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系统电磁兼容性预测不仅在方案阶段需要,在工程阶段仍然重要,是进行合理电磁兼容性设计,争取时间、减少费用的有效手段。系统电磁兼容性预测可以使用专业软件进行仿真计算、分析,在特殊情下也可以采用工程简化方法计算、分析,还可以用工程经验进行分析评估。在电磁兼容性预测计算、分析中,仿真软件一般考虑全面,简化方法计算相对快捷,建立简化且与实际接近的干扰源模型、传输特性模型以及敏感度域值模型是计算、分析准确程度的关键。本例中是用简化方法对实际系统电磁兼容性问题解决提供了理论依据,并进行了仿真和试验验证,结论一致。说明,除了用专业仿真软件进行预测计算,用工程简化方法计算也会常常遇到;实际电磁兼容工作中系统预测是重要的并且不一定非常复杂,供参考。
The system electromagnetic compatibility prediction is not only needed in the scheme stage, but also important in the engineering stage, which is an effective means to design a reasonable electromagnetic compatibility, gain time and reduce costs. System electromagnetic compatibility prediction can use professional software for simulation, analysis, in special cases can also be calculated using simplified engineering methods, analysis, engineering experience can also be used for analysis and evaluation. In the electromagnetic compatibility prediction calculation and analysis, the simulation software is generally considered in a comprehensive way, the calculation method of the simplified method is relatively fast, and the establishment of a simplified interference source model, the transmission characteristic model and the sensitivity domain value model are the key points for calculating and analyzing the accuracy . In this case, the simplified method is used to solve the electromagnetic compatibility problem of the actual system, and the simulation and experimental verification are carried out. The conclusion is the same. It shows that in addition to using professional simulation software to predict and calculate, engineering simplification method will often encounter the calculation; actual electromagnetic compatibility system prediction is important and not necessarily very complicated for reference.