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50 kW工程样机,野外已实现1 000 V/50 A的输出.
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.
作者
王旭红
张一鸣
刘蔚
WANG Xuhong;ZHANG Yiming;LIU Wei(Faculty of Information Technology,Beijing University of Technology,Beijing 100124,China)
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
2019年第3期355-365,共11页
Journal of Shanghai Jiaotong University
基金
随钻核磁测井仪发射模块研制(XDA14020403)
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
multi-transient electromagnetic method
soft-switching
high-power
phase-shift full bridge
electromagnetic transmitter
