More than a century-old gasoline internal combustion engine is major contributor to greenhouse gases. Electric vehicles (EVs) have the potential achieve eco-friendly transportation. However, limitation in achieving this vision battery technology. It suffers from drawbacks such as high cost, rare material, low energy density, and large weight. The problems related technology can be addressed by dynamically charging EV while on move. In-motion reduce storage requirement, which could...

This paper proposes a novel double-grid-frequency-ripple-reducing technique for electric vehicle (EV) battery charger applications. In 1-φ EV chargers, due to double-frequency ripple, it is not possible control the current using single-power-stage approach. Hence, two-stage approach used. However, bulky inductor and capacitor are required current, which adds system's weight cost. The single-stage charging system described in this can charge with almost ripple-free without electrolytic...

This paper proposes a current-fed non-isolated soft-switching bidirectional dc/dc converter for interfacing energy storage to dc microgrid. The proposed employs half-bridge boost at front-end followed by an LCL resonant circuit aid in of semiconductor devices. A voltage doubler output is selected enhance the gain 2×. also adds suitable gain. Therefore, topology offers overall high without transformer or large number multiplier circuits. For buck operation, side first divided half with...

This paper presents a maximum efficiency point tracking algorithm for Wireless Power Transfer (WPT) to match the load impedance that of source impedance. Conventionally, is considered only resistive in literature. In most applications battery end and equivalent circuit consists reactive elements. Therefore, improve overall system, has be matched with this paper, power (MEPT) presented Proposed varies both frequency phase shift inverter output voltage minimize input power, whereas kept...

The performance of lithium-ion batteries is contingent on the operational temperature and applied current rate. Especially in electric vehicle application, repeated heavy-duty drive cycles impose intense thermal stress batteries, resulting safety concerns. This paper explains electrochemistry within battery analyzes dependence internal parameters rate based their electrochemical nature. In addition, this interdependence used equivalent circuit model to predict behavior under different...

This paper proposes a non-isolated soft-switching bidirectional dc/dc converter for interfacing energy storage in DC microgrid. The proposed employs half-bridge boost at input port followed by LCL resonant circuit to assist of switches and diodes, finally voltage doubler output enhance the gain 2x. may also add suitable converter. Therefore, overall high is obtained without transformer or large number multiplier circuit. For buck operation, side first divided half with capacitive divider...

Lithium-ion batteries present promising potential in electrified transportation due to their high-power density and long cycle life. However, during the life cycle, lithium-ion are subject degrading capacity power. This paper presents an online estimation approach of fade analyzes power using input-output response method. By processing waveforms response, one can predict actual internal resistance which characterizes battery health. In end, proposed method is validated experimentally....

In this paper, two topologies for SRM drive is proposed, namely five level asymmetric neutral point clamped and modular multilevel converter high speed power drive. For operation, back EMF of the motor increases to levels. Therefore, input voltage should be more than in order force current into winding. Multilevel can apply variable dc over a wide range. Additionally, it shape phase easily with multiple levels reduce frequency torque ripple, thereby minimizing vibration. Operation proposed...

Application of wireless power transfer while an electric vehicle (EV) is in motion can significantly reduce the battery storage capacity. A major challenge implementation dynamic (DWPT) automatic detection EV to avoid loss efficiency and alleviate any safety concerns. This paper proposes a novel coil method for segmented DWPT. Detection ahead its arrival will initiate energizing transmitter buried inside road enable just-in-time power. At low speeds, communication be reliable up coil....

This study investigates the electromagnetic field (EMF) emissions of a 100-kW Double-D (DD) wireless charging system (WCS). A shielding technique is proposed to suppress magnetic below limits set by International Commission on Non-Ionizing Radiation Protection (ICNIRP). The leakage pattern produced DD coil different than unipolar (circular, rectangular, etc.) pads and traditional eddy current based aluminum shields are not effective at suppressing this field. Therefore, methodically designed...

This paper describes a novel bridgeless converter topology based on ̈cuk for implementing the pulse charging algorithm fast of battery, so as to make Electric Vehicle compete with conventional IC engine vehicle. The notable features this are single stage power conversion, high efficiency, compactness and less weight. control strategy is also simple implement since input current follows voltage in discontinuous conduction mode topology. Hence shaping loop not required. All proposed suitable...

Misalignment in wirelessly charged electric vehicles is unavoidable as perfect alignment of the pickup coil on vehicle with respect to transmitter quite difficult. Notably, even a small misalignment leads significant reduction effective coupling. Due which this problem significance for maintaining high efficiency over complete range. This paper presents two auxiliary solution compensating lateral and longitudinal directions. Two coils are mounted receiver; both perpendicular each other....

This paper reports on implementation of sinusoidal battery charging technique for Wireless Power Transfer (WPT) with maximum efficiency control algorithm. In current technique, the varies continuously depending frequency and current. Therefore, to improve overall system, load impedance has be matched source frequency. this paper, an algorithm is presented maximize system. For concept A, both phase shift inverter output voltage minimize input power, whereas power kept constant by a dc-dc...

Traditional core loss estimation is based on the Steinmetz Equation subject to a sinusoidal excitation. The losses are segregated into three parts: hysteresis loss, eddy current and extra loss. information of maximum flux density fundamental frequency thereby neglecting effects harmonics which results in low accuracy. In order consider caused by harmonics, field reconstruction method (FRM) proposed reconstruct laminations. Fast Fourier Transformation (FFT) applied obtain harmonic components...

Switched reluctance machine (SRM) has attracted more attention recently for its simple structure and high reliability. In this paper, an analytical method solving the magnetic field in SRM is illustrated utilizing Schwarz-Christoffel conformal mapping method. With help of Matlab SC tools, a general radial flux with linear material characteristic analyzed. The density distribution along contour airgap obtained torque calculated using Maxwell stress tensor compared finite element results....

An improved field reconstruction method (IFRM) to model interior permanent magnet synchronous machine (IPMSM) is proposed reduce computation time. In modeling IPMSM with conventional FRM, in order include slotting effect, the basis function at various rotor positions has be obtained and stored which increases workload. The saturation effect can avoided by employing conformal mapping (CM) maps slotted stator into a slotless structure. As result, only one set of functions position would...

Lithium ion batteries show a promising potential in the area of electrified transportation due to their high power density and long cycle life among electrochemical cells. This article presents an online monitoring approach for capacity fade impedance lithium using impulse response technique. By analyzing waveforms response, one can predict which characterize battery health. In end, proposed method is validated by experimental results provides estimation tool describe aging effects batteries.

This paper presents an extended field reconstruction method (EFRM) that is developed to model interior permanent magnet synchronous machine (IPMSM), which known for its high power density and factor. Traditional a very convenient tool the modeling analysis of performance surface mounted (SPMSM). Regarding IPMSM, usually works under saturation, traditional FRM cannot be directly applied. An improved FRM, considers both saturation slottings effects, proposed in this study. Comparisons with...

This paper proposes a high frequency link multi-input DC-AC converter for renewable energy applications. It consists of boost interfacing uni-directional sources and bi-directional buck-boost the storage system. An LLC resonant is used to further DC voltage convert into AC. Finally, cycloconverter from AC line frequency. The features proposed system include reduced number power conversion stages, low part count, operation. High switching losses are eliminated using soft technique, thereby...

During the cycling of lithium-ion batteries, internal resistance increases due to deposition Solid Electrolyte Interface (SEI), which causes power fade batteries. In this paper, lithium ion batteries with different levels are compared, their is measured and used predict thermal behavior. Based on numerical methods, temperature rise heat generation presented under constant C-rate discharge pulse. Furthermore, calculated results validated through measurement. Finally, it can be concluded that...