数字化UPS的电磁兼容设计

Electromagnetic Compatibility Design of Digital UPS

为提高控制系统的可靠性与稳定性,电磁兼容技术在UPS的设计过程中已成为必须考虑的问题.阐述了数字化UPS设计方案,分析了EMI的来源,并从干扰源的抑制、系统接地、电磁屏蔽、隔离技术、合理的结构布局和布线等方面进行了EMC设计的分析.结果表明设计的电路工作可靠、稳定,达到了预期的设计目的.

In order to enhance reliability and stability of control system, the EMC becomes an important factor in design of UPS. Based on the digital UPS design, the authors analyze the sources of EMI. And from the interference source suppression, system grounding, electromagnetic shielding, isolation technology, and rational layout and structure cabling, the EMC design is analyzed. The result shows that the circuit of design is reliable and stable, and the design has achieved the expected objective.