DEVELOPMENT OF AUTOMATIC CONTACTLESS POWER TRANSMITTING SYSTEM FOR ELECTRIC WHEEL CHAIR

提出了非接触式电能传输到电动汽车或轮椅的启动和驱动方法。通过将矩形线圈和螺旋线圈分别用于非接触式发电站的一次绕组和二次绕组。超过200瓦的电力被传输到一个装配式电动汽车电机装置。电动汽车是一款由CLP驱动的紧凑型原型车，装载了一个轻型电池。电池提供了电动汽车启动和加速时产生的部分暂态电流。此外，我们还提出了一种使用新型Meader型线圈的非接触式电力传输。曲线型线圈的特点是能有效地稳定传输功率不受负载位移的影响，并能抑制电磁噪声的发射。当发射机线圈的节距与接收器形状相对应时，发射功率最大。采用保证发射机和接收机线圈相对位置的电路实现了有源励磁系统。此外，还明确了系统的最佳磁通分布。

Starting and driving methods of contactless power transmissin to electric vehicles or wheel chair were proposed. By employing rectangular and spiral coils for primary and secondary windings, respectively, for contactless power station. Electric power over 200 watts was transmitted to a fabricated EV motor setup. The EV is a compact prototype driven by CLPS, loaded with a light-weight battery. The battery supplies a part of transient current arising from starting and acceleration of EV.Furthermore, we propose a contactless power transmission using a new meader type coil. Effectiveness for stabilizing the amount of the transmitted power against a load displacement and suppressing electromagnetic noise emission is the features of meander type coils. Maximum power is transmitted when the pitch of the transmitter coil corresponds to the receiver shape. An active excitation system was realized using circuit in which the relative position between transmitter and receiver coils are always assures. Furthermore the optimal distribution of magnetic flux was made clear for the system.