中文摘要：

继电保护整定计算是保障配电网稳定运行的主要办法与措施。设计了利用专家系统的继电保护整定计算系统,其中知识库的表征方式采用产生式表征法、面向对象表征法和框架表征法相融合的方法,增强了整定计算知识库的完整性;系统推理机方式采用正向与反向推理的混合方式,有效提高了整定计算系统的计算速率。利用专家系统改进知识库的表征方法与推理机的混合工作原理,设计了继电保护整定计算模块,并针对实际电厂模型,验证了设计系统的准确性。

英文摘要：

Relay protection setting calculation is the main solution to guarantee stable operation of power distribution net-work. The relay protection setting calculation system was designed on the basis of expert system. The representation method of knowledge base is based on the fusion method of production representation,object-oriented representation and frame representa-tion,which can strengthen the integrity of the whole setting calculation knowledge base. The forward and backward inference mixed mode was adopted for system inference engine,which improved computation rate of setting calculation system. With all the above methods being made,Relay protection setting calculation module was designed and accuracy of designed system was verified.