关键词: 同步伺服控制器, 电磁兼容, 优化设计

Abstract: To solve the problems of interference emission level exceeding the standard and internal EMC in the synchronous servo controller, an electromagnetic compatibility (EMC) capacity optimization overall design method was introduced. In the limited space of the controller room, through reasonable design of the sub-cavity shielding structure and layout, reasonable grounding design and other hardware methods,the AC input filter failure caused by line coupling of AC and DC power supply was avoide,the strong interference emission and other issues were formed,and the formation of shielding was maximized,the internal and external interference were isolated.The anti-disturbance performance of the controller was improved by means of software methods, such as timing monitoring, data multiple address access, and signal multiple-redundancy acquisition and filtering.The test results show that,the prototype can meet the requirements of standard GJB 151B—2013 by using the EMC capacity optimization method.The method improves the EMC of the products in the design phase, and reduces the development cycle and cost.

Key words: synchronous servo controller, electromagnetic compatibility (EMC), optimization design