A novel fuel cell drive system for rail transit vehicles based on dual-source motors

2021 ◽  
pp. 1-35
Author(s):  
Yafu Zhou ◽  
Qichao Dong ◽  
LinHui Li ◽  
Jiangang Ma ◽  
Weidong Wan ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Performance Test ◽  
Control Method ◽  
Drive System ◽  
Rail Transit ◽  
Power Battery ◽  
Dual Source ◽  
Dc Drive ◽  
Drive Systems ◽  
Multi Mode

At present, in order to alleviate environmental problems and energy crises, fuel cells are gradually being used in rail transit vehicle (RTV) drive systems. However, in the existing fuel cell drive systems, DC/DC converters are widely used, but there are serious shortcomings in terms of cost, efficiency and market application. To solve these problems, a novel dual-source drive system is innovatively presented in this study. In the dual-source drive system, the multi-mode operating state of the dual source motor was taken into consideration, and based on the independent vector control method (IVCM), the dual-source drive system was modelled and simulated to achieve the motor independent control between power output and power generation as well as the energy exchange between fuel cell and secondary power battery under any working conditions. In order to verify the effectiveness of the proposed dual source drive system, the electric drive performance test was carried out by the dual source system experimental verification platform. The result of this drive system topology is further improved compared with the same level of DC/DC drive system configuration used for this purpose.

Adaptive Control with Supraunitary Relative Degree for the DC Electrical Machine

2013 ◽  
Vol 677 ◽  
pp. 480-484
Author(s):  
Marian Gaiceanu ◽  
Cristian Eni ◽  
Mihaita Coman
Keyword(s):  
Adaptive Control ◽  
Control Method ◽  
Tracking Error ◽  
Electrical Machine ◽  
Control Parameters ◽  
Electrical Drive ◽  
On Line ◽  
Dc Drive ◽  
Drive Systems ◽  
Model Reference Adaptive

In order to obtain an appropriate control for the electrical drive systems the real parameters values must be known accurately. Moreover, due to the parametric and structural uncertainty of the DC drive system, an adaptive control method is necessary. Therefore, a new model reference adaptive control (MRAC) for DC drives is proposed in this paper. MRAC ensures on-line adjustment of the control parameters with DC machine parameter variation. The adaptive control developed in this paper assures the asymptotic cancellation of the tracking error, fast and smooth responses of the DC drive without knowing a priory any information about the DC drive parameters. The simulation results show the validity of the proposed solution.

scholarly journals Vibration Control of Automotive Drive System With Nonlinear Gear Backlash

2019 ◽  
Vol 141 (12) ◽  
Author(s):  
Heisei Yonezawa ◽  
Itsuro Kajiwara ◽  
Shota Sato ◽  
Chiaki Nishidome ◽  
Masato Sakata ◽  
...  
Keyword(s):  
Vibration Control ◽  
Control Method ◽  
Basic Structure ◽  
Drive System ◽  
Control Mode ◽  
Mode Switching ◽  
Practical Applications ◽  
Switching Algorithm ◽  
Gear Backlash ◽  
Drive Systems

Abstract In automotive drive systems, differential gear backlash degrades the control performance. Specifically, a shock torque, which is generated when the gear runs freely and collides with the backlash, increases the vibration amplitude. Consequently, it is important to develop a vibration control method to suppress the adverse effect of nonlinearity due to backlash. Furthermore, considering implementations on actual vehicles, design at the development site, and mass production, a simple and practical control method is necessary. This paper describes the configuration of a basic experimental device, which abstracts an actual vehicle to focus on the influence due to backlash while reflecting the basic structure of an automotive drive system. Next, a basic controller is designed using a mixed H2/H∞ control theory, and a servo system is constructed to track the target value. A simple control mode switching algorithm is proposed for backlash compensation. This algorithm is suited to practical applications because it uses only an output without a state estimation and it compensates for performance deteriorations due to the nonlinearity by operating a single linear controller. Finally, simulations and experiments verify the effectiveness of the proposed control system.

scholarly journals Analysis of Torque Ripples of an Induction Motor Taking into Account a Inter-Turn Short-Circuit in a Stator Winding

Energies ◽  
2020 ◽  
Vol 13 (14) ◽  
pp. 3626 ◽  
Author(s):  
Wojciech Pietrowski ◽  
Konrad Górny
Keyword(s):  
Early Stage ◽  
Short Circuit ◽  
Torque Ripple ◽  
Drive System ◽  
Electrical Machines ◽  
Stator Winding ◽  
Permanent Magnet Synchronous Machines ◽  
Noninvasive Diagnostics ◽  
Drive Systems ◽  
Commercial Applications

Despite the increasing popularity of permanent magnet synchronous machines, induction motors (IM) are still the most frequently used electrical machines in commercial applications. Ensuring a failure-free operation of IM motivates research aimed at the development of effective methods of monitoring and diagnostic of electrical machines. The presented paper deals with diagnostics of an IM with failure of an inter-turn short-circuit in a stator winding. As this type of failure commonly does not lead immediately to exclusion of a drive system, an early stage diagnosis of inter-turn short-circuit enables preventive maintenance and reduce the costs of a whole drive system failure. In the proposed approach, the early diagnostics of IM with the inter-turn short-circuit is based on the analysis of an electromagnetic torque waveform. The research is based on an elaborated numerical field–circuit model of IM. In the presented model, the inter-turn short-circuit in the selected winding has been accounted for. As the short-circuit between the turns can occur in different locations in coils of winding, computations were carried out for various quantity of shorted turns in the winding. The performed analysis of impact of inter-turn short-circuit on torque waveforms allowed to find the correlation between the quantity of shorted turns and torque ripple level. This correlation can be used as input into the first layer of an artificial neural network in early and noninvasive diagnostics of drive systems.

