Title :
The power converter stage of a powerful airborne time domain electromagnetic system
Author :
Saini, Hardeep Singh ; Martinez, J.M. ; Lopes, Luiz A. C.
Author_Institution :
Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, QC, Canada
Abstract :
Power electronic converters are an essential part of airborne time domain electromagnetic (TEM) systems used in mineral exploration industry. In this paper, a LabVIEW based converter control is proposed and implemented to achieve better control of the transmitter (Tx) coil current. The converter topology and proposed control is used to achieve the targeted fall time (100μs) at the end of current pulse. An optimized LabVIEW code and constant ON-Time current control is implemented to achieve sampling times as low as 2 μs. The comparison of experimental results with MATLAB simulation results validates the effectiveness of the control scheme. The proposed system utilizes reduced number of elements and deploys FPGA based faster and flexible control.
Keywords :
coils; electric current control; field programmable gate arrays; mineral processing industry; power convertors; transmitters; virtual instrumentation; FPGA; LabVIEW based converter control; LabVIEW code; MATLAB simulation; TEM systems; airborne time domain electromagnetic system; airborne time domain electromagnetic systems; converter topology; current pulse; mineral exploration industry; on-time current control; power electronic converters; transmitter coil current; Airborne electromagnetic systems; DC-DC converter; LabVIEW; current control; mineral prospection;
Conference_Titel :
Power Electronics, Machines and Drives (PEMD 2014), 7th IET International Conference on
Conference_Location :
Manchester
Electronic_ISBN :
978-1-84919-815-8
DOI :
10.1049/cp.2014.0513
