摘要
通过分析传统备用电源自动投入装置在实际运行方式内动作逻辑受限的成因,探讨在链式串供电网内各运行方式下实现运行方式变更的可能性,并针对各类运行方式下实现的动作逻辑提出策略。在链式供电网络内投入集合常规的就地功能备自投方式,以及远方备自投方式的区域备自投控制系统,以网内不同断点为算例,研究区域备自投控制系统实现链式电网内非开环、开环站点内多个变电站的电源互备的动作逻辑配合,并创新性地完成了以开放“联切电源闭锁重合闸”功能为基础的联切小电源试验。通过在链式电网内采用穷举并调整网络断点的方式,使区域备自投控制系统均能实现动作逻辑配合,完成运行方式的变更,解决了传统备自投装置因运行方式造成的电源互备限制,极大地保障了电网安全稳定运行。在实际运用中,所提的区域备自投系统运用于链式网络,表现出较显著的成效。
To analyze the causes of the limited operation logic of the traditional standby power automatic input device in the actual operation mode,and to explore the possibility of the operation mode change in each operation mode in the chain-type series power supply network,and to propose strategies for the operation logic in each operation mode.A regional equipment self-injection that integrates the conventional local standby mode and remote standby mode was put into the chain power supply network,and different breakpoints in the network were used as examples to study the action logic of the regional equipment self-injection,and to realize the mutual standby of multiple substations in the non-open and open-loop sites in the chain power supply network.It innovatively accomplished the test of interconnection of small power sources based on the function of"interlocking reclosing".In the chain network,the network breakpoints were exhaustively enumerated and adjusted,and the regional equipment self-injection could realized the action logic cooperation and completed the operation mode change,which solved the limitation of power mutual backup caused by the traditional standby device due to the operation mode and greatly ensures the safe and stable operation of the power grid.The regional standby self-injection control system applied to the chain network has shown remarkable results in practical application.
作者
孙镜轩
尧长国
祁有年
SUNJing-xuan;YAOChang-guo;QIYou-nian(XishuangbannaPowerSupplyCo.,Ltd.,YunnanPowerGridCo.,Ltd.,Xishuangbanna 666100,China)
出处
《电力学报》
2021年第2期139-148,共10页
Journal of Electric Power
关键词
电力系统
区域设备自投
链式网络
适应性
power system
regional equipment self-injection
chain network
adaptability