scholarly journals Mechanical-Level Hardware-In-The-Loop and Simulation in Validation Testing of Prototype Tower Crane Drives

Energies ◽  
2020 ◽  
Vol 13 (21) ◽  
pp. 5727
Author(s):  
Michał Michna ◽  
Filip Kutt ◽  
Łukasz Sienkiewicz ◽  
Roland Ryndzionek ◽  
Grzegorz Kostro ◽  
...  
Keyword(s):  
Laboratory Testing ◽  
Environmental Parameters ◽  
Experimental Tests ◽  
Drive System ◽  
Hardware In The Loop ◽  
Dynamic Simulations ◽  
Tower Crane ◽  
University Of Technology ◽  
New Type ◽  
Drive Systems

In this paper, the static and dynamic simulations, and mechanical-level Hardware-In-the-Loop (MHIL) laboratory testing methodology of prototype drive systems with energy-saving permanent-magnet electric motors, intended for use in modern construction cranes is proposed and described. This research was aimed at designing and constructing a new type of tower crane by Krupiński Cranes Company. The described research stage was necessary for validation of the selection of the drive system elements and confirmation of its compliance with applicable standards. The mechanical construction of the crane was not completed and unavailable at the time of testing. A verification of drive system parameters had to be performed in MHIL laboratory testing, in which it would be possible to simulate torque acting on the motor shaft. It was shown that the HIL simulation for a crane may be accurate and an effective approach in the development phase. The experimental tests of selected operating cycles of prototype crane drives were carried out. Experimental research was performed in the LINTE^2 laboratory of the Gdańsk University of Technology (Poland), where the MHIL simulator was developed. The most important component of the system was the dynamometer and its control system. Specialized software to control the dynamometer and to emulate the load subjected to the crane was developed. A series of tests related to electric motor environmental parameters was carried out.

The influence of parameters and structure of PI-type fuzzy-logic controller on DC drive system dynamics

2002 ◽  
Vol 131 (2) ◽  
pp. 251-264 ◽  
Author(s):  
Teresa Orlowska-Kowalska ◽  
Krzysztof Szabat ◽  
Krzysztof Jaszczak
Keyword(s):  
Fuzzy Logic ◽  
System Dynamics ◽  
Fuzzy Logic Controller ◽  
Drive System ◽  
Dc Drive

Wide‐range adjustable speed control method for dual‐motor drive systems

2015 ◽  
Vol 9 (2) ◽  
pp. 107-116 ◽  
Author(s):  
Shao‐Kai Tseng ◽  
Chih‐Chien Tseng ◽  
Tian‐Hua Liu ◽  
Jui‐Ling Chen
Keyword(s):  
Control Method ◽  
Speed Control ◽  
Motor Drive ◽  
Wide Range ◽  
Adjustable Speed ◽  
Drive Systems

Comparative Analysis of the Control Rod Drive System

2012 ◽  
Vol 614-615 ◽  
pp. 1558-1561
Author(s):  
Wen Wei Han ◽  
Wei Shi Han ◽  
Qing Guo
Keyword(s):  
Comparative Analysis ◽  
Drive System ◽  
Hydraulic Control ◽  
Control Rod ◽  
Rod System ◽  
Drive Systems ◽  
Research Situation

This article has systematically summarized the recent research situation of control rod system in China and comparatively analyzed the features of a variety of control rod drive systems on a basis of brief introduction of common types of control rod drive system. It has been proposed to that the hydraulic control rod drive system have a great potential in a wide application concerning on ships, warships power reactors and protable desalination system.

High-Cycle Fatigue of Shafts due to Starting Transients in Drive Systems

1988 ◽  
Vol 202 (3) ◽  
pp. 201-209 ◽  
Author(s):  
S G Velonias ◽  
N A Aspragathos
Keyword(s):  
Structural Characteristics ◽  
Drive System ◽  
Suggested Approach ◽  
Loss Of Life ◽  
Speed Reducer ◽  
Starting Conditions ◽  
General Drive ◽  
Drive Systems ◽  
Non Linear System ◽  
Spring Constants

This paper investigates some of the effects that structural characteristics and main non-linearities of a drive system have on systems response and its shaft fatigue. In the suggested approach a general drive system, including a motor, load and speed reducers, is modelled as a multi-degree-of-freedom torsional vibrations non-linear system. The differential equations of the system are formed automatically. The user of the developed program must input just the constants of the components. An algorithm to compute the loss of life of the shafts due to fatigue is also incorporated into the program. As an example, a drive system, including a motor, a speed reducer and load is modelled and tested under starting conditions. The effects of changing spring constants of the shafts and the backlash of the speed reducer are investigated.

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