Control of wireless power transfer system for dynamic charging of electric vehicles

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Position Control of Hybrid Stepper Motor Using Brain Emotional Controller

AbstractIn order to control the position of hybrid stepper motor and improve its performance, direct torque control strategy is adopted. The main idea of this paper is to present the implementation of an emotional controller for position control of hybrid stepper motor drive. The proposed controller is called Brain Emotional Learning Based Intelligent Controller (BELBIC). This controller is a computational model of emotional processing mechanism in the brain. The effectiveness of the proposed BELBIC controller-based hybrid stepper motor drive is verified by simulation results

Theoretical and experimental comparison of two interoperable dynamic wireless power transfer systems for electric vehicles

The paper discusses two wireless power transfer systems for the charge of electric vehicles during the motion. The systems are conceived to be interoperable with the same receiver structure. Both systems are supplied by means of the same power electronics architecture and are based on the series-series compensation of the coils. In one of the presented systems a high-frequency transformer is used at the transmitter side. The two solutions are analyzed and compared pointing out their advantages and drawbacks. Results of experimental tests are presented to demonstrate the operations of both systems

Sensorless control of the charging process of a dynamic inductive power transfer system with interleaved nine-phase boost converter

The paper proposes a technique for the control of the charging process in a dynamic inductive power transfer system for automotive applications. This technique is based on an impedance control loop on the receiver side. The proposed control allows to carry out the different phases of the charging process in absence of a communication link between ground and vehicle side. The charging process starts with a sensorless procedure for the identification of the actual presence of the vehicle over the receiver. The same control technique introduces several advantages in terms of interoperability between systems having different requirements in terms of power demand. A 11 kW prototype has been implemented based on a transmitter 1.5 meters long as compromise solution between the long track coil and the lumped one. The power management of the receiver side is provided by a nine-phase interleaved boost converter. The experimental results prove the effectiveness of the proposed control together with a good matching with the developed theoretical equations set for the system description

Single-stage grid-connected flyback inverter with zero current switching for AC module application

In this paper, a new flyback inverter with simple auxiliary circuit is presented. With adding the auxiliary circuit to the main circuit, the energy stored in the transformer’s leakage inductance is recovered and primary switch is soft switches. In this paper, the operation of the flyback inverter with proposed auxiliary circuit is investigated. Furthermore, some considerations for the design of the flyback inverter are presented. Performance of the flyback micro inverter is proved using simulation results

Charging Process Control of Dynamic Wireless Power Transfer System with Active Rectifier and without Wireless Communication System

In this paper a strategy for charging process control of a dynamic wireless power transfer system is introduced. The control scheme is composed of both transmitter and receiver controls. A current control is employed in the transmitter side in order to control the transmitter current in misalignment condition. In the receiver, a power control is used. According to the power demanded by the vehicle, the control in the receiver, regulates the transmitter voltage using an active rectifier. The operation of the control in both transmitter and receiver is without any communication link between two sides. The behaviors of the quantities of the system in different reference powers, mutual inductances and frequencies are investigated. Furthermore, the proposed control scheme is simulated in order to validate the theoretical analysis

Primary-Side Control of a Wireless Power Transfer System with Double-Sided LCC Compensation Topology for Electric Vehicle Battery Charging

In this paper, the primary side control of a Wireless Power Transfer (WPT) system used for battery charging application is presented. This control technique provides load-independent constant voltage (CV) and constant current (CC)during the charging process under zero phase angle (ZPA) condition and at the resonant frequency of the system. The transition between two charging modes is smooth and without the use of any additional switch. Furthermore, the control technique is simple and can be easily built. The theoretical analysis are presented in this paper to provide the proper design procedure for a double-sided LCC compensation circuit. Finally, the simulation results are presented to confirm the validity of the control technique

Single-stage grid-connected flyback inverter with zero current switching for AC module application

In this paper, a new flyback inverter with simple auxiliary circuit is presented. With adding the auxiliary circuit to the main circuit, the energy stored in the transformer’s leakage inductance is recovered and primary switch is soft switches. In this paper, the operation of the flyback inverter with proposed auxiliary circuit is investigated. Furthermore, some considerations for the design of the flyback inverter are presented. Performance of the flyback micro inverter is proved using simulation results

A Dynamic Wireless Charging System for Electric Vehicles Based on DC/AC Converters with SiC MOSFET-IGBT Switches and Resonant Gate-Drive

This paper presents a high-performance dynamic Wireless Power Transfer (WPT) system for electric vehicles, which has high efficiency and the potential for large scale deployment. The detailed single stage 22kW DC/AC converter design of the transmitter side is presented. The converter is connected to a series-series WPT compensated system and has features like hybrid switches with fast 0-Ω gate-drive circuit for the SiC MOSFET and resonant gate-drive circuit for the IGBT, which allows operation without ZVS switching. Experimental results are presented to confirm the correct operation of the converter

A coupled mechanical-electrical simulator for the operational requirements estimation in a dynamic IPT system for electric vehicles

The paper presents a simulation tool for the study of a dynamic IPT system. This simulator is able to provide information about the electrical components in function of the dynamic behaviour of the vehicles during the charge operations. The results are used to investigate different possibilities for the improvement of the interfacing between the IPT system and the electrical grid to which it is connecte