A Wide-Frequency Constant-Amplitude Transmitting Circuit for Frequency Domain Electromagnetic Detection Transmitter

Wang, Xiujuan; Fu, Zhihong; Yao, Wang; Wang, Wendong; Liu, Wei; Zhao, Jianhua

doi:10.3390/electronics8060640

Cited by 5 publications

(3 citation statements)

References 15 publications

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“…In the aspect of electromagnetic transmitting current control methods, a variety of schemes were proposed for magnetic source transmitters in electromagnetic instrument [7,8]. The widefield electromagnetic method was proposed and its transmitter had a 200 kW output [9,10].…”

Section: Introductionmentioning

confidence: 99%

Voltage Equalizing Strategy for Cascaded Constant Current Power Supply

Zhang,

Shi,

2024

IEEJ Transactions Elec Engng

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In order to detect the underground medium with large depth, the transmitter of electromagnetic sounding instrument has higher and higher power and voltage. A novel voltage equalizing strategy for cascaded constant current power supply using in electromagnetic transmitter was proposed in this paper. The cascaded topology of the transmitter has two isolated full‐bridge AC/DC converters, which had same input source and were connected in series on the output side. The mathematical model based on state space average method was analyzed. After simplifying the circuit, the state space equation was used to describe the circuit model. The stability and frequency characteristics of the system were analyzed. Aiming at the constant current output and the output voltage balance of the two converters, the system coupling model was established. The constant current controller and voltage equalizing controller were designed with decoupling method. A 300 W prototype was built and the experimental results verified the performance of the proposed method. © 2024 Institute of Electrical Engineer of Japan and Wiley Periodicals LLC.

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Section: Introductionmentioning

confidence: 99%

Voltage Equalizing Strategy for Cascaded Constant Current Power Supply

Zhang,

Shi,

2024

IEEJ Transactions Elec Engng

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“…Although this method can improve the resolution of shallow exploration, it increases the number and complexity of instruments, the cost, and the construction difficulties. Xiujuan Wang, Zhihong Fu et al used a high-voltage clamp to widen the frequency band, but it is mainly suitable for magnetic sources with small resistance and inductance [18]. Kim, Jungsik et al and Yongming Zao et al used resonance to enhance the amplitude of current, which is a simple and effective way [19]- [21].…”

Section: Introductionmentioning

confidence: 99%

Design of Broadband Resonant Transmission for Depth-Focused Waveform in GAFDEM Exploration

YU,

MENG,

SHEN

et al. 2024

IEICE Trans. Electron.

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The Ground-Air Frequency Domain Electromagnetic Method (GAFDEM) is a fast and effective semi-airborne electromagnetic exploration method for subsurface anomaly targets. Based on the depthfocused transmission waveform, this method can realize the highresolution detection of underground targets at specific depths. However, due to the high inductance and resistance parameters of the transmitting load in GAFDEM exploration, the transmission current of the depthfocused waveform decays rapidly in the middle and high-frequency bands, which restricts the detection signal intensity. To solve this problem, a broadband resonant circuit and its parameter design method are proposed. According to the typical transmission frequency range and load, the parameters are designed, and the circuit model is simulated and tested. The results show that the designed broadband resonant circuit can increase the transmission active power of the depth-focused waveform by more than 490%, reduce the reactive power by more than 37%, and increase the transmission current intensity of the target frequency by 2.64 times. Moreover, this circuit has good robustness. It can achieve a good resonance effect within the error range of ±10% of capacitor. This design provides an effective way for GAFDEM to enhance the intensity of high-frequency detection signals and improve the shallow exploration effect.

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“…In this area of electromagnetism, a novel AC magnetic transmitter current source circuit is proposed in [26] for the application of frequency domain electromagnetic method prospecting. The proposed current source circuit is able to generate high frequency and high constant amplitude currents, which are the main technical problems for the frequency domain electromagnetic method.…”

Section: Introductionmentioning

confidence: 99%

Industrial Applications of Power Electronics

Rodrigues¹,

Godina

Pouresmaeil

2020

Electronics

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Electronic applications use a wide variety of materials, knowledge, and devices, which pave the road to creative design, development, and the creation of countless electronic circuits with the purpose of incorporating them in electronic products. Therefore, power electronics have been fully introduced in industry, in applications such as power supplies, converters, inverters, battery chargers, temperature control, variable speed motors, by studying the effects and the adaptation of electronic power systems to industrial processes. Recently, the role of power electronics has been gaining special significance regarding energy conservation and environmental control. The reality is that the demand for electrical energy grows in a directly proportional manner with the improvement in quality of life. Consequently, the design, development, and optimization of power electronics and controller devices are essential to face forthcoming challenges. In this Special Issue, 19 selected and peer-reviewed papers discussing a wide range of topics contribute to addressing a wide variety of themes, such as motor drives, AC-DC and DC-DC converters, electromagnetic compatibility and multilevel converters.

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A Wide-Frequency Constant-Amplitude Transmitting Circuit for Frequency Domain Electromagnetic Detection Transmitter

Cited by 5 publications

References 15 publications

Voltage Equalizing Strategy for Cascaded Constant Current Power Supply

Voltage Equalizing Strategy for Cascaded Constant Current Power Supply

Design of Broadband Resonant Transmission for Depth-Focused Waveform in GAFDEM Exploration

Industrial Applications of Power Electronics

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