负荷分布式控制的云计算平台构架设计

具有能量存储特性的负荷可为系统提供备用,参与功率平衡控制.为提高负荷控制的精度并减少对用户用电的负面影响,提出了负荷分布式控制的云计算平台构架.在采用的分布式控制策略中,负荷、负荷聚合层与调度中心之间进行测量数据与控制指令的上传下达,负荷聚合层承担沟通负荷与调度中心的作用,将聚合得到的负荷群运行状态传输至调度中心,并解析由调度中心下达的负荷控制指令.设计了一种云计算平台构架,将负荷分布式递阶控制结构以扁平化计算模式实现,云计算平台直接响应由负荷、负荷聚合层和调度中心提出的服务请求.在 Cloudsim 软件下模拟了负荷分布式控制的云计算平台构架,量化多种可控负荷的云计算和存储任务量.仿真结果表明,云计算平台计算速度快、存储能力强、易于扩展,能够适应负荷分布式控制的要求.

Design of Cloud Computing Architecture for Distributed Load Control

Loads with energy storage property possess the potential to provide reserve and participate in power balance for power systems.To improve the control precision and reduce negative effects on users,a cloud computing architecture is proposed for distributed load control.In the adopted distributed load control strategy,measurement data and control demands are transferred among loads,load aggregators and the dispatch center.The load aggregators are responsible for coordinating loads and the dispatch center,transmitting aggregated operating states of various load groups to the dispatch center and explaining load control demands assigned from the dispatch center.A cloud computing architecture is designed to implement the distributed hierarchical control structure of load by flattening computing mode,and the cloud computing architecture directly responds the service requests asked by loads,load aggregators and the dispatch center.Using Cloudsim software,the cloud computing architecture for distributed load control is simulated,and the cloud computational amount of various controllable loads and storage tasks are quantified.Simulation results show that cloud computing platform possesses following superiorities:fast computing speed,strong storage capacity,easy to expand,and the ability to suit to the demand of distributed load control.