现代电子技术
現代電子技術
현대전자기술
Modern Electronics Technique
2015年
18期
49-52
,共4页
刘凡齐%张秀霞%王君瑞%张新闻
劉凡齊%張秀霞%王君瑞%張新聞
류범제%장수하%왕군서%장신문
继电保护%知识库%推理机%整定计算
繼電保護%知識庫%推理機%整定計算
계전보호%지식고%추리궤%정정계산
relay protection%knowledge base%inference machine%setting calculation
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.
繼電保護整定計算是保障配電網穩定運行的主要辦法與措施.設計瞭利用專傢繫統的繼電保護整定計算繫統,其中知識庫的錶徵方式採用產生式錶徵法、麵嚮對象錶徵法和框架錶徵法相融閤的方法,增彊瞭整定計算知識庫的完整性;繫統推理機方式採用正嚮與反嚮推理的混閤方式,有效提高瞭整定計算繫統的計算速率.利用專傢繫統改進知識庫的錶徵方法與推理機的混閤工作原理,設計瞭繼電保護整定計算模塊,併針對實際電廠模型,驗證瞭設計繫統的準確性.
계전보호정정계산시보장배전망은정운행적주요판법여조시.설계료이용전가계통적계전보호정정계산계통,기중지식고적표정방식채용산생식표정법、면향대상표정법화광가표정법상융합적방법,증강료정정계산지식고적완정성;계통추리궤방식채용정향여반향추리적혼합방식,유효제고료정정계산계통적계산속솔.이용전가계통개진지식고적표정방법여추리궤적혼합공작원리,설계료계전보호정정계산모괴,병침대실제전엄모형,험증료설계계통적준학성.
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.