Machine Learning for Power System Lab: Partial Facilities

Hardware-in-the-loop Interconnection and Student Introductions

On the roof of the power group building, ASU has a utility interconnected power grid that can generate power for local appliances, storage devices, and send reverse power flow back to a utility partner. We use such a setup and a three-bus transmission grid to emulate problems that can happen in between transmission grids and distribution grids.

Utility Grid Connected Microgrid Student Experience
Lab Systems

Utility Connected Sunverge System

The introduction of multiple renewable microgrids brings more clean energy to meet increasing energy demand. We have a utility connected solar system, providing realistic generation to the grid, to the battery, and to the appliance. The scope is to create different modes for (1) battery control, (2) demand response, (3) islanding, and (4) distribution grid tests.

Solar 1 Utility Connected Solar System

Transmission System and SEL Tests

More distributed generation facilities mean bulk bidirectional power flow and more complex network requires more efficient real-time monitoring, control, and protection system to deal with islanding secure and robust interfacing of intelligent electronic devices with the RTAC.
The protection system consists of four parts: distribution lines, faults, two sources including feeding from the network and a 3 phase autotransformer respectively, and two digital protection systems consisting with digital relays, current transformers, potential transformers, and magnetic circuit breakers.
Guidance of ASU Protection System: Download
ASU PDC Manual: Download
ASU RTAC Manual: Download

Mearsure and Control Transmission Sys. Past ASU Work
RTAC Controller Back of Device Tower
BigData BigData
Communication Among Devices PMU Satellite Signal Boxes
ML-Platform ML-Platform

Transportation System and Electric System

Our group also aims at understanding the interaction between the static electric power grids and dynamic transportation system. The following shows a setup with AI-based robert for interacting with each other for resources and interacting with the grids for better grid regulations.
Transportation/Power Systems Another View
ML-Platform BigData

Transmission Grid Software Display

The followings are some pictures of the software monitoring and control in the lab.
- The first image shows the line to ground fault that has been created on the transmission line. The relay displays exactly which phase has tripped and also the LED for the same lights up. The event gets logged in the relay and can be downloaded for further analysis using Synchrowave event software. This picture shows the variation in current and voltage levels after a fault has been created on phase-C. It also displays the exact time when the event occurred.
- The second image shows the dashboard of acselerator in RTAC software. This dashboard gives a pictorial representation of different devices that have been connected to the different ports of RTAC, the protocol which has been used to interface the devices and the data exchange rate for the packets. It also gives the IP address of the device if we want to change the configuration.
- The third represents the time stamped PMU data that has been acquired from the PMU SEL 351S and logged in the Phasor Data Concentrator. In this image we have just chosen three components for phase currents. We can add as many components for our analysis as needed. The software can be programmed to compute different parameters by writing appropriate formulae such as active power, reactive power, etc.
- The last image is the PDC Assistant software tool. It gives real-time data acquired by PMU and that is then logged in the Phasor Data Concentrator. This dashboard also represents the status of PMU and the rate at which it exchanges data. You can also manipulate the time zones through this dashboard. The default is UTC. The other parameters displayed on this dashboard are various phasors such as voltages and currents, frequency.
Software Display 1 Software Display 2
Software Display 3 Software Display 4

Distribution Grid Software Display and Student Office Space

In addition to be a close partner with SEL southwest region, the lab is also a partner with CYME. We conduct various distribution grid analysis, such as topology analysis, hosting capacity analysis, virtual power flow analysis based on the data preprocessed by CYME.
CYME Software Student Seats