考虑最大供电能力的链式供电结构自愈系统设计  

Design of chain power supply structure self-healing system considering maximum power supply capacity

作　　者：李科 许长清 马杰 孙义豪 郭新志 LI Ke;XU Changqing;MA Jie;SUN Yihao;GUO Xinzhi(State Grid Henan Electric Power Company Economic and Technological Research Institute,Zhengzhou 450052,China)

机构地区：[1]国网河南省电力公司经济技术研究院,河南郑州450052

出　　处：《电子设计工程》2024年第4期116-120,共5页Electronic Design Engineering

基　　金：国家电网有限公司总部管理科技项目资助(5108-202218280A-2-130-XG)。

摘　　要：链式供电结构对故障位置定位的准确性有较大的影响,自愈时间较慢,尤其是面对特殊故障时,有很强的局限性。为了解决上述问题,文中在考虑最大供电能力的基础上,设计新的链式供电结构自愈系统。分别设计系统拓扑结构、层析结构和自愈结构。拓扑结构主要包括故障监测传感设备、供电断路器、故障保护设备;系统层次结构由信息检测层、故障保护层、自愈控制层组成;自愈结构由电路设备代理、电路母线代理、控制中心代理组成。设定信息采集程序和故障自愈恢复程序,建立自愈系统电路运行模型,通过约束条件分析最大供电能力,根据检验结果实现自愈。实验结果表明,设计的自愈系统故障位置定位的准确性高达99%,自愈时间低于0.5 s,为电网安全运行提供有效保障。The chain power supply structure has a great impact on the accuracy of fault location,and the self-healing time is slow,especially in the face of special faults,it has strong limitations.In order to solve the above problems,this paper designs a new chain power supply structure self-healing system on the basis of considering the maximum power supply capacity.The topological structure,tomographic structure and self-healing structure of the system are designed respectively.Among them,the topology mainly includes fault monitoring sensing equipment,power supply circuit breaker and fault protection equipment.The system hierarchy is composed of information detection layer,fault protection layer and self-healing control layer.The self-healing structure is composed of circuit equipment agent,circuit bus agent and control center agent.Set up the information acquisition program and the fault self-healing recovery program,establish the circuit operation model of the self-healing system,analyze the maximum power supply capacity through constraints,and realize self-healing according to the test results.The experimental results show that the accuracy of fault location of the designed self-healing system is as high as 99%,and the self-healing time is less than 0.5 s,which provides an effective guarantee for the safe operation of the power grid.

关 键 词：最大供电能力 链式供电 供电结构 结构自愈 自愈系统 

分 类 号：TN70[电子电信—电路与系统] TP302[自动化与计算机技术—计算机系统结构]