摘要
由于智能化电器的计算机控制系统处于恶劣的电磁环境中，因此，控制系统的抗干扰能力显得尤为重要。分析了智能化电器所受的干扰源，如电网谐波干扰、电器本身干扰、控制电器内部的干扰等。给出了一些实用的硬、软件抗干扰方法，如电源滤波技术、屏蔽技术、隔离技术；数字滤波技术、加入空指令等。硬件抗干扰有效率高，但要增加系统的成本和设备的投资；软件抗干扰则反之。
The paper analyses the interference sources of the intelligent electric apparatus, such as the interferences from harmonic of electric network, from the apparatus itself and inside of the controller. It presents some practical hardware and software anti interference methods, which include power source filter, shield, isolation and digital filter technology. The hardware anti interference has high efficiency and big investment, and the soft ware anti interference is on the contrary.
出处
《低压电器》
北大核心
1998年第4期44-46,49,共4页
Low Voltage Apparatus
关键词
智能电器
干扰
抗干扰
电器
intelligent electric apparatus interference anti interference
