skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Modeling and Feedback Compensator Design for Power-Hardware-in-the-Loop System for Medium-Voltage Grid-Connected Power Converters

Conference ·

Hardware-in-the-loop (HIL) evaluation is a method in which the test subject is split into a physical part and a simulated part, and these parts are connected with interfaces to form a combined physical-numerical system. Power-hardware-in-the-loop (PHIL) systems, where actual hardware is connected to a real-time model, can exhibit issues of instability, inaccuracy and errors when operating in a closed-loop. The challenges of generating a PHIL setup are that, first, because of the limited dynamic response of the different parts of the system, the test results might be inaccurate, and, second, because of the high frequency noise introduced by the sensors to the closed-loop system, it can be difficult to design a compensator for the real-time emulator response, while stabilizing the closed-loop system at the same time. In this paper, different parts of a PHIL system are characterized, and the feedback compensator system design is proposed for the stable operation of the closed-loop PHIL system. The issues as observed in a PHIL system without any compensator are demonstrated using experimental results, and the effectiveness of a first order phase lead compensator is validated.

Research Organization:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Energy Efficiency Office. Advanced Manufacturing Office
DOE Contract Number:
Report Number(s):
NREL/CP-5D00-84012; MainId:84785; UUID:e26393ea-6a82-4748-bf8e-5d70093d538a; MainAdminID:65495
Resource Relation:
Conference: Presented at the 2022 IEEE 31st International Symposium on Industrial Electronics (ISIE), 1-3 June 2022, Anchorage, Alaska; Related Information: 81297
Country of Publication:
United States

References (11)

Stabilization of Power Hardware-in-the-Loop simulations of electric energy systems journal August 2011
An Effective Method for Evaluating the Accuracy of Power Hardware-in-the-Loop Simulations journal July 2009
Comparison of Ideal Transformer Method and Damping Impedance Method for PV Power-Hardware-In-The-Loop Experiments conference June 2019
Achieving a 100% Renewable Grid: Operating Electric Power Systems with Extremely High Levels of Variable Renewable Energy journal March 2017
Power-Electronic Systems for the Grid Integration of Renewable Energy Sources: A Survey journal June 2006
An Optimization Method for Designing Large PV Plants journal April 2013
Performance of Medium-Voltage DC-Bus PV System Architecture Utilizing High-Gain DC–DC Converter journal April 2015
A Megawatt-Scale Power Hardware-in-the-Loop Simulation Setup for Motor Drives journal April 2010
Synchronization of Parallel Single-Phase Inverters With Virtual Oscillator Control journal November 2014
Power Electronics Converters for Wind Turbine Systems journal March 2012
A Review of Single-Phase Grid-Connected Inverters for Photovoltaic Modules journal September 2005