摘要
在充分调研地区电网继电保护整定国内外研究现状基础上,确定了系统主要功能和整体结构,给出了短路电流计算与保护整定计算相结合的同步计算算法,建立了各种保护整定计算数学模型,提出了系统阻抗自动计算算法;以Microsoft Visual Studio 2005为开发平台,以SQL Server2000为网络数据库,设计了具有拓扑分析、短路计算、保护整定、图形建模、日志文件自动生成和数据库文件定期自动备份等功能的地区多级电网继电保护整定管理系统;给出了整定计算实例,验证了系统整定计算的有效性和正确性。
Based on surveying the research status of protective relays setting of regional power grid in the world, the systemg main functions and integrated structure are determined. The synchronized calculation algorithm which is combined with short - circuit current calculation and protection setting calculation is offered. Various protection setting calculating mathematical models are founded. The system＇ s imped- ance automatic calculation algorithm is presented. Microsoft Visual Studio 2005 is used as the develop- ment platform and SQL Server 2000 is used as the network database. The protective relays setting and managing system of multi - level regional power grid is designed. The system should have functions of to- pological analysis, short circuit calculation, protection setting, graphic modeling, log file＇ s automatic generation and database file＇ s regular backup. The setting calculation examples are offered. The system software＇s validity and correctness are verified.
出处
《节能技术》
CAS
2013年第4期313-316,共4页
Energy Conservation Technology
基金
教育部高等学校博士学科点专项科研基金(20102304120024)
中央高校基本科研业务费专项资金资助(HIT.NSRIF.201145)
哈尔滨市科技创新人才研究专项资金项目(2012RFLXG021)
关键词
地区多级电网
继电保护整定
阻抗自动计算
保护整定数学模型
multi - level regional power grid
protective relays setting
impedance automatic calculation
the mathematical model of protection setting
