智能电网调度控制系统中历史数据服务优化方案

在智能电网调度控制系统中,历史数据存储规模呈爆发式增长态势,海量历史数据的冲击,影响了数据访问效率,为满足历史数据高效访问的需求,针对历史数据服务提出了全新的解决方案。文中提出增加历史数据缓冲区,缓存管理电网热点数据,提高数据处理效率,减轻历史库负载;优化任务分配器,协调数据缓存区与关系库分工作业,对历史数据服务进行有效的管理和调度;设计历史数据会话监听机制,实时监视数据库会话状态,保障历史数据服务的安全性和稳定性。实践证明,基于缓存的历史数据服务能够满足爆发式海量数据场景下的数据访问需求,保障电网调度控制系统的安全稳定运行。

Historical Data Service Optimization Scheme for Smart Grid Dispatching and Control Systems

In the smart grid dispatching and control system, the explosive growth of historical data storage scale and the onrush of massive historical data affect the efficiency of historical data access. To meet the demand for efficient access to historical data, an all-new solution for historical data service is proposed. The addition of historical data buffers is intended for buffer management of hot grid data to improve data processing efficiency and reduce historical database load. The task allocator is optimized for work coordination between data cache and historical database to effectively manage and schedule historical data services. The session monitoring mechanism of historical data is designed for real-time monitoring of database session state, to ensure the security and stability of historical data service. Practice has peroved that the cache based historical data service is able to meet the data access demand in the explosive mass data scenarios, while protecting the safety and stable operation of the power grid dispatching and control system.