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地面电磁探测系统(SEP)发射机主要基于高压大功率开关电源原理研制,其主拓扑器件变压器设计的优劣关系到整个发射机工作的状态。本文基于20KHZ发射机高压大功率和半导体功率器件承受能力的特殊要求,设计出一款20KHZ双输入双输出的大功率变压器。利用ANSYS Maxwell有限元分析法对变压器进行三维建模,解析了变压器内部电磁场的分布。同时对变压器实体进行了设计和实验,将其投入到发射机系统中使用,并进行了相关野外勘探实验,仿真和实验结果证明该变压器设计合理,纹波小、损耗低、温升低、效率高,整体运行稳定可靠。
Ground electromagnetic detection system (SEP) transmitter is mainly based on the principle of high-voltage high-power switching power supply developed, the main topology of the transformer design is related to the pros and cons of the entire transmitter state of operation. Based on the special requirements of 20KHZ transmitter high-voltage high-power and semiconductor power devices, a 20KHZ dual-input and two-output high-power transformer is designed. Using ANSYS Maxwell finite element analysis of three-dimensional modeling of the transformer, the analysis of the distribution of the electromagnetic field inside the transformer. At the same time, the transformer entity was designed and experimented, put into transmitter system, and related field exploration experiments were carried out. Simulation and experimental results show that the transformer has reasonable design, small ripple, low loss, low temperature rise, High, the overall operation is stable and reliable.