1 research outputs found
Renewable Energy Integration in Distribution System -- Synchrophasor Sensor based Big Data Analysis, Visualization, and System Operation
Due to the large volume of heterogeneous data provided by both the customer
and the grid side, a big data visualization platform is built to discover the
hidden useful knowledge for smart grid (SG) operation, control and situation
awareness. An open source cluster computing framework based on Apache Spark is
considering to discover the hidden knowledge of the bag-data. And the data is
transmitted with a Open System Interconnection (OSI) model to the data
visualization platform in a high-speed communication architecture. Google Earth
and global geographic information system (GIS) are used to design the
visualization platform and realize the result with the test bench.
The alternating direction method of multipliers (ADMM) is used to compute the
optimal power flow in distributed manner. The proposed network reconfiguration
is solved in parallel manner with the limited switches and the strong computing
capability.
Further more, a multi-timescale operation approach is modeled with a
three-phase distributed system, which consists the hourly scheduling at
substation level and the minutes power flow operation at feeder level. The
system cost with renewable generation is minimized at the substation level. The
given error distribution model of renewable generation is simulated with a
chance constraint, and the derived deterministic form is modeled with Gaussian
mixture model (GMM) with genetic algorithm-based expectationmaximization
(GAEM). The system cost is further reduced with the OPF in real-time (RT)
scheduling. The semidefinite programming (SDP) is used to relax the
nonconvexity of the three-phase unbalanced distribution system into a convex
problem, which make sure to achieve the global optimal result. In the parallel
manner, the ADMM is realizing getting the results in a short time.Comment: Just a basic version summary of my research paper