Research on Solution Design of Condition Self-Adaptive Compatible Time Synchronization System for Distribution Grid Network of Things

Time synchronization and unique time standard is the basic requirement of device unit function and business system running of distribution grid network of things. The actual situation of distribution grid network of things is that physical environment is harsh and communication method is various. Construction of time synchronization system in distribution grid could not apply the united method as power grid, and full resource for every situation neither. The current efficient method is to classify and analyze the circumstance and difference of each part in distribution grid network of things and design differentiation solution considering cost simultaneously. This artcle propose a condition-adaptive system design solution achieving time synchronization. The solution refers to accuracy demand, performance and efficiency cost of near device, ethernet device, mobile net device and carrier net device, realizing differentiation time synchronization method and distribution grid network of things time synchronization model. Experiment result show that condition self-adaptive compatible time synchronization system could realize differentiation solution that meet the demand of every kind device. Time accuracy is 13% higher than power grid for near device, cost declining 35% as well. Ethernet device using MAC method could increase accuracy to 15 times and cost keep certain. Maintaining accuracy, mobile and carrier device could decrease cost 30%.