论文部分内容阅读
结合实例详细论述了4种新的基于智能开关设备相互配合的馈线自动化方案及其基本原理:方案1引入合闸速断机制,不需要通信网络、主站和蓄电池,也不必改变主变电站出线开关的速断保护整定值,但是要限制速断保护范围,仅需要一次重合就能实现馈线自动化功能;方案2、方案3均利用分组无线电业务/短信业务(GPRS/SMS)实现馈线自动化,其中方案2不需要限制主变电站出线开关的速断保护范围,但是故障线路对侧电气设备仍需要经历一次故障电流的冲击,方案3的故障线路对侧电气设备不必经历故障电流冲击;方案4利用县级电网调度自动化系统主站和通信网络实现农网馈线自动化。
In this paper, four new feeder automation schemes and their basic principles based on the cooperation of intelligent switchgear are discussed in detail in combination with the examples: Option 1: the closing and breaking mechanism is introduced, communication network, master station and battery are not needed, and the main substation outlet switch Fast break protection settings, but to limit the scope of quick break protection, only need a coincidence will be able to achieve feeder automation functions; Scenario 2, Scenario 3 are using packet radio service / short message service (GPRS / SMS) to achieve feeder automation, which Scenario 2 does not require However, the electrical equipment on the opposite side of the faulty line still needs to experience the impact of a fault current, and the electrical equipment on the opposite side of the faulty line of scheme 3 does not have to experience the fault current impact. Scheme 4: By using a county-level dispatching automation system Master station and communication network to achieve automation feeder network.