A5027441998- Wireless Power Transfer Systems
- Advanced Battery Technologies Research
- Energy Harvesting in Wireless Networks
- Advanced DC-DC Converters
- Power Transformer Diagnostics and Insulation
- Thermal Analysis in Power Transmission
- Lightning and Electromagnetic Phenomena
- Power Systems Fault Detection
- Magnetic Properties and Applications
Jiangsu Frontier Electric Technology Co., Ltd. (China)
2018
Southeast University
2018
Nanjing Institute of Railway Technology
2018
Inductive power transfer (IPT) techniques are becoming popular in battery charging applications due to some unique advantages compared the conventional plug-in systems. A high-performance IPT charger should provide with an efficient profile consisting of constant current and voltage. However, a wide load range, it is hard realize initial load-independent (CC) subsequent voltage (CV) using single converter while maintaining nearly unity factor soft switching switches simultaneously. This...
Inductive-power-transfer (IPT) converters should desirably achieve nearly zero reactive circulating power, soft switching of power devices and load-independent constant output voltage or current with optimized transfer efficiency, lowest component ratings. However, the characteristic is dependent on IPT transformer parameters their compensation. The space-constrained restricts design low-order resonant circuit compensated converter, making converter hard to optimize. This paper will analyze...
A high-performance IPT charger should provide the battery required constant charging current and voltage efficiently in whole process. With a wide load range from profile, it is hard to realize first load-independent (CC) late (CV) one converter, whilst nearly zero reactive power soft switching of switches be realized simultaneously. To solve it, this paper systematically analyzed characteristics an double-sided LCC compensated converter proposed design method CC CV outputs at two zero-phase...
In order to study the temperature rise of winding hot spot when oil-immersed transformer is started at different ambient temperature, transient field cold start under conditions calculated based on finite element simulation method. The relationship between and during explored by analyzing calculation results, which provides a reference for development start-up strategies in environments contributes avoiding mechanical structure damage insulation aging caused temporary high low temperature.
Compensation is indispensable in inductive-power-transfer (IPT) converters, facilitating the characteristics of nearly zero reactive circulating power, soft switching realization and required load-independent constant-voltage (CV) or constant-current (CC) output to improve transfer efficiency decrease component ratings. However, relies on IPT parameters greatly. The space-constrained transformer poses a limitation design converter function makes hard optimize. This paper will analyze freedom...
Harmonics, which exist in power grid, introduce a large error the measurement of dielectric loss factor, cannot accurately reflect insulation level. In this paper, calculation method factor considering influence harmonics is proposed. The different harmonic content on analyzed by calculating under fundamental and conditions. results show that related to frequency. higher is, greater will be. Particularly when reaches 10%, difference corresponding frequencies increase rapidly. shows an...