太阳能发电系统直流电压电弧故障检测装置研究

Research on DC Voltage arc Fault Detection Device for Solar Power Generation System

太阳能发电系统在直流电压下的电弧故障是一种阻抗相对较高的扰动,故障电流比标称电流更大。电弧故障的速度非常快,具有大约0.01秒的0.5个周期的扰动速度。诸如常规类的检测设备将无法检测到干扰。文章设计太阳能发电网络中的电弧故障检测设备,旨在早期缓解太阳能发电网络系统中出现的电弧故障,以降低电弧故障干扰引起火灾的发生率。

Arc faults in solar power generation systems under DC voltage are disturbances with relatively high impedance,and the fault current is greater than the nominal current.The speed of arc faults is very fast,with a disturbance speed of approximately 0.5 cycles in 0.01 seconds.Therefore,detection devices such as conventional ones will not be able to detect interference.In the paper,arc fault detection equipment was designed for solar power generation networks,aim to alleviate the occurrence of arc faults in solar power generation network systems in the early stages,in order to reduce the incidence of fires caused by arc fault interference.