ERIGrid partners carry out a series of educational and training activities addressing young researchers, power system and ICT professionals and students:

WebinarsCoursesLab ExercisesRemote LabPresentationsPublications / TutorialsSoftwares & Tools

ICT standards for smart grids:

IEC 61850, CIM and their implementation in the ERIGrid project

On 23 March 2018 ERIGrid held a webinar on ICT standards for Smart Grids and their usage in the project.

This webinar focused on the following topics:

  • ICT interoperability in smart grids
  • IEC 61850 and CIM
  • Open source implementations in the ERIGrid project

and was supported by

PHIL simulation for DER and smart grids:

best practices and experiences from the ERIGrid project

On 5 December 2017 ERIGrid held a webinar on power hardware in the loop (PHIL) simulation showcasing best practices and experiences in the project.

This webinar focused on the following topics:

  • Characteristics of PHIL simulation
  • Stability, accuracy issues, interface topologies and stabilisation methods
  • PHIL tests that show the value of the approach: DER inverters providing ancillary services, voltage-frequency control, microgrids, etc
  • Improved Hardware in the Loop (HIL) methods in the ERIGrid project
  • Live demonstration of HIL tests

OpSim

OpSim is a test and simulation environment with applications ranging from developing prototype controllers to testing operative control software in the smart grid domain. Created by Fraunhofer IWES and University of Kassel, OpSim enables users to connect their software to simulated power systems, or test it in conjunction with other software. The power grid simulator of OpSim is capable of emulating large power systems with multiple voltage levels and substantial amounts of generators, storages and loads. The core of OpSim is a flexible message bus architecture; it allows arbitrary co-simulations in which power system simulators, controllers and operative control software can be coupled together.

ERIGrid held a webinar on OpSim on 27 June 2017, which covered the following topics:

  • Introduction to the co-simulation platform OpSim using a message bus for exchanging data of different simulation tools
  • Connection of a RTS (OPAL-RT) for real-time network simulation to the message bus
  • Connection via web-based interfaces to the message bus for including several infrastructures in one experiment
  • Demonstration of the OpSim platform

Further information about OpSim:

ERIGrid Summer School on Validation Methods for Distributed Control Strategies

On 27-31 August 2018 the Technical University of Denmark will be hosting the ERIGrid Summer School on methods for validation of distributed control strategies via implementation in the physical laboratory.

Coordination and control are critical in the development of future energy networks. However, many promising concepts fail to bridge the gap from theory to practical application. Experience from actual implementation can be crucial in focusing your research and development. Implementation under realistic conditions is crucial for maturing the solutions as well as convincing further stakeholders.

This summer school focuses on methods for validation of distributed control strategies via implementation in the physical laboratory – SYSLAB, one of the ERIGrid laboratories provided for free access.

Participating in this summer school, you will:

  • Learn to formulate test specifications that will allow you to develop a relevant and realistic test setup
  • Experience the steps along the path from a new control concept to maturing it for validation in laboratory experiment
  • Gain an understanding of how the carefully planned Design of Experiments will yield a better understanding of the limits of proposed solutions

You can find the preliminary programme here and register here.

Metrology for Smart Grids and Testing

1st ERIGrid Winter School (23-25 January 2018)

Measurements for smart grid applications are sometimes overlooked and assumed to give the correct answer. On 23-25 January 2018 the University of Strathclyde hosted the 1st ERIGrid Winter School “Metrology for Smart Grid Applications and HIL Testing”. Organised in collaboration with MEAN4SG and the National Physics Laboratory (NPL), the school provided PhD students and young researchers with a mixture of lectures, practical laboratory interactions with ongoing research projects, and a 1-day hands-on laboratory session.

A series of lectures given as part of the winter school focus on the awareness of the measurement accuracy and also provide an introduction into accurate measurement techniques, such as phasor measurement units (PMU), and the testing of the accuracy of such devices. Furthermore, measurement of uncertainty is a relevant aspect to consider when developing simulation models and performing measurements.

