scholarly journals Integrated Charger-Inverter for High-Performance Electric Motorcycles

2021 ◽  
Vol 12 (1) ◽  
pp. 19
Author(s):  
Vu Tran Tuan ◽  
Matheepot Phattanasak ◽  
Sangkla Kreuawan
Keyword(s):  
Induction Motor ◽  
High Performance ◽  
Constant Current ◽  
Nonlinear Controller ◽  
Battery Charger ◽  
Element Analysis ◽  
Voltage Ripple ◽  
High Bandwidth ◽  
Charging Mode ◽  
Ac Induction Motor

A high-performance electric motorcycle (HPEM) integrated charger-inverter (ICI) with an induction motor (IM) is proposed in this article. Typical components are shared in drive and charge modes, resulting in savings of weight, volume, and cost. A two-stage ICI for AC induction motor powertrain with power factor correction (PFC) and battery charger functions is considered. Despite high voltage ripple on the DC link, a high bandwidth nonlinear controller can reject such a drawback and adequately provide a constant current or constant voltage charging process. The simulation results of 7 kW ICI are provided to validate the effectiveness and feasibility of the proposed system. Finite element analysis (FEA) determines the torque and losses of IM in charging mode.

scholarly journals Control of a battery charger for electric vehicles with unity power factor

2021 ◽  
Vol 2 (1) ◽  
pp. 32-44
Author(s):  
Federico M. Serra ◽  
Cristian H. De Angelo
Keyword(s):  
Electric Vehicles ◽  
Power Factor ◽  
Closed Loop ◽  
Constant Current ◽  
Nonlinear Controller ◽  
Battery Charger ◽  
Unity Power Factor ◽  
Single Model ◽  
Electric Vehicle Battery ◽  
Battery Bank

A nonlinear controller for an electric vehicle battery charger is proposed in this work. The controller allows charging the battery bank with constant current and constant voltage charging profile, while ensuring unity power factor and low distortion in the grid current. A single model is made for the complete system and the controller is designed using interconnection and damping assignment. The proposed controller ensures the closed-loop stability and allows decoupling the system avoiding disturbances in the electric grid and battery bank. The proposal is validated with simulation results.

scholarly journals A new high speed charge and high efficiency Li-Ion battery charger interface using pulse control technique

2022 ◽  
Vol 12 (2) ◽  
pp. 1168
Author(s):  
Mustapha El Alaoui ◽  
Karim El Khadiri ◽  
Rachid El Alami ◽  
Ahmed Tahiri ◽  
Ahmed Lakhssassi ◽  
...  
Keyword(s):  
High Speed ◽  
High Efficiency ◽  
Control Technique ◽  
Constant Current ◽  
Li Ion Battery ◽  
Pulse Control ◽  
Battery Charger ◽  
Small Surface ◽  
Charging Mode ◽  
Li Ion

A new Li-Ion battery charger interface (BCI) using pulse control (PC) technique is designed and analyzed in this paper. Thanks to the use of PC technique, the main standards of the Li-Ion battery charger, i.e. fast charge, small surface area and high efficiency, are achieved. The proposed charger achieves full charge in forty-one minutes passing by the constant current (CC) charging mode which also included the start-up and the constant voltage mode (CV) charging mode. It designed, simulated and layouted which occupies a small size area 0.1 mm2 by using Taiwan Semiconductor Manufacturing Company 180 nm complementary metal oxide semi-conductor technology (TSMC 180 nm CMOS) technology in Cadence Virtuoso software. The battery voltage VBAT varies between 2.9 V to 4.35 V and the maximum battery current IBAT is 2.1 A in CC charging mode, according to a maximum input voltage VIN equal 5 V. The maximum charging efficiency reaches 98%.

