Electric drive system for speed adjusting of a three-phase asynchronous motor using a PLC for propelling an electric vehicle

2017 ◽  
Author(s):  
Ene Lucian-Vasile ◽  
Sanatescu Diana-Ramona
Keyword(s):  
Electric Vehicle ◽  
Electric Drive ◽  
Asynchronous Motor ◽  
Drive System ◽  
Electric Drive System ◽  
Three Phase

scholarly journals Development of electric drive system with vector control in the facility of inter-stand cooling of sheet rolled product

2019 ◽  
Vol 75 (3) ◽  
pp. 350-354 ◽  
Author(s):  
K. V. Litsin ◽  
T. V. Koval’chuk
Keyword(s):  
Vector Control ◽  
Electric Drive ◽  
Rolled Product ◽  
Asynchronous Motor ◽  
Drive System ◽  
Automation System ◽  
Nominal Data ◽  
Electric Drive System ◽  
Motor Problems ◽  
Electric Equipment

Modernization of the pusher electric drive of inter-stand cooling facility of sheet rolled product is an actual way to increase efficiency of rolling production. The control by the existing electric drive is accomplished by a system, comprising an asynchronous motor. Problems of automation of the facility of inter-stand cooling of sheet rolled product of JSC “Ural steel” sheetrolling shop considered. Modernization of existing system by implementation of frequency convertor with vector control proposed. To restrict the pusher movement it proposed to use induction sensors and controller SIMATIC S7-300. Algorithm of the pusher operation with induction sensors application considered. The elaborated algorithm of the pusher operation realized on the base of SIMATIC S7-300 controller. Calculation and building of load diagram and the pusher drive tachometric diagram accomplished for one cycle of its operation. Taking into account nominal data of the pusher selected motor and requirements to electric equipment, a frequency convertor with vector control was selected. Implementation ofthe system “frequency convertor – asynchronous motor” with vector control justified. The vector control enables to provide a preset pace of the motor acceleration, its complete protection against over-loading that increases considerably service life of the electric drive system as a whole. Application of frequency controlled pusher drive together with SIMATIC S7-300 controller will enable to automatize the process of the pusher operation. Implementation of the developed automation system of the pusher electric drive operation is possible also at other steel-works.The payback period of the solutions proposed within the frame of the project will be 9 months.

scholarly journals Research on Control Strategy of Hydraulic Regenerative Braking of Electrohydraulic Hybrid Electric Vehicles

2021 ◽  
Vol 2021 ◽  
pp. 1-9 ◽  
Author(s):  
Qinghai Zhao ◽  
Hongxin Zhang ◽  
Yafei Xin
Keyword(s):  
Electric Vehicle ◽  
Electric Drive ◽  
Control Strategy ◽  
Hybrid Electric Vehicle ◽  
Operating Conditions ◽  
Drive System ◽  
Regenerative Braking ◽  
Electric Drive System ◽  
Hybrid Electric ◽  
The Impact

The vehicle will generate an amount of current while the electric vehicle just starting to regeneratively brake. In order to avoid the impact of high current on the traction battery, a novel electrohydraulic hybrid electric vehicle has been proposed. The main power source is supplied by the electric drive system, and the hydraulic system performs the auxiliary drive system that fully exerts the advantages of the electric drive system and the hydraulic drive system. A proper regenerative braking control strategy is presented, and the control parameters are determined by the fuzzy optimization algorithm. The simulation analysis built the model through the united simulation of AMESim and MATLAB/Simulink. The results illustrated that the optimized control strategy can reduce battery consumption by 1.22% under NEDC-operating conditions.

scholarly journals Research on Harmonic Torque Reduction Strategy for Integrated Electric Drive System in Pure Electric Vehicle

Electronics ◽  
2020 ◽  
Vol 9 (8) ◽  
pp. 1241 ◽  
Author(s):  
Jianjun Hu ◽  
Ying Yang ◽  
Meixia Jia ◽  
Yongjie Guan ◽  
Chunyun Fu ◽  
...  
Keyword(s):  
Electric Vehicle ◽  
Electric Drive ◽  
Electromechanical Coupling ◽  
Voltage Drop ◽  
Permanent Magnet Synchronous Motor ◽  
Drive System ◽  
Reduction Strategy ◽  
Electric Drive System ◽  
Speed Fluctuation ◽  
The Stability

In order to study the influence of harmonic torque on the performance of the integrated electric drive system (permanent magnet synchronous motor + reducer gear pair) in a pure electric vehicle (PEV), the electromechanical coupling dynamic model of a PEV was established by considering the dead-time effect and voltage drop effect of an inverter and the nonlinear characteristics of the transmission system. Based on the model, the dynamic characteristics of an integrated electric drive system (IEDS) are studied, and the interaction between the mechanical system and electrical system is analyzed. On this basis, a harmonic torque reduction strategy for an IEDS is proposed in this paper. The simulation results show that the proposed strategy can effectively reduce the harmonic torque of the motor and reduce the speed fluctuation and dynamic load of the system components, which can improve the stability of the IEDS and prolong the life of the mechanical components.

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