双电源单回链电网结构远方备自投策略探讨

Discussion on Remote Automatic Bus Transfer Device Strategy for the Power Grid Structure of Duel Power Source with Single Loop

针对双电源单回链电网结构区域供电网络存在的电网风险,提出了一种远方备自投策略。通过加装光纤通道接口、数字接口装置,实现与光纤网的接口,建立保护信号传输通道,远方备自投利用传输通道向对侧装置发送远方自投信号,实现两个变电站备自投的相互配合。该策略有效化解了双电源单回链电网结构变电站全站失压的电网风险,提高了电网的供电可靠性。

Aiming at power grid risk in regional power supply network which has the power grid structure of duel power source with single loop, a remote automatic bus transfer device strategy is proposed. By adding fiber channel interface, digital interface device, the interface with optical network is realized, Transmission channel of protection signals is set up and the remote automatic bus transfer device sends remote automatic bus transfer signals to the device at the other side through the transmission channel which realizes the coordination between automatic bus transfer devices in two substations. The strategy resolves the power grid risk of total voltage losing of substation in the power grid structure of duel power source with single loop.