A critical aspect of utilizing multilevel structures is employing proper control and modulation techniques. The control system structure must be capable of handling a number of key issues, like capacitor voltage balancing and equal power loss sharing, which arise in multilevel topologies. This paper presents a review of the present-day traction drive systems in the industry, control and modulation techniques for multilevel structures in the inverters, as well as the principal challenges that need to be addressed in the control stage of the multilevel traction inverter. A comparison has been made between different methods based on the most important criteria and requirements of the traction drive system. Finally, future trends in this application are presented and some suggestions have been made for the next generation of traction drives.

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Section: Selection Criteriamentioning

confidence: 99%

“…Its performance improvement depends on the accuracy of these feedforward paths [63]. The scalar controller is not investigated further here for traction applications.…”

Section: A Scalar Controlmentioning

confidence: 99%

A Review of Modulation and Control Techniques for Multilevel Inverters in Traction Applications

2021

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“…The AC motor drives, including induction motors (IM), permanent-magnet synchronous motor (PMSM) drives, synchronous reluctance motors (SynRM), and others, have been very popular, being applied to electric vehicles, railway traction engines, and industrial applications such as CNC tools and robots, because they have higher power density and efficiency as compared to DC motor drives [1][2][3][4]. Since the AC motor is a time-varying, multi-variable, and nonlinear control system with very complicated dynamic characteristics, it can be reduced to a simpler linear control system by using the field-oriented vector control method [5][6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Implementation of an FPGA-Based Current Control and SVPWM ASIC with Asymmetric Five-Segment Switching Scheme for AC Motor Drives

2021

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This paper presents the design and implementation of an application-specific integrated circuit (ASIC) for a discrete-time current control and space-vector pulse-width modulation (SVPWM) with asymmetric five-segment switching scheme for AC motor drives. As compared to a conventional three-phase symmetric seven-segment switching SVPWM scheme, the proposed method involves five-segment two-phase switching in each switching period, so the inverter switching times and power loss can be reduced by 33%. In addition, the produced PWM signal is asymmetric with respect to the center-symmetric triangular carrier wave, and the voltage command signal from the discrete-time current control output can be given in each half period of the PWM switching time interval, hence increasing the system bandwidth and allowing the motor drive system with better dynamic response. For the verification of the proposed SVPWM modulation scheme, the current control function in the stationary reference frame is also included in the design of the ASIC. The design is firstly verified by using PSIM simulation tool. Then, a DE0-nano field programmable gate array (FPGA) control board is employed to drive a 300W permanent-magnet synchronous motor (PMSM) for the experimental verification of the ASIC.

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“…The development of railway transport, increasing the mass of trains and increasing the speed of their movement have led to the need to use drives with AC motors [6]. Induction three-phase AC motors have a number of advantages over DC motors with serial excitation, namely the absence of such a complex and unreliable unit as a collector, which significantly reduces operating costs for maintenance and repair.…”

Section: Introduction One Of the Main Directions Of Implementation Of The National Transport Strategy Ofmentioning

confidence: 99%

“…Depending on the signal of the rotor position sensor, the electronic switch connects the motor phase to the power supply via the cable (5). In this case, the electromechanical power converter (2) converts electrical energy into mechanical energy, driving the shaft of the machine (6). The ball-screw pair «screw-nut» converts the rotational movement of the screw ( 9) into the translational motion of the nuts (10).…”

Section: Introduction One Of the Main Directions Of Implementation Of The National Transport Strategy Ofmentioning

confidence: 99%

Mathematical modelling of transients in the electric drive of the turnout of the mono-sleeper type with switched-inductor motor

Buriakovskyi¹,

Maslii²,

Asmolova³

et al. 2021

Electrical Engineering & Electromechanics

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Introduction. The study is devoted to the development of the functionality of a railway track switch by introducing a switched-inductor electric drive. This solution justifies simplifying the mechanical part of the switches by changing the gearbox to a ball-screw and locating the all kinematic line of the switches on the mono-sleeper type. Goal. A study of the mono-sleeper turnout type behaviour to meet modern traffic safety requirements and improve operational reliability factors. Methodology. Based on electric drive theory, a kinematic line of a mono-switch turnout type with nonlinear friction characteristic is presented. Using differential equation theory and Laplace transformation, a mathematic description of a four-phase switched-inductor motor with ball-screw in a mechanical line of a single-mass electromechanical system has been made. A simulation mathematical model of the electric drive of mono-sleeper turnout type as the control system with a switched-inductor motor and nonlinear friction characteristic was built in MATLAB. Results. Simulation modelling of a mathematical model of a mono-sleeper turnout type with a switched-inductor motor and ball-screw gear has been developed and implemented. Studies of dynamics of turnout point movement have shown that, in contrast to the motors used today, the switched-inductor motor makes it possible to simplify the mechanical part of the drive, which leads to reduced time spent on laying and maintenance of turnout points, and therefore makes the design more reliable. The application of PID controller and fuzzy speed controller has shown improved dynamics of turnout point, while the fuzzy PID controller provides better performance of the set values and turnout point movements. Originality. First developed a mathematical model of the electric drive of the mono-sleeper turnout type, taking into account nonlinear friction characteristic, as an object of speed control of turnout point movement, is developed. Practical value. The developed mathematical model of a railway track turnout of the mono-sleeper type with a switched-inductor motor and ball-screw gear enables more efficient use of a microprocessor control system, creation of promising electric motor protection means and control of a turnout point.

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Control Strategies for Induction Motors in Railway Traction Applications

Cited by 46 publications

References 31 publications

A Review of Modulation and Control Techniques for Multilevel Inverters in Traction Applications

A Review of Modulation and Control Techniques for Multilevel Inverters in Traction Applications

Implementation of an FPGA-Based Current Control and SVPWM ASIC with Asymmetric Five-Segment Switching Scheme for AC Motor Drives

Mathematical modelling of transients in the electric drive of the turnout of the mono-sleeper type with switched-inductor motor

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