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In this work an optimized fuzzy logic control strategy for Hybrid Electric Vehicle energy management is proposed. The dynamic programming algorithm is applied to obtain the optimal power distribution between engine and motor for a given driving cycle. The dynamic programming solution is also utilized for the design of the fuzzy control strategy and acts as benchmarks for comparison. The proposed strategy...
Researched on the permanent magnet synchronous motor (PMSM) for the electric-drive tracked bulldozer, an outer voltage-loop flux-weakening control strategy based on over-modulation, which is an organic combination of the traditional outer voltage-loop flux-weakening control and over-modulation algorithm, is presented in this paper. The simulation and the experiment of the control strategy are carried...
The PM parts and electrical excitation part synchronously contribute to the output torque for the parallel hybrid excitation machine (PHEM), which consists of the permanent magnet synchronous machine (PMSM) and the doubly salient electro-magnet machine (DSEM). In this paper, the torque-angle characteristic of the presented machine is analyzed by finite element analysis (FEA). The field current has...
This paper presents an optimal design of interior permanent magnet synchronous machine (IPMSM) for electric spindle considering the flux-barrier shape. Four types of flux-barrier are discussed and compared to improve torque performance, which includes the average torque, torque ripple and cogging torque. The design process is accomplished by using finite element method (FEM). Moreover, the Taguchi...
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)...
This paper presents our development of an interior permanent magnet synchronous motor (IPMSM) that reduces the amount of rare earth magnets required for its operation by changing the rotor structure. For comparison, as a standard, we employ a conventional IPMSM that uses only rare earth magnets. We introduce 2 types of rotor structures and analyze the average torque and torque ripple using the three-dimensional...
This paper presents a model of battery powered electric vehicle with computer algorithm for calculation of optimal energy components. The goal of the research was to create a system which can optimize the vehicle battery and motor for the given driving cycle thus minimizing equipment expenses. Furthermore, paper describes tested vehicle, vehicle components modelling, measurement acquisition process,...
This paper presents a finite control set model predictive control strategy for the speed control of brushed permanent magnet DC machine. Main objective is to introduce and compare basic cost functions regarding speed control. Full order Kalman filter is used for the observation of the non-measured load torque and reduction of speed measurement noise. Influence of the proposed cost functions on the...
This paper presents modeling and analysis of a hysteresis interior permanent magnet (IPM) motor drive for electric submersible pumps. A hysteresis IPM motor can self-start without the need of additional position sensors and complex control techniques. It does not have any slip power losses in the rotor at steady state which results in less heat dissipation and low electrical losses. When used in an...
Permanent magnet stepper motors are being applied as digital actuators for long time. This paper presents a simulation and dynamic analysis of a special type of two-phase permanent magnet stepper motor with the asymmetric stator. The measurement on the motor prototype reveals irregular step size for the half-stepping mode. Therefore, the model of the motor was built and several experiments were run...
In the paper a comparative analysis of the two detectors of the rotor speed sensor faults are presented. The first one is based on the MRAS estimator (Model Reference Adaptive System) and the second one is based on artificial neural network. Performance analysis of each identification and detection system in different operation conditions in the Direct Field Oriented Control structure DFOC is presented...
In this paper, simulation of current controlled switched reluctance machine (SRM) which has 6 stator and 4 rotor poles is realized. Furthermore, SRM machine is fed by three phase voltage source converter (VSC) which has six IGBT power switches. The reason of using controlled rectifier is to have higher power factor and also less current harmonics on grid. The current control algorithm of SRM machine...
During the last few years the European regulations regarding harmful emissions from vehicles lead to the appearance of alternative propulsion technologies in mass production. Hybrid and electrical driving represent the main solutions used by the vehicles manufacturers to significantly reduce the CO2 emissions or to achieve zero emissions. Nowadays, the battery technology represents the main obstacle...
The space station modules form various configuration at different mission phase, and large scale robotic arm is one of the ways to realize the assembly of space modules on orbit. This paper made integrated simulation of dynamics and controlling models about aerocraft and 7-Dof rigid-flexible coupling robotic arm by Simulink and ADAMS. It makes the simulating analysis of the process of robotic arm...
The traditional methods of dynamic modeling for the simulation of hydro-mechanical continuously variable transmission (HMCVT) are cumbersome and complex. The physical simulation models of engine, hydraulic speed regulating mechanism, mechanical speed regulating mechanism and the load were established based on Simscape, and the dynamic characteristics of the components were analyzed in the paper. The...
Wet clutches are often used to transmit torque when the clutch is fully engaged. But the continuously variable torque in the engaging process can also be used to realize flexible speed control instead of controlling the original torque at the drive end of the clutch, especially when large torque is needed. Present paper establishes a short-time speed control system using a wet clutch. The whole model...
This paper focuses on methodology of optimization of the torque split and gear shift points in any drive cycle for Hybrid Electric vehicle. The methodology evaluates objective parameter defined at each and every operating point for Internal Combustion Engine (ICE) and electric motor-generator (E-machine) for all possible torque split and gear shift combinations at a particular instant and finally...
This paper presents the methodology and utility of an HEV plant model using Matlab-Simulink for testing the HCU (Hybrid control Unit) logics in dSPACE Hardware-in-loop environment. It also describes how requirements related to Hybrid Controller testing are addressed using the subject plant model. It further discuss about the requirements for Inputs to hybrid controller that are modeled in close loop...
Comparative studies on several direct torque control (DTC) strategies of interior permanent magnet synchronous motor (IPMSM) for electric vehicles (EVs) are discussed in details, namely basic DTC, DTC combined with space vector modulation (DTC-SVM), and deadbeat DTC (DB-DTC). These DTC strategies are reviewed, meanwhile dynamics and steady-state performance are analyzed and compared. Simulations of...
The paper proposes a symmetrical six-phase PMSM two-motor drive system which consists of a six-phase PMSM series-connected with a three-phase PMSM driven by a single inverter. This enables full decoupling vector control of the two machines. Detailed mathematical modeling of the system is presented. A simulation model with vector control is constructed by Matlab/simulink. The simulation results show...
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