Analysis of Conducted Interference Mechanism of Pulse Heavy Load Circuit
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摘要: 文中针对水下航行器紧密空间内脉冲大负载回路传导干扰开展时域仿真研究。基于实际应用电路的工作原理, 建立了可对回路电源线上传导干扰进行仿真研究的时域电路模型。通过对干扰来源的分析, 分别建立了来自发电机整流系统和脉冲大负载2个不同干扰来源的简化电路模型, 利用线路阻抗稳定网络获得共差模干扰信号的流通回路, 并获得共差模干扰信号的时域波形及频谱特性曲线。通过参数调整对干扰信号波形仿真, 可分析该参数对传导干扰噪声的影响, 为进一步采取传导干扰抑制措施提供参考。Abstract: A time-domain simulation study is performed to investigate the conducted interference of a pulse heavy load loop within an enclosed space of an undersea vehicle. Based on the working principle of the actual application circuit, a time-domain circuit model that can simulate the conducted interference on the loop power cable is established. Two simplified circuit models of different sources of interference form the generator rectification system and the pulseheavy load are established respectively. A line impedance stabilization network is used to obtain the circulation loop of the common differential mode interference signal. The time-domain waveform and spectrum characteristics curve of a common differential mode interference signal is also obtained. Through the parameter adjustment, we obtain different simulated waveforms of the interference signal. Subsequently, the influence of the parameters on the conducted interference noise is analyzed. The findings of this study provide a theoretical reference that indicates further measures to suppress the conducted interference.
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Key words:
- undersea vehicle /
- pulse heavy load /
- conducted interference /
- rectifier system /
- parameter influence
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