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- W2024785874 abstract "자기공명을 이용한 무선 전력 전송 시스템의 등가회로 모델이 제시되었고, 이를 통한 설계기법이 제안되었다. 두개의 코일로 구성된 간단한 트랜스포머의 등가회로를 확장하는 방법으로 본 시스템의 노드 방정식을 세웠고, 이로부터 효율을 높이기 위한 최적의 코일간 거리를 해석하였다. 손실이 있는 경우의 주파수 특성을 계산하기 위해, 상용 설계 시뮬레이터에 등가회로 모델을 심었다. 실제 시스템의 모델 파라미터를 추출하여 시뮬레이션 결과와 측정결과를 비교하였다. 이 해석으로부터, 자기공명 방식의 무선 전력 전송 시스템이 수 미터의 거리까지 높은 효율을 보일 수 있음을 알 수 있었고, 이때 임피던스 정합이 매우 중요하다는 것을 알 수 있었다. 개발된 모델을 통해 공진 코일이 더 많이 있는 경우와 같은, 유사한 시스템의 특성을 예측할 수 있다. A Simple equivalent circuit model is developed for a wireless energy transfer system via coupled magnetic resonances and a practical design method is also provided. Node equations for the resonance system are built with the method, expanding on the equations for a transformer, and the optimum distances of coils in the system are derived analytically for optimum coupling coefficients for high transfer efficiency. In order to calculate the frequency characteristics for a lossy system, the equivalent model is established at an electric design automation tool. The model parameters of the actual system are extracted and the modeling results are compared with measurements. Through the developed model, it is seen that the system can transfer power over a mid-range of a few meters and impedance matching is important to achieve high efficiency. This developed model can be used for a design and prediction on the similar systems such as increasing the number of receiving coils and receiving modules, etc." @default.
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- W2024785874 date "2011-04-20" @default.
- W2024785874 modified "2023-10-11" @default.
- W2024785874 title "Circuit Model Based Analysis of a Wireless Energy Transfer System via Coupled Magnetic Resonances" @default.
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- W2024785874 doi "https://doi.org/10.6113/tkpe.2011.16.2.137" @default.
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