Full
Outline
The conventional power supply methods for rotary mechanisms have problems such as complex structures, monotonous functions and security risks. Aimed at these problems, a radial-flux rotational wireless power transfer (R-WPT) system with a rotation speed detection function was proposed. First, the relationship between the mutual inductance of a radial-flux coupling coil and rotation angle was deduced, and a circuit model of the R-WPT system was built. Second, an output voltage processing circuit was designed to convert the waveform, which was further used for motor control. Finally, an R-WPT experimental platform driven by a stepping motor was constructed and verified at different target speeds. Results show that the output voltage waveform well conformed to the expectation of deduced mutual inductance. With the voltage signal processing and the closed-loop speed control method based on the stepping motor, the starting process of the R-WPT device with speed regulation can be performed at higher target speeds, indicating the feasibility of the system.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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