http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Yang Qingxin (검색결과 5 건)
- 무료
- 기관 내 무료
- 유료
-
Wireless Synchronous Transfer of Power and Reverse Signals
Yang Li,Yumei Li,Shaojie Feng,Qingxin Yang,Weihao Dong,Jingtai Zhao,Ming Xue 전력전자학회 2019 JOURNAL OF POWER ELECTRONICS Vol.19 No.3
Wireless power transfer via coupled magnetic resonances has been a hot research topic in recent years. In addition, the number of related devices has also been increasing. However, reverse signals transfer is often required in addition to wireless power transfer. The structure of the circuit for a wireless power transfer system via coupled magnetic resonances is analyzed. The advantages and disadvantages of both parallel compensation and series compensation are listed. Then the compensation characteristics of the inductor, capacitor and resistor were studied and an appropriate compensation method was selected. The reverse signals can be transferred by controlling the compensation of the resistor. In addition, it can be demodulated by extracting the change of the primary current. A 3.3 MHz resonant frequency with a 100 kHz reverse signals transfer system platform was established in the laboratory. Experimental results demonstrate that wireless power and reverse signals can be transferred synchronously.
-
Yang Li,Liu Liu,Cheng Zhang,Qingxin Yang,Jianxiong Li,Xian Zhang,Ming Xue 전력전자학회 2018 JOURNAL OF POWER ELECTRONICS Vol.18 No.5
Recently, wireless power transfer (WPT) via coupled magnetic resonances has attracted a lot of attention owing to its long operation distance and high efficiency. However, the WPT systems is over-coupling and a frequency splitting phenomenon occurs when resonators are placed closely, which leads to a decrease in the transfer power. To solve this problem, an adaptive frequency tracking control (AFTC) was used based on a closed-loop control scheme. An improved particle swarm optimization (PSO) algorithm was proposed with the AFTC to track the maximum power point in real time. In addition, simulations were carried out. Finally, a WPT system with the AFTC was demonstrated to experimentally validate the improved PSO algorithm and its tracking performance in terms of optimal frequency.
-
Wireless Synchronous Transfer of Power and Reverse Signals
Li, Yang,Li, Yumei,Feng, Shaojie,Yang, Qingxin,Dong, Weihao,Zhao, Jingtai,Xue, Ming The Korean Institute of Power Electronics 2019 JOURNAL OF POWER ELECTRONICS Vol.19 No.3
Wireless power transfer via coupled magnetic resonances has been a hot research topic in recent years. In addition, the number of related devices has also been increasing. However, reverse signals transfer is often required in addition to wireless power transfer. The structure of the circuit for a wireless power transfer system via coupled magnetic resonances is analyzed. The advantages and disadvantages of both parallel compensation and series compensation are listed. Then the compensation characteristics of the inductor, capacitor and resistor were studied and an appropriate compensation method was selected. The reverse signals can be transferred by controlling the compensation of the resistor. In addition, it can be demodulated by extracting the change of the primary current. A 3.3 MHz resonant frequency with a 100 kHz reverse signals transfer system platform was established in the laboratory. Experimental results demonstrate that wireless power and reverse signals can be transferred synchronously.
-
A Position Detection Method for Dynamic Wireless Inspection Robots Charging
Xue Ming,Yang Qingxin,Zhu Gaojia,Li Longnv 대한전기학회 2022 Journal of Electrical Engineering & Technology Vol.17 No.1
The paper proposes a new structure of the receiving coil, which features horizontal and vertical position detection of inspection robot, which eliminates the system dependence on complex detection control circuit and simplifi es the circuit design of the receiving end. The proposed design obtains the position information by comparing the induced voltage diff erence of the four-coil sets. Besides, the receiving coil is optimized in terms of the shape, dimension and the magnetic shielding structure by fi nite element analysis. Finally, the eff ectiveness of the receiving coil position detection is verifi ed by the experiment with misalignment disturbance. The results illustrate the eff ectiveness of the four-coil system to detect the load position and the position adjustment by the adjustment control system
-
Comparison of the comb cell structure of Apis dorsata (Hymenoptera: Apidae) in two areas of China
Deng Shangkao,Huang Rong,Meng Qingxin,Yang Shunhua,Zhao Wenzheng,Tian Yakai,Dong Xia,Dong Kun,Gong Xueyang 한국응용곤충학회 2023 Journal of Asia-Pacific Entomology Vol.26 No.2
The comb cell structure of Apis dorsata in different ecoregions is rarely reported. This study compared the dif ferences in the comb cell structure of Apis dorsata from Menghai of Yunnan Province and Chengmai of Hainan Province, China. Accordingly, parameters such as brood comb thickness, the width of ten consecutive brood cells, cell diameter, depth, inclination angle, and the side length of the cell mouth were measured. The results showed that within the same area, the widths of ten consecutive cells and single-cell diameter in the 0 ◦ direction were significantly bigger than that in the 60 ◦ and 120 ◦ directions, however, there was no significant difference for the same between the 60 ◦ and 120 ◦ directions. The average width of ten consecutive cells and the single-cell diameter showed significant differences between the two areas. These were significantly bigger in Menghai than in Chengmai. The average thickness of the brood comb, cell depth, and side length of the cell mouth were also significantly higher in Menghai than in Chengmai, however, the cell inclination angle showed no regional difference. These differences in the comb cell structure of Apis dorsata may be due to the difference in the ecological environment of the two areas. This study revealed the structural characteristics of the comb cells of Apis dorsata in different areas of China, increasing our biological knowledge of this bee species.
ScienceON연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
