power cloud architecture is shown in Figure 6-2 below.
Figure 6‐ 2 Power Cloud Layered architecture
Source: Chinese Society of Electrical Engineering 2nd Annual Meeting Report, 2012
In the architecture, the physical storage layer is the storage infrastructure for power cloud.
Massive storage devices are distributed in different geographical locations and are
connected together by a dedicated power system network. Via the cluster and distributed
systems, the basic management layer engages in load distribution management, and
task conflict management, to ensure a coordinated system operation and to provide
powerful data storage disaster recovery service to the surrounding devices. The
application interface layer is the most flexible part of the power cloud. It can offer different
interfaces and services, according to the needs and permissions, to different levels of the
grids. The high-level access layer provides the operating and development platforms to a
variety of power system software. In addition to the cloud computing characteristics,
power cloud has the following features:
(1)
Highly economical
The power cloud data center adopts virtualized resource pooling to share IT
equipment to multiple users, and to allocate resources by demand. This significantly
improves the datacenter IT equipment utilization, reduces the datacenter power
consumption, and enhances the performance, efficiency and effectiveness of the
