基于串联谐振式全桥逆变射频发射机研制
Development of Radio-Magnetotelluric Transmitter in Full-Bridge Series Resonant Inverter
DOI: 10.12677/AG.2023.134036, PDF,   
作者: 刘庆斌：中南大学地球科学与信息物理学院，湖南 长沙；亓庆新：湖南五维地质科技有限公司，湖南 长沙
关键词: RMT；串联谐振；全桥逆变；发射电路；RMT； Series Resonant； Full-Bridge Inverter； Transmitter Circuit
摘要: Radio-magnetotelluric (RMT)是浅层近地表地球物理勘探的一种方法，但是发射功率与频率成反比例的技术难题制约了超浅层勘探的信噪比，为了提高RMT发射机的发射功率，采用电阻、电感和电容组成的RLC串联谐振式全桥逆变大功率发射电路，利用串联谐振下负载阻抗最低，提高发射电流。本文在基于串联谐振原理上，利用功率MOS器件实现全桥逆变技术；对谐振周期内全桥电路的各个状态进行分析，提出输出电流的计算式，设计了RCD保护电路和栅极驱动电路。在电路仿真验证的基础上研制了一款发射样机，通过测试实验能够实现10~200 kHz频率、峰值电流最高达28 A的发射，能够满足RMT发射机的要求。
Abstract: Radio-magnetotelluric (RMT) is a method for shallow near-surface geophysical exploration, but the technical problem that the transmit power is inversely proportional to frequency restricts the signal-to-noise ratio of ultra-shallow exploration, and in order to improve the transmit power of RMT transmitter, the RLC series resonant full-bridge inverter high-power transmit circuit composed of resistance, inductance and capacitance is used to utilize the series resonance. In order to improve the transmitting power of the RMT transmitter, the RLC series resonant full-bridge inverter high-power transmitter circuit with resistor, inductor and capacitor is used to increase the transmitting current by using the lowest load impedance under series resonance. In this paper, based on the principle of series resonance, the full-bridge inverter technology is implemented using power MOS devices; each state of the full-bridge circuit during the resonant cycle is analyzed, the calculation equation of the output current is proposed, and the RCD protection circuit and the gate drive circuit are designed. Based on the circuit simulation and verification, a transmitter prototype is developed, which is able to achieve 10~200 kHz frequency and peak current up to 28 A through test experiments, and can meet the requirements of RMT transmitter.
文章引用：刘庆斌, 亓庆新. 基于串联谐振式全桥逆变射频发射机研制[J]. 地球科学前沿, 2023, 13(4): 364-379. https://doi.org/10.12677/AG.2023.134036

参考文献

[1] Turberg, P., Müller, I. and Flury, F. (1994) Hydrogeological Investigation of Porous Environments by Radio Magne-to-Telluric-Resistivity (RMT-R 12-240 kHz). Journal of Applied Geophysics, 31, 133-143. [Google Scholar] [CrossRef] 
[2] 汤井田, 任政勇, 周聪, 张林成, 原源, 肖晓. 浅部频率域电磁勘探方法综述[J]. 地球物理学报, 2015, 58(8): 2681-2705.
[3] 原源, 庞成, 汤井田, 任政勇, 周聪. 基于非结构双网格的2D RMT双参数同步反演研究[J]. 地球物理学报, 2019, 62(6): 2150-2164.
[4] Bastani, M. (2001) Enviro-MT—A New Controlled Source/Radio Magnetotelluric System. Ph.D. Thesis, Acta Universitatis Upsaliensis, Uppsala.
[5] Bastani, M., Savvaidis, A., Pedersen, L.B. and Kalscheuer, T. (2011) CSRMT Measurements in the Frequency Range of 1-250kHz to Map a Normal Fault in the Volvi Basin, Greece. Journal of Applied Geophysics, 75, 180-195. [Google Scholar] [CrossRef] 
[6] Pedersen, L.B., Bastani, M. and Dynesius, L. (2005) Groundwater Exploration Using Combined Controlled-Source and Radiomagnetotelluric Techniques. Geophysics, 70, G8-G15. [Google Scholar] [CrossRef] 
[7] Xu, Y.F., Liu, L.H., Wu, K., Geng, Z. and Fang, G.Y. (2014) Research on Technology of Controlled Source Radio MagneTotelluric System’s Transmitter. Journal of Electronics, 31, 609-618. [Google Scholar] [CrossRef] 
[8] Saraev, A., Simakov, A., Shlykov, A. and Tezkan, B. (2017) Controlled Source Radiomagnetotellurics: A Tool for Near Surface Investigations in Remote Regions. Journal of Applied Geophysics, 146, 228-237. [Google Scholar] [CrossRef] 
[9] Tezkan, B. and Saraev, A. (2008) A New Broadband Radiomagnetotelluric Instrument: Applications to Near Surface Investigations. Near Surface Geophysics, 6, 245-252. (In Chinese) [Google Scholar] [CrossRef] 
[10] Shlykov, A., Saraev, A. and Tezkan, B. (2020) Study of a Permafrost Area in the Northern Part of Siberia Using Controlled Source Radiomagnetotellurics. Pure and Applied Geophysics, 177, 5845-5859. [Google Scholar] [CrossRef] 
[11] Rashid, M.H. (2016) Electric Renewable Energy Systems. Elsevier Inc., Amsterdam.
[12] 金晓毅, 邬伟扬, 孙孝峰. 串联谐振电流源高频链正弦波逆变器的工作原理和控制方法[J]. 电工技术学报, 2007, 22(4): 100-106.
[13] 徐应年, 赵阳, 黄友桥, 康勇. 简单、高效串联谐振逆变电源研究[J]. 高电压技术, 2008(1): 187-190+195. [Google Scholar] [CrossRef] 
[14] 杨凤彪, 杨怡君, 闫英敏, 赵霞. RC缓冲电路的优化设计[J]. 电气开关, 2008, 46(5): 51-52+70.
[15] 姜栋栋, 王烨, 卢峰. IGBT过电压产生机理分析及RC缓冲电路的设计[J]. 电力科学与工程, 2011, 27(4): 23-29.