A hybridization design of an air motor and an electric motor based on field programmable gate array controller

Among the elements of developing electric vehicles, the battery is usually the weakest point, as well as the most expensive component. If the battery life is too short, the frequently replacement of the battery is necessary, which will increase the overall cost. This article presents a novel hybridization design and implementation of an air motor and an electric motor which utilizes magnetic powder brake to integrate these two motors together. In this research, by the use of batteries, operation in the large discharge region can be avoided and more electric energy can be saved using an air motor as the auxiliary power. The testing results obtained using the proposed experimental platform indicate that the output current of the battery is 126 A with no air motor-assisted power, and the output current is 64 A when the pre-set switching point is 1400 r/m. These results clearly show that the current reduction is about 49%, and thus the service life of the batteries can be greatly increased. Furthermore, a prototype is built with a proportional–integral speed controller based on a field programmable gate array in order to facilitate the entire analysis of the velocity switch experiment. Through the modular methodology of field programmable gate array, the electric motor can successfully operate at the desired velocity with the proportional–integral speed controller.

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Field-programmable gate array controller design for air-powered motorcycle

Proceedings of the Institution of Mechanical Engineers Part C Journal of Mechanical Engineering Science ◽

10.1177/0954406211399976 ◽

2011 ◽

Vol 225 (7) ◽

pp. 1579-1588 ◽

Cited By ~ 1

Author(s):

S-Y Huang ◽

Y-R Hwang

Keyword(s):

Field Programmable Gate Array ◽

Controller Design ◽

Combustion Engine ◽

Air Motor ◽

Speed Controller ◽

Gas Cylinder ◽

Lyapunov Controller ◽

Field Programmable ◽

Hardware Description ◽

Gate Array

This article presents a field-programmable gate array (FPGA) speed controller design and applied in an air-powered motorcycle which utilizes an air motor and a high-pressure gas cylinder to replace the internal combustion engine and oil tank, respectively. One of the main purposes of this research is to find the relationship between velocity and efficiency of an air-powered motorcycle. In addition, a speed control system is developed based on FPGA in order to control the velocity of an air-powered motorcycle. The control theories are actualized by the hardware description language and modular conception is used to divide a complex system into many parts. This design methodology shortens the development time and is easy to modify for each module. Besides, the system dynamics of air-powered motorcycle was derived through the tractive effort and the dynamic response was simulated by the Matlab software. From the experimental results, the air-powered motorcycle can drive with the best efficiency, at the velocity expected by the proportional–integral (PI) and Lyapunov speed controllers. Also, the experimental data show that the chattering ranges are 2.7 per cent and 6.9 per cent of Lyapunov controller and PI controller, respectively, under the same velocity.

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Robust Direct Torque Control with Super-Twisting Sliding Mode Control for an Induction Motor Drive

Complexity ◽

10.1155/2019/7274353 ◽

2019 ◽

Vol 2019 ◽

pp. 1-24 ◽

Cited By ~ 1

Author(s):

Saber Krim ◽

Soufien Gdaim ◽

Mohamed Faouzi Mimouni

Keyword(s):

Induction Motor ◽

Field Programmable Gate Array ◽

Direct Torque Control ◽

Lyapunov Theory ◽

Torque Control ◽

Motor Drive ◽

Induction Motor Drive ◽

Speed Controller ◽

Field Programmable ◽

Gate Array

A field-programmable gate array- (FPGA-) based nonlinear Direct Torque Control (DTC) associated with Space Vector Modulation (SVM), Input-Output Feedback Linearization (IOFL), and second-order super-twisting speed controller is proposed to control an induction motor drive. First, the nonlinear IOFL is proposed to achieve a decoupled flux and torque control and the SVM technique is used to control the inverter switching frequency which reduces the torque ripples and noise. Next, to enhance the speed regulation, a super-twisting speed controller is added to an SVM-DTC-IOFL scheme. The nonlinear SVM-DTC-IOFL ensures a high dynamic response, good robustness under the external load disturbances. The Lyapunov theory is used to analyze the system stability. Then, this paper presents the interest of implementing the suggested SVM-DTC-IOFL using a Field-Programmable Gate Array (FPGA) circuit. The main interest of the FPGA-implementation is the reduction of the control loop delay, which is evaluated to a few microseconds, thanks to the parallel processing offered by the FPGA. The performances of the proposed control algorithm are investigated by digital simulation using the Xilinx system generator tool and an experimental implementation utilizing an FPGA-Virtex-5-ML507.

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Design and Analysis of an Air/Electric Hybrid System

Volume 4: 18th Design for Manufacturing and the Life Cycle Conference; 2013 ASME/IEEE International Conference on Mechatronic and Embedded Systems and Applications ◽

10.1115/detc2013-12118 ◽

2013 ◽

Author(s):

Yean-Ren Hwang ◽

Shih-Yao Huang

Keyword(s):

Service Life ◽

Power System ◽

Electric Motor ◽

Electric Energy ◽

Electric Power System ◽

Driving Cycle ◽

Air Motor ◽

Hybrid Power ◽

Speed Controller ◽

Motor Mode

This paper proposes a hybridization design and analysis of an air/electric power system in order to extend the service life of the batteries. During the analysis process, the dynamic model of air motor, electric motor and hybrid power mode will be constructed and used in the FPGA speed controller design. By the modular methodology of FPGA, the hybrid power system can successfully operate under ECE-40 driving cycle with PI speed controller. The testing results indicate that the total air consumption is about 256 liters under air motor mode and the electric energy consumption is about 530 coulombs under DC servo motor mode. However, in a hybrid mode, the current reduction of the battery is about 18.5%, and then the service life of the battery can be improved. In addition, the experimental data shows that the chattering ranges of the air motor and the electric motor are within ±1 km/h and ±0.2 km/h respectively under ECE-40 driving cycle testing.

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