CAJ | 학술논문

在高电压领域中，高压侧检测设备(如PT，CT）或传感器的输出信号需要传输到低压侧，光纤隔离式信号传输装置不仅能完成信号的传输，还能实现高低压的电气隔离，同时也具有很强的抗电磁干扰能力。利用电压-频率（V-F）转换芯片LM331和HFBR14XX系列光电器件设计出一套适合高电压直流测量信号的光纤隔离传输装置，并给出了具体的电路原理图。对其中的V-F转换电路进行了仿真，分析表明，其误差为0.01 V。
재고전압영역중，고압측검측설비(여PT，CT）혹전감기적수출신호수요전수도저압측，광섬격리식신호전수장치불부능완성신호적전수，환능실현고저압적전기격리，동시야구유흔강적항전자간우능력。이용전압-빈솔（V-F）전환심편LM331화HFBR14XX계렬광전기건설계출일투괄합고전압직류측량신호적광섬격리전수장치，병급출료구체적전로원리도。대기중적V-F전환전로진행료방진，분석표명，기오차위0.01 V。
In high-voltage fields, high-voltage side inspection equipment (such as CT, PT) or the output signal of the sensor needs to be transmitted to the low-voltage side, the fiber isolation-transmission device not only can complete the transmission of the signal and achieve electrical isolation, but also has a strong ability to re-sist electromagnetic interference. A set of fiber isolation- transmission device for high-voltage DC measure-ment signal is designed by using the voltage frequency conversion (VFC) chip LM331 and photoelectric con-verter HFBR14XX. The circuit also is given. The V-F converter circuit is simulated, and the analysis shows that its error is 0.01 V.