摘要
配电网发生最多的故障是接地故障,如何准确地检测并隔离接地故障线路,成为中性点非有效接地系统实现配电网自动化的一个重要研究课题。传统的选线方法只对部分故障信息进行处理,选线可靠性不高。本文把模糊理论应用于故障选线,实现多判据信息融合,使选线性能得到提高。给出整个融合算法的DSP软硬件实现,并通过高压动模实验故障数据验证了文中方法的正确性和可行性。
How to detect and isolate earth-faulty section is an important subject to realize distribution automation in ineffectively grounded systems. Traditional single fault-detection method using only some parts of fault information has poor reliability. Fuzzy sets theory is introduced and applied in fault line detection to make the fusion of multi-fault information, and therefore improves the detecting performance greatly. The realization of software and hardware for the fusion strategy is also introduced. Dynamic mould laboratory emulation results show that the fusion strategy exhibits excellent property over the existing criteria.
出处
《继电器》
CSCD
北大核心
2007年第12期5-9,共5页
Relay
基金
石家庄经济学院科研基金资助(200608)
关键词
配电网
故障选线
隶属函数
数字信号处理器
distribution system
detection earth-fault
membership function
DSP