Design and analysis of an X–Y parallel nanopositioner supporting large-stroke servomechanism

2014 ◽  
Vol 229 (2) ◽  
pp. 364-376 ◽  
Author(s):  
Pengbo Liu ◽  
Peng Yan ◽  
Zhen Zhang
Keyword(s):  
Natural Frequency ◽  
High Performance ◽  
Transfer Functions ◽  
Mechanical Design ◽  
Input Output ◽  
Element Analysis ◽  
Flexure Mechanism ◽  
High Bandwidth ◽  
Parallel Kinematic ◽  
Large Work

In this paper, we consider the design and analysis of an X–Y parallel piezoelectric-actuator-driven nanopositioner with a novel two-stage amplifying mechanism, where the mechanical design is optimized to achieve a large stroke and high-natural frequency for the purpose of high-performance servomechanism. The parallel kinematic X–Y flexure mechanism provides good geometric decoupling. The kinematic and dynamic analysis shows that the proposed design has a large work space and high bandwidth, which is further verified by finite-element analysis. The analysis results demonstrate that the designed nanopositioner has a large workspace more than 200 µm and a high-natural frequency at about 760 Hz. Furthermore, the dynamical model of the nanopositioner, including the dynamics of the PZT actuators, is also generated from the perspective of input/output transfer functions, and the parameters are identified by frequency-response experiments, which can be used for nano precision servomechanism.

Modeling of Pneumatic Actuator System for High Performance Nonlinear Controller Design

2004 ◽  
Author(s):  
Meihua Tai ◽  
Ke Xu
Keyword(s):  
Force Control ◽  
High Performance ◽  
Controller Design ◽  
Pneumatic Actuator ◽  
Nonlinear Controller ◽  
Detailed Model ◽  
Pneumatic Actuators ◽  
High Bandwidth ◽  
Actuator System ◽  
Electrical Motors

Modern applications in robotics such as teleoperations and haptics require high performance force actuators. Pneumatic actuators have significant advantages over electrical motors in terms of force-to-mass ratio. However, position and force control of these actuators in applications that require high bandwidth is not trivial because of the compressibility of air and highly non-linear flow through pneumatic system components. In this paper, we develop a detailed model of a pneumatic actuator system comprised of a double acting cylinder and a proportional servo valve to be used in position, force or hybrid position and force control.

High-Performance V/f Control of Induction Motor and Its Stability

2012 ◽  
Vol 132 (9) ◽  
pp. 938-939
Author(s):  
Mineo Tsuji ◽  
Xiaodan Zhao ◽  
Sin-ichi Hamasaki
Keyword(s):  
Induction Motor ◽  
High Performance

Parallel Computing for Tire Simulations

2011 ◽  
Vol 39 (3) ◽  
pp. 193-209 ◽  
Author(s):  
H. Surendranath ◽  
M. Dunbar
Keyword(s):  
High Performance ◽  
Effective Means ◽  
Cost Effective ◽  
Turnaround Time ◽  
Careful Consideration ◽  
Rolling Contact ◽  
Element Analysis ◽  
Parallel Solvers ◽  
Design Changes ◽  
Highly Nonlinear

Abstract Over the last few decades, finite element analysis has become an integral part of the overall tire design process. Engineers need to perform a number of different simulations to evaluate new designs and study the effect of proposed design changes. However, tires pose formidable simulation challenges due to the presence of highly nonlinear rubber compounds, embedded reinforcements, complex tread geometries, rolling contact, and large deformations. Accurate simulation requires careful consideration of these factors, resulting in the extensive turnaround time, often times prolonging the design cycle. Therefore, it is extremely critical to explore means to reduce the turnaround time while producing reliable results. Compute clusters have recently become a cost effective means to perform high performance computing (HPC). Distributed memory parallel solvers designed to take advantage of compute clusters have become increasingly popular. In this paper, we examine the use of HPC for various tire simulations and demonstrate how it can significantly reduce simulation turnaround time. Abaqus/Standard is used for routine tire simulations like footprint and steady state rolling. Abaqus/Explicit is used for transient rolling and hydroplaning simulations. The run times and scaling data corresponding to models of various sizes and complexity are presented.

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