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Benefit Analyses of Open vs. Closed Loop Grid Code Testing (BoLT)

Overview

The project explores the advantages of closed-loop testing (PHIL-based) over traditional open-loop testing, with a particular focus on its ability to capture grid interactions. This approach enables a wider range of test cases, providing more realistic and comprehensive testing scenarios. In addition to reviewing the current state of closed-loop testing and identifying areas for improvement, the project will assess the requirements for the overall PHIL system. A key milestone will be the identification of a unique test cases, which will serve as the first demonstrator for the JRA.

Objectives

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To compare closed-loop (PHIL-based) testing with traditional open-loop testing, focusing on grid interaction capture
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To evaluate how PHIL testing can enable a broader range of realistic and comprehensive test scenarios
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To identify benefits of enhanced testing capabilities for real-world applications
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To review current guidelines for closed-loop testing and suggest improvements over traditionals methods
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To define key requirements for the PHIL system, with a focus on practical implementation in future projects

Description

The JRA employs PHIL (Power Hardware-in-the-Loop) testing, a closed-loop method that integrates real hardware with simulated grid conditions to test system behavior under realistic grid interactions. Unlike traditional open-loop testing, PHIL dynamically adjusts to real-time changes in the system, providing a more accurate representation of how a device interacts with the grid. This method allows for a broader set of test cases and more comprehensive analysis of system performance. PHIL also facilitates testing in controlled environments, reducing risks and enhancing the ability to simulate complex real-world scenarios.

The project aims to demonstrate the benefits of PHIL in real-world applications. It will also assess current trends in closed-loop testing and identify areas for improvement. A key milestone is the development of a unique test case, which will serve as the first PHIL demonstrator within the Joint Research Activity (JRA). The project will explore the requirements for an integrated PHIL system and suggest potential directions for its future use in research and industry.

Tasks

  1. State of the art in closed-loop testing: reviewing and analyzing current methodologies
  2. (Minimum) requirements for software and hardware
  3. Identification of CL-test cases
  4. Current guidelines in closed-loop testing to identify areas for improvement
  5. Demonstrator test case
  6. Laboratory verification

Participants

Austria

Austrian Institute of Technology (AIT), Salzburg Research

Germany

Fraunhofer IEE, TU Dortmund

Ireland

University College Dublin (UCD)

Japan

National Institute of Advanced Industrial Science and Technology (AIST)

Switzerland

Zurich University of Applied Sciences (ZHAW)

United Kingdom

University of Strathclyde

Contact

Tobias Erckrath

Fraunhofer IEE
Email

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