The corresponding lectures are available below:

Power system measurements

The impact of power quality on measurements (Dr. Andrew Roscoe, Univeristy of Strathclyde)

How accurate is a measurement? (Dr. Andrew Roscoe, Univeristy of Strathclyde)

Uncertainty in modelling and measurements

An introduction to measurement uncertainty (Ian Smith, NPL)

Uncertainties in modelling (Louise Wright, NPL)

PMU and PMU testing

Adaptive-window PMU algorithms using cascaded boxcar filters to meet and exceed C37.118.1(A) requirements (Dr. Andrew Roscoe, Univeristy of Strathclyde)

PMU (algorithm) testing to C37.118.1(A) in software (Dr. Andrew Roscoe, Univeristy of Strathclyde)

In their Real Time Digital Simulator Lab (RTDS), the researchers of Technical University of Delft carry out a series of RTDS exercises, structured into the following modules (all materials are available for free download):

Lab exercises on important DG related topics are carried out using Power Hardware in the Loop (PHIL) simulation at the National Technical University of Athens. An experiential learning approach is applied starting from the concrete experiments and leading to abstract conceptualisation. The following topics are addressed:

1) Parallel operation of synchronous generators – parallel operation with DG

2) Voltage control of distribution networks – contribution of DG

3) Short circuit studies – contribution of power electronics interfaced DGs

4) Microgrid operation and control

All the materials used for lab exercises can be downloaded:

Preparatory lecture (before the lab exercises)

– Description of the lab exercises in the journal paper “Laboratory Education of Modern Power Systems Using PHIL Simulation” P. Kotsampopoulos, V. Kleftakis, N. Hatziargyriou  

– Student reports (after the lab exercises):

Metrology for smart grids and testing

A series of lectures given during the 1st ERIGrid Winter School at the University of Strathclyde focus on the awareness of the measurement accuracy and also provide an introduction into accurate measurement techniques, such as phasor measurement units (PMU), and the testing of the accuracy of such devices.

The corresponding lectures are available below:

The impact of power quality on measurements (Dr. Andrew Roscoe, Univeristy of Strathclyde)

How accurate is a measurement? (Dr. Andrew Roscoe, Univeristy of Strathclyde)

An introduction to measurement uncertainty (Ian Smith, NPL)

Uncertainties in modelling (Louise Wright, NPL)

Adaptive-window PMU algorithms using cascaded boxcar filters to meet and exceed C37.118.1(A) requirements (Dr. Andrew Roscoe, Univeristy of Strathclyde)

PMU (algorithm) testing to C37.118.1(A) in software (Dr. Andrew Roscoe, Univeristy of Strathclyde)

More about the 1st ERIGrid Winter School

Co-simulation for smart grids

The ERIGrid project explores the potential of co-simulation based on the Functional Mock-up Interface (FMI) standard for smart grids research. This presentation – “FMI – Functional Mock-up Interface. Specification and Applications.” by E. Widl (AIT) – provides a brief overview of the FMI specification and some of the FMI-compliant tools used in ERIGrid.

The following two documents present the Mosaik co-simulation framework. The main goal of Mosaik is to couple existing simulators in a common environment in order to perform a coordinated simulation of a given (smart grid) scenario.

Mosaik introduction

Mosaik demo “The flexible smart grid co-simulation framework” F. Schlögl, O. Nannen, C. Steinbrink (OFFIS)

Holistic testing

The holistic test specification method was developed in ERIGrid to structure and guide the ERIGrid holistic validation approach. This test description method has been adopted into several H2020 projects. The lecture here is based on lectures held at a summer school and ordinary teaching at the Technical University of Denmark.

The slides “How to Formulate a Test Specification” introduce the concept of holistic test specification, in principle, and by example, contrast it from use cases and summarise the related system configuration description method

The document “ERIGrid Test Description Templates” provides core definitions and templates for the formulation a test

Photovoltaic systems

ERIGrid carