云边协同的调控云数据质量优化

调控云汇集了海量的模型和运行数据,采用集中处理方式对云中心的传输网络、计算资源和存储资源带来巨大的压力,数据时效性也无法得到保障.本文基于云边协同技术,设计了调控云广域云边协同总体架构,并以电网调控数据质量优化应用为例,对网络带宽及时延、数据协同处理性能、任务分解策略优化、云中心存储性能等指标进行了对比分析.实际系统应...

Cloud-edge Collaborated Data Quality Optimization for Dispatching and Control Cloud

The dispatching and control cloud brings together massive models and operational data,and the way of centralized processing may bring enormous pressure to the transmission network,computing resources and storage resources of the cloud center.In addition,the timeliness of data cannot be guaranteed.In this paper,the overall framework of wide-area cloud-edge coordination of the dispatching and control cloud is designed based on the cloud-edge collaboration technology.The application of data quality optimization of grid dispatching is taken as an example,and indicators such as the network bandwidth and delay,data collaborative processing performance,optimization of the task decomposition strategy,and the storage performance of the cloud center are compared and analyzed.The application results of a real system show that the application of the cloud-edge collaboration technology solves the problems of excessive network bandwidth occupation and weak data timeliness when using the method of centralized computing,which relieves the computing and storage pressure at the center of the dispatching and control cloud.Meanwhile,the data quality at the collaborative nodes in the dispatching and control cloud is effectively improved.