1、 I 摘要 本课题针对110kV变电站供电系统， 结合国内外变电站综合自动化技术的发展现状， 根据变电站的监控要求，对 110kV 变电站自动化系统进行了设计。在系统研究过程中， 重点进行了以下工作： 首先，讲述了国内外变电站综合自动化的发展情况，研究变电站自动化的目的和意 义，提出本论文变电站自动化系统研究设计的内容。其次，根据变电站原始资料和监控 要求，以及变电站自动化系统的设计原则，研究设计变电站自动化体系结构和功能。再 次，根据所给出的原始数据，综合变电站设计的原则和国家法律法规、制度，以及变电 站的监控要求，设计变电站的主回路接线；进行了变电站负荷的简要计算然后选择了基 本设备。随后
2、，简述 PLC 的工作原理和设计 PLC 自动控制系统的过程；阐述高压断路器 控制的重要性和 PLC 控制断路器的优势，设计利用 PLC 控制高压断路器；综合变压器备 用投切的重要性和操作过程，设计 PLC 控制的变压器备用自投系统。最后，总结了本论 文的设计内容及设计过程，总结了设计存在的问题和缺陷，以及以后努力的方向。 关键词：关键词：变电站；PLC；高压断路器；备用自动投切 I ABSTRACT This topic is for 110kV substation power supply system, combined with the development of substati
3、on automation technology at home and abroad. According to transformer substation monitoring requirements, 110kV substation automation system is for design. And the study is summarized as the follow steps First of all, covers domestic and foreign development of substation automation, purpose and sign
4、ificance of the research on substation automation, brings out the design of substation automation system. Secondly, according to the Sourcebook of substation and monitoring requirements, and substation automation system design principles, research and design the automation systems structure and func
5、tion. Third, according to the original data, integrating principles of substation design and national laws and regulations, systems, and the substation monitoring requirements, design the main circuit wiring of substation; simple calculations to select the basic equipment of substation load. Fourth,
6、 outline the operation process of PLC and design the PLC control system; according to the importance of high-voltage circuit breaker control and PLC control circuit breakers advantage, design using PLC control to high voltage circuit breaker; based on the importance of integrated bus coupling spare switching and operational processes, design the PLC control system of automatic bus transfer system. Finally, draw a conclusion of the papers design and design process, sum up the problems and de
