Efficiency investigation of SS and SP compensation topologies for wireless power transfer

Rehman, Masood; Nallagownden, Perumal; Baharudin, Z.

doi:10.11591/ijpeds.v10.i4.pp2157-2164

Cited by 19 publications

(15 citation statements)

References 20 publications

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“…This is more related to the quality factor of the components themselves and the choice of the more favorable operation point, which may be different for each topology, similarly to what happens with the output power itself. This is exemplified by a case study [96] where the SP efficiency is reported to be better than that of the SS-compensation when lower magnetic coupling coefficients, resulting from asymmetry in the coils, are observed, but worse otherwise.…”

Section: Other Circuit Compensation Topologiesmentioning

confidence: 93%

A Review on Power Electronics Technologies for Electric Mobility

et al. 2020

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Concerns about greenhouse gas emissions are a key topic addressed by modern societies worldwide. As a contribution to mitigate such effects caused by the transportation sector, the full adoption of electric mobility is increasingly being seen as the main alternative to conventional internal combustion engine (ICE) vehicles, which is supported by positive industry indicators, despite some identified hurdles. For such objective, power electronics technologies play an essential role and can be contextualized in different purposes to support the full adoption of electric mobility, including on-board and off-board battery charging systems, inductive wireless charging systems, unified traction and charging systems, new topologies with innovative operation modes for supporting the electrical power grid, and innovative solutions for electrified railways. Embracing all of these aspects, this paper presents a review on power electronics technologies for electric mobility where some of the main technologies and power electronics topologies are presented and explained. In order to address a broad scope of technologies, this paper covers road vehicles, lightweight vehicles and railway vehicles, among other electric vehicles.

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Section: Other Circuit Compensation Topologiesmentioning

confidence: 93%

A Review on Power Electronics Technologies for Electric Mobility

et al. 2020

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“…We used SP topology to simplify the battery management system. Since SP is more efficient than SS when the Tx coil is bigger than Rx, series capacitor (C s ) and parallel capacitor (C p ) were connected to the Tx and Rx coil, respectively [33]. The values of primary and secondary capacitors are calculated using Equation (2).…”

Section: Wireless Power Transfer (Wpt) Systemmentioning

confidence: 99%

A Wireless Power Transfer Based Implantable ECG Monitoring Device

Kim

et al. 2020

Energies

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Implantable medical devices (IMDs) enable patients to monitor their health anytime and receive treatment anywhere. However, due to the limited capacity of a battery, their functionalities are restricted, and the devices may not achieve their intended potential fully. The most promising way to solve this limited capacity problem is wireless power transfer (WPT) technology. In this study, a WPT based implantable electrocardiogram (ECG) monitoring device that continuously records ECG data has been proposed, and its effectiveness is verified through an animal experiment using a rat model. Our proposed device is designed to be of size 24 × 27 × 8 mm, and it is small enough to be implanted in the rat. The device transmits data continuously using a low power Bluetooth Low Energy (BLE) communication technology. To charge the battery wirelessly, transmitting (Tx) and receiving (Rx) antennas were designed and fabricated. The animal experiment results clearly showed that our WPT system enables the device to monitor the ECG of a heart in various conditions continuously, while transmitting all ECG data in real-time.Energies 2020, 13, 905 2 of 16 heart represented in a waveform and several features related to the cardiac cycle. Many heart diseases such as ischemic heart disease, arrhythmia, hypertrophy, and cardiomyopathies can be diagnosed by analyzing ECG waveform features [4]. However, the symptoms of arrhythmia are not continuous and appear intermittently. Thus, accurate diagnosis of AF using ECG at the specific time of monitoring would be difficult [5].To increase the accuracy of AF diagnosis, various types of ambulatory ECG monitoring devices in the form of portable, patch, wearable, and implantable to enable continuous recording have been researched and developed [6]. Each type of those devices has different advantages and disadvantages. The portable Holter monitor can measure the most comprehensive 12 leads ECG using several electrodes for 24 to 48 h. While the Holter monitors have been used in hospitals successfully, it is difficult to use them in everyday life due to short operating time and the inconvenience of wires and gel electrodes. The wearable 1 lead patch-type devices have better usability for daily life monitoring, but they also have the disadvantage of using gel electrodes or adhesives despite being non-invasive and leadless. A wearable watch type device such as Kardiaband (AliveCor, USA) for Apple Watch has been proposed recently to enhance portability and mobility. However, those watch-type devices are only capable for on-demand measurement meaning that the ECG measurement is only performed when users initiate the measurement. The ECG measures the potential difference caused by polarization and depolarization in the heart, and thus two electrodes should be placed far from each other to increase the signal quality against noise. This implies the ECG can only be measured when the user touches the electrodes with both hands. Thus, convenience and continuity of measurement are yet to be solved by these device...

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“…If the inductance for a greater transfer distance is increased, the efficiency will decrease due to a higher loss of parasite resistance and an increase in the number of windings. [25].…”

Section: Transmitter and Receiver Coilsmentioning

confidence: 99%

Wireless charging scheme for medium power range application systems

Karthikeyan

Koley

Bagchi

et al. 2020

IJPEDS

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Wireless power transmission (WPT) has attracted a wide variety of subjects in various disciplines and has also become a highly active research field due to its capacity to facilitate charging systems. Wireless power transmission will be compulsory to use soon as this technology enables electrical energy to be transmitted from a power source to an electrical load over an air gap without connecting wires. Wireless power transmission has been developed in the low power (1W to 10W) and high power (100W-500W) region. While the low power region development focuses on powering medical transplants and mobile charging, the higher end of the power spectrum is being developed for the electric vehicle (EV) applications. However medium power range (10W to 100W) is relatively unexplored due to lack of proper applications. The commercial WPT scheme is mainly used for the charging of lithium-ion batteries. Sensitive medium power loads like Lithium Polymer (LiPo) batteries do not have a wireless modular charging system. This paper discusses a proposed scheme for wireless charging of medium-range loads. LiPo batteries are used as the targeted charging load. A minimalistic approach has been considered while designing the electronics for efficiency improvement and a compact, modular scheme. The proposed scheme has been developed for drone and robotics applications and the results are validated.

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Efficiency investigation of SS and SP compensation topologies for wireless power transfer

Cited by 19 publications

References 20 publications

A Review on Power Electronics Technologies for Electric Mobility

A Review on Power Electronics Technologies for Electric Mobility

A Wireless Power Transfer Based Implantable ECG Monitoring Device

Wireless charging scheme for medium power range application systems

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