Research And Application Of Self-healing Control Technology For Smart Distribution Grid

The application of smart power consumption technology is a promising developing direction of power system.As one of the most important contents in the smart power consumption,the research of intelligent distribution grid has important significance.Generally,the distribution grid is direct service for the consumers.So,the diversity of consumer kinds and electricity load types make the distribution grid become complexity.As one of the main contents of the smart power consumption,self-healing control technique can make fast dection,location,isolation and restoration for the fault.In this topic,we first investigated the distribution grid characteristics and fault types,and proposed some related feeder protection methods.Then,we investigated the self-healing functions of the intelligent distribution grid.The main research points were focused on the basic theories and key technologies,and the results indicated that the self-healing control technique could ensure the smart power consumption quality as well as the real-time monitoring,evaluation,dection,etc.Subsequently,we investigated the fault location technique,especially in the section location and the accurate location areas.The results showed that the application o f the fault location technique on the separated main line and branch line resulting in a n efficient and fast fault location.Furthermore,we investigated the restoration reconfiguration technique of the intelligent distribution network based on the dynamic programming algorithm.The results showed that the restoration reconfiguration could quickly and efficiently restore the power.Finally,we researched the construction transformation case of smart power consumption to further illustrate the significant ro le of the distribution grid in the smart power consumption field.