Nowadays, smart grid online monitoring systems are widely used in high-voltage (HV) power transmission networks, leading to the requirement of reliable supply units for equipment. In this article, we present a novel solution harvest energy from magnetic field around 110-kV line and transmit equipment on tower over 1.1 m insulation distance. Printed circuit board resonators covered by composite material forming first HV insulator with wireless transfer (WPT) capability. The prototype has...

In this paper, a Wireless Power Transfer (WPT) system parameter identification method that combines an artificial neural network and modeling is presented. During wireless charging, there are two critical parameters; specifically, mutual inductance load resistance, which change due to the movement of transmitter/receiver battery conditions. The these uncertain parameters essential prerequisite for implementation feedback control. proposed utilizes Artificial Neural Network (ANN) acquire...

In this article, a subharmonics switching technique named bifrequency pulse train (BF-PT) control for wireless battery charging system with tapped transmitter (Tx) winding is proposed to regulate the output power against variation of load and coupling coefficient. The Tx spilt into two subwindings: subwinding I connected inverter while II in open circuit. current voltage can be acquired by measuring induced II, respectively, without dual-side communication. BF-PT control, which contains...

In this paper, a hybrid control strategy is studied and implemented on an Inductive Power Transfer (IPT) system to simultaneously realize zero-voltage switching (ZVS) constant current (CC) voltage (CV) battery charging. A steady-state analysis of pulse frequency modulation was conducted, based the characteristic gain versus frequency, CC CV charging modes were promised. The ZVS inverter obtained by satisfying minimum requirement full discharge junction capacitor MOSFETs using commutation...

Wireless power transfer (WPT) has become a crucial feature in numerous electronic devices, electric appliances, and vehicles. However, traditional design methods for WPT suffer from drawbacks, such as time-consuming computations high error counts due to inaccurate model parameters. As artificial intelligence (AI) continues gain traction across industries, its ability provide quick decisions solutions makes it highly attractive system optimizations. In this paper, method optimizing parameters...

In common industrial practices, the Japan Electronics and Information Technology Industries Association (JEITA) guideline is widely adopted for battery temperature regulations. However, conventional JEITA-compliant temperature-regulated current control (TRCC) generally designed without considering charging speed. To address this issue, a multi-hysteresis TRCC (MTRCC) proposed in article. The MTRCC based on by dividing hysteresis band each reference from one to multiple. As result, number of...

Inductive power transfer (IPT) technology becomes highly attractive option for wireless battery charging applications. To fulfill the charge profile of packs, wide output voltage regulation is always necessary. In this paper, an improved LCC-S compensated IPT system utilizing variable frequency switched capacitor control put forward. Compared with traditional compensation topology, extra connected in series inductor to form a symmetrical T-network. Switched utilized regulate equivalent...

In this article, a power-split-based wireless charging system (WCS) with communication-free coordination control is proposed to combat wide load and coupling variations. By using magnetic integrated inductor, two power delivery channels are created from single receiver coil. Large portion of received energy directly delivered the load. Small amount converted by low-voltage low-power dc–dc converter regulate output voltage or current achieving constant (CV) (CC) operation. This proposal...

Low-temperature preheating, fast charging, and vehicle-to-grid (V2G) capabilities are important factors for the further development of electric vehicles (EVs). However, conventional two-stage chargers, EV charging/discharging instructions grid cannot be addressed simultaneously specific requirements, pulse heating variable-current charging can cause high-frequency power fluctuations at side. Therefore, it is necessary to design a bidirectional grid-friendly charger EVs operated under...

Misalignment between the magnetic coupled coils of inductive power transfer (IPT) system is inevitable, which significantly reduces capability and efficiency IPT system. In this paper, an intermediate coil dual decoupled receivers are employed to achieve high misalignment tolerance Besides, constant current (CC) output characteristic obtained. Thanks coil, inverter can be limited when receiver side moves out operating region (the mutual inductances close zero). With proposed method, design...

Wireless power transfer (WPT) is becoming increasingly critical for electronic devices and electric vehicles, making it essential to predict the magnetic field distribution during design process. However, traditional methods of predicting WPT suffer from numerous drawbacks, including time-consuming computations, inaccurate models, imprecise results. With rise Artificial Intelligence (AI), its ability deliver quick computations control makes highly attractive parameter optimization....

In many outdoor inductive charging applications, the objects can move quickly, and environment change unpredictably. It is therefore difficult to design a fast controller that tracks in mutual coupling between transmitter receiver. The diminished power delivery either leads incomplete or prolongs time. this paper, concept of zone impedance matching technique proposed. This pre-matches coil desired coefficients. Thus, transfer capability charger be maintained at reasonably high level over...