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A Novel Circuit of Marine Controlled-source Electromagnetic Transmitter

机译:船用控制源电磁变送器的新型电路

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摘要

The marine electromagnetic transmitter sends high-power variable-frequency electromagnetic waves to acquire seabed structure and distribution law of mineral resources. The traditional transmitter has some shortcomings, such as small power, low efficiency, and poor load adaptability. In this article, a novel transmitter circuit composed of zero voltage zero current switching (ZVZCS) controlled-source circuit is proposed, which overcomes the limitations of a zero-voltage switching one, such as high freewheeling energy, duty ratio loss, and limited zero-voltage switching load range for the lagging-leg switches. Current in primary winding during the freewheeling period is reduced to zero by using a blocking capacitor and a saturable reactor, realizing zero-current switching turn-on for leading-leg switches, as well as zero-current switching for lagging-leg switches. Finally, the proposed circuit is verified by a 200-A marine transmitter.
机译:船用电磁发射器发送大功率变频电磁波以获取海床结构和矿产资源分布规律。传统的发射器有一些缺点,如功率小,效率低,负载适应性差。本文提出了一种由零电压零电流开关(ZVZCS)受控源电路组成的新型发射器电路,克服了零电压开关一个的局限性,如续流能量高,占空比损耗大,零位受限等。滞后开关的高电压开关负载范围。通过使用隔离电容器和可饱和电抗器,在续流期间将初级绕组中的电流减小到零,从而实现了前导脚开关的零电流开关导通以及滞后脚开关的零电流开关导通。最后,通过200A船用发射机对所提出的电路进行了验证。

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