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现有配电网络普遍缺少智能设备的工作电源,已使用的一些工作电源也存在输出功率不够、有安全隐患、不适用改造工程等问题。针对这些问题,研究提升取能电源输出效率的方法。介绍了取能线圈的工作原理,比较不同铁心材料及截面积对输出功率的影响。提出一种多取能线圈排列组合方法,在不增加配电占空的前提下,可显著提高取能线圈的工作效率。根据此方法设计了一套智能设备自取能电源,试验表明其能够在20～800A电流范围内稳定输出3W功率,满足配电网智能设备对工作电源的要求。
Existing distribution networks generally lack the working power of smart devices. Some of the working power sources that are used also have problems such as insufficient output power, potential safety problems, and improper renovation projects. In response to these problems, research to improve the efficiency of the energy output of the power method. The working principle of energizing coil is introduced, and the influence of different core materials and cross-sectional area on output power is compared. A multi-energizing coil arrangement and combination method is proposed, which can obviously improve the working efficiency of the energizing coil without increasing the duty of the power distribution. According to this method, a smart device self-powered power supply is designed. The test shows that it can output 3W power in the range of 20 ~ 800A, which meets the requirements of power distribution intelligent equipment.