北京工业大学 信息学部, 北京 100124
出版日期:2019-03-28发布日期:2019-03-28通讯作者:张一鸣，男，教授，博士生导师，E-mail: ymzhang@bjut.edu.cn.作者简介:王旭红（1987-），男，河北省唐山市人，博士生，主要研究方向为开关电源及地球物理电磁法仪器研究.基金资助:随钻核磁测井仪发射模块研制(XDA14020403)Key Technology Study of Power Supply for Multi-Transient Electromagnetic Method Transmitter
WANG Xuhong,ZHANG Yiming,LIU WeiFaculty of Information Technology, Beijing University of Technology, Beijing 100124, China
Online:2019-03-28Published:2019-03-28摘要/Abstract
摘要： 提出了一种适用于多道瞬变电磁法(MTEM)发射机的新型有源软开关变换器，介绍了其拓扑结构与工作原理，解决了传统移相全桥变换器在轻载情况下不能实现软开关的问题，实现了功率拓展与效率提高.该变换器可根据输出功率的变化在无源软开关、单路有源软开关和双路有源软开关之间进行转换，实现了全负载范围内的零电压开关.该系统输出功率大、效率高、稳定性强，为其他有源电法勘探发射机的研制提供了有效思路.目前已研制出50kW工程样机，野外已实现1000V/50A的输出.
关键词: 多道瞬变电磁法, 软开关, 大功率, 移相全桥, 电磁发射机
Abstract: A novel active soft-switching converter is presented for an multi-transient electromagnetic method (MTEM) transmitter. The topology and operation principle of the MTEM transmitter are introduced in detail. Compared with the conventional converter, the proposed converter can operate in passive, single active and dual active soft-switching modes to achieve zero voltage switch over the entire load range, and the output power is greatly expanded. MTEM transmitter has the characteristics of large output-power, high-efficiency and strong-stability. The research has provided a solution for the development of other transmitters. At present, a 50kW prototype has been completed and achieves 1000V/50A output in the field.
Key words: multi-transient electromagnetic method, soft-switching, high-power, phase-shift full bridge, electromagnetic transmitter
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