This article presents a novel system to utilize conventional motor drives for wireless power transfer (WPT) supply auxiliary systems, such as Internet-of-Things devices or sensors in rotating systems. The method is use slip ring, which reduces reliability, an extra high-frequency converter next the drive, increases cost. development of wide-bandgap gallium nitride and silicon carbide transistors has increased switching frequencies with lower losses. voltage harmonics these high can be...

This article presents a novel contactless field excitation (CFE) system based on wireless power transfer (WPT), which utilizes the existing voltage source inverter (VSI) of motor drive for electrically excited synchronous motors (EESMs). In conventional CFE systems, an extra high-frequency converter is required to excite winding. this article, it proposed utilize switching harmonics VSI exciting winding while low-frequency modulated component used motor. system, variable carrier phase-shift...

Interleaving can be employed to reduce ripples in multiphase DC-DC converters although phases are operated under asymmetric conditions such as different input voltages or loads. To allow ripple minimization conditions, phase shifts between the switch timings of have appropriately adjusted. This study presents a method based on artificial neural networks (ANN) that provide required minimize conditions. obtain machine learning dataset, set optimal phaseshift angles minimizing common output...

This article presents an approach for concurrent power transfer to wired and wireless systems using just a single inverter. The utilizes novel carrier phase-shift (CPS) method that independently controls the inverter output voltages at fundamental switching frequencies. proposed can be cost-effective solution (WPT) used in contactless slip rings (CSRs), which auxiliary loads such as sensors, radars, IoT devices. There are two separate converters conventional CSR systems: One is motor drive,...

This article presents a novel multi-transmitter (Tx)/multi-receiver (Rx) inductive power transfer (IPT) system. Compared with the conventional single-Tx/single-Rx systems, multi-Tx/multi-Rx topologies increase reliability and fault tolerance. However, unequal distribution is challenging in these systems due to coupling differences, which prevents them from operating at rated or requires overdesigned modules. study proposes addition of middle-stage resonator (MSR) that balances by separating...

The aim of this article is to design a modular, fault-tolerant multi-transmitter (Tx)/multi-receiver (Rx) parallel-connected common dc-bus inductive power transfer (IPT) system replace slip rings in wind turbines or brushless exciters. In systems, current unbalance major issue that results thermal stresses and over voltages. article, two different new balancing methods are proposed: cross-coupled Rx modules intentional detuning Rx-side resonant frequency. These investigated both analytically...

In this paper, modular IPT systems which have receiver series/parallel compensation with common DC-Bus are investigated. For these systems, power sharing between the modules is vulnerable to system components such as mutual coupling transmitter and coils. It also observed that affected by topologies of receivers type electrical connection DC-Bus. Therefore, in study, a mathematical model presented reveal characteristics terms operating frequency inductance differences modules. Then verified...

In this paper a 1 kW series-series compensated, two transmitter four receiver common DC bus parallel connected inductive power transfer system is introduced. The aim to obtain modular with increased reliability and fault tolerance. designed replace slip rings brushless exciters of field excited synchronous machines, which require regular maintenance. A generalized critical coupling formula that avoids bifurcation presented. can be easily mounted around rigid shaft structure eddy-loss on the...