摘要：本文介紹閉環(huán)霍爾電流傳感器的工作原理及在核聚變裝置系統(tǒng)中的應(yīng)用，實(shí)現(xiàn)了對(duì)核聚變裝置供電系統(tǒng)中直流大電流的隔離測(cè)量、控制，解決了該裝置能量的穩(wěn)定供給問題。 敘詞：閉環(huán)；霍爾電流傳感器；核聚變裝置 Abstract：This article presents a principle of a close-loop Hall current sensor and an application of the sensor for a power system in a nuclear fusion equipment. The sensor is used to measure an output current of the power system and the output signal of the sensor is isolated between the primary current (The output current of the power system) and the secondary current (The output signal of the sensor). According to this application, we solve a problem to protect the high power system in a nuclear fusion equipment by limiting the output current of the system. Keyword：Close-loop; Hall current sensor; Power system in a nuclear fusion equipment