Microgrid control using remote controller hardware-in-the-loop over the Internet

Abstract

A centralized microgrid power management and control system is developed and tested with a Hardware-Inthe-Loop (HIL) Real-Time Digital Simulator (RTDS) model of an existing microgrid that communicates in real-time with the controller over the Internet. The controller leverages Phasor Measurement Units (PMUs) for measuring power flow and adjusting inverter power references in real-time. The control objectives are power and State-of-Charge (SoC) control, subject to inverter power amplitude and rate limits and communication constraints. The controller incorporates units of power control, SoC control, and adaptive reference scheduling to achieve seamless microgrid operation. Real-time, over the internet, hardwarein-the-loop tests between the controller and the simulator are realized and indicate stability and performance of the microgrid control system.

Control Hardware in the Loop and IoT Integration: A Testbed for Residential Photovoltaic System Evaluation

“…In [17] a recurrent neural network is proposed to predict the power generated by a PVS in the short term; IoT sensors that monitor the PVS in real time were used to feed the neural network. Also researches that integrate IoT and HIL in energy systems have been reported: in [18] a centralized energy management system for a micro-grid (µG) is proposed, the µG is emulated using the HIL technique and the centralized controller maintains communication with the µG through the Internet. In [19] the development of a power HIL (PHIL) simulation is described using a geographically distributed infrastructure that is composed of a real-time simulator and a Back-to-Back PEC, separated from each other by approximately 40 km of distance and maintaining communication over the internet.…”