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The combination of Battery-Ultracapacitor, as a Hybrid Energy Storage System (HESS) controlled with a bidirectional buck-boost converter for light electric vehicles is presented in this paper. By combining these two energy storage elements an efficient supply system can be obtained. A bidirectional Buck-Boost converter is used to control the energy transfer between the elements of the HESS and the...
The paper describes step by step the process of constructing and testing real-time tool for analysis of a bidirectional Buck-Boost converter supplying a Permanent Magnet Synchronous Machine (PMSM), as a traction motor for light electric vehicles. This converter was developed to be used as a controlled energy transfer equipment between the main energy source of a battery and an auxiliary ultracapacitor...
This paper presents a rapid control prototyping technique for a speed controlled Switched Reluctance Machine. The control is developed in LabVIEW FPGA and runs on an R-series board by National Instruments equipped with a Kintex-7 FPGA chip. The control is designed and simulated in real-time using look-up tables, with data provided by finite element method simulations and mathematical equations describing...
The paper details an advanced analysis of a Permanent Magnet Synchronous Machine, as traction motor for light electric vehicles. The focus of the paper is to create a real-time model in the loop (RTMiL) simulator based on Field Programmable Gate Array (FPGA). By this, the gap between the simulated models and the behavior of the real machine and its converter is diminished. The machine with its electronic...
The present paper follows closely the emerging trend of developing solutions that can replace the existing combustion engines in the automotive industry. In addition to the existing skills published already, the paper details the itinerary of the process, starting from the concept, following with the design, validation via simulations and experimental tests of the proposed solution. This is based...
The present paper details the analysis of a custom designed synchronous reluctance machine used for light electric vehicles. Firstly, the paper details the design of the machine using dedicated software, followed by an iterative optimization process using a coupling of FEM software with Matlab code. In order to analyze the performance of the machine, dedicated control strategies need to be implemented...
The paper present the analysis of the performances of an electrical machine used for electric traction in automotive application. The electrical machine under study in this paper is a flux synchronous reluctance machine (SynRM) with 4 poles and 27 slots. The study design requires some analytical analysis in SPEED program, followed by a numerical one in order to obtain the performances of the proposed...
Worldwide nowadays there is a serious tendency of passing from internal combustion engines to electrical or hybrid propulsion systems. On this trend, the paper details the itinerary from concept to numerical validation of an electrical propulsion unit, dedicated for a light electric vehicle which is equipped with a switched reluctance machine (SRM). Starting from the design concept, analysis via complex...
This paper presents an overview and the results of a Field Programmable Gate Array (FPGA) based real-time simulation of a Switched Reluctance Motor (SRM) drive system, designed for light EV applications. The analysis is ran on a Kintex-7 FPGA using an R series board from National Instruments. The real time simulation model is designed in LabVIEW FPGA and uploaded on the R series board to perform accurate...
This paper details on an advanced analysis of a Variable Reluctance Machine, designed to be used for light electric vehicle propulsion. The goal is to setup a Field Programmable Gate Array (FPGA) based Processor-in-the-Loop simulation test bench for the proposed machine, in such way, that emulates the real machine and control unit as close as possible. Hence, two FPGAs are used, one running the Field...
In the last decade due to their high efficiency and reliability, permanent magnet synchronous machine are widely used in automotive applications. There are two main reasons for this trend: the reduction of the fuel consumption and the increase of the travel comfort. In this study we consider the approaches of electromagnetic design of a special topology of permanent synchronous machine (radial flux...
The subject of the paper is focused on the analysis of a 30kW switched reluctance machine for propulsion of electrical vehicle propulsion (EV). The paper details the fundamental steps when developing such an electrical machine, and validates the structure using co-simulation procedures, coupling finite element analysis software (Cedrat Flux2D) with software used to implement the controller (Matlab/Simulink)...
The paper deals with the analysis of two solutions for light electric vehicles propulsion units. The propulsion machines taken into study are the switched reluctance and variable reluctance synchronous machines. Variable reluctance machines were chosen because there are cheep and reliable machines, these being key points for such applications. The analysis is performed by means of finite element method...
This paper deals with the improvement of the switched reluctance motor's fault tolerant control for traction drives. The main purpose is to use a control technique which is able to retain the required speed for various load torques at minimal torque ripple also during one opened phase operation. The paper focuses on the comparative study of the current hysteresis control and direct instantaneous torque...
The electrical drive systems used in automotive applications has to be both reliable and of high performance. To fulfill these demanding requirements a modular fault tolerant switched reluctance motor is proposed, which is controlled by means of an effective direct instantaneous torque controller. In the paper both the motor and the control system are described. By simulations the working principle...
This paper deals with a novel design conception of Switched Reluctance Motor (SRM) for electrical vehicles as electrical mini truck. This design consists of segmented stator with toroid windings water cooled and the rotor has salient poles. The SRM dimensions are calculated on the base of input requirements. The static and dynamic parameters of SRM are obtained from simulation models based on Finite...
A modular stator switched reluctance motor (SRM) for fault tolerant drive systems is proposed. Owing to the particular construction of the stator there is no mutual coupling between adjacent phases. Hence, the motor can work also when a part of the coils is faulted and the faulted modules can be replaced without uncoupling the machine from the load or gearbox. The sizing particularities are presented...
In the paper a rotary-linear switched reluctance motor is proposed and investigated by means of advanced numerical simulations. The motor can generate two degrees of freedom movements: the same axis can both rotate and displace linearly. It is mechanically robust, simple to construct and easy to operate also in hostile automotive environment. The stator is built up modularly from precisely shifted...
In the paper a switched reluctance rotary-linear motor is proposed and investigated. It is mechanically robust, simple to construct and easy to operate also in hostile industrial and automotive environment. The stator is built up modularly from correctly shifted three usual 8 poles switched reluctance motor stators. The mover is constructed of several common 6 poles SRM rotor stacks. The motor is...
In advanced manufacturing systems complex movements are frequently needed. These can be performed by motion systems able to execute motion of several degrees of freedom. Usually each type of movement is performed by one independent electrical machine. In a more developed approach electrical machines able to perform more degrees of freedom motion are widely required. In the paper some contributions...
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