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通过定义逻辑运行符、逻辑函数和变量实现逻辑方程,采用虚拟机在微机保护中实现可编程序功能。根据微机保护特点和应用的需求,提出微机保护应采用IEC61131-3标准化可编程序功能可提高效率,便于维护。使用标准中LD和FBD语言作为通用编程语言,使微机保护中的可编程序功能增强,实现更复杂的逻辑运算功能,给微机保护的功能扩充提供了更大的空间。
Through the definition of logical operators, logic functions and variables to achieve the logic equation, the use of virtual machines in computer protection to achieve programmable functions. According to the characteristics of computer protection and application requirements, put forward computer protection IEC61131-3 standardized programmable functions can be used to improve efficiency and ease of maintenance. Using standard LD and FBD languages as a common programming language, the programmable functions in microcomputer protection are enhanced, more complex logic operation functions are provided, and more space is provided for the function expansion of microcomputer protection.