| Harmonic Analysis and Suppression of High-frequency Welding Devices |
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| 作者姓名： | LUO Sheng-jin DU Xiong ZHOU Luo-wei |
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| 摘 要： | This paper analyzes the structure and line current waveform of 3-phase AC voltage regulation circuit. As an application of 3-phase AC voltage regulation circuit, a high-frequency welding device's simulation model and harmonic analysis of line current are presented. Results of simulation are compared to field measurements. The two are in a good agreement, so this simulation model is correct. Two single-tuning filters and one second-order HPF are designed according to the device's harmonic condition. Simulation results of the circuit with filters indicate decrease of the harmonics in current of power supply, and the waveform is close to sinusoidal wave, which prove correctness of the solution to harmonics pollution.
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| 关 键 词： | phase alternative current voltage regulation simulation model harmonic analysis LC filter design |
| 修稿时间： | 2004/10/10 0:00:00 |
Harmonic Analysis and Suppression of High-frequency Welding Devices |
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| LUO Sheng-jin,DU Xiong,ZHOU Luo-wei.Harmonic Analysis and Suppression of High-frequency Welding Devices[J].Storage & Process,2005(2):26-31. |
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| Authors: | LUO Sheng-jin DU Xiong ZHOU Luo-wei |
| |
| Abstract: | This paper analyzes the structure and line current waveform of 3-phase AC voltage regulation circuit. As an application of 3-phase AC voltage regulation circuit, a high-frequency welding device's simulation model and harmonic analysis of line current are presented. Results of simulation are compared to field measurements. The two are in a good agreement, so this simulation model is correct. Two single-tuning filters and one second-order HPF are designed according to the device's harmonic condition. Simulation results of the circuit with filters indicate decrease of the harmonics in current of power supply, and the waveform is close to sinusoidal wave, which prove correctness of the solution to harmonics pollution. |
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| Keywords: | phase alternative current voltage regulation simulation model harmonic analysis LC filter design |
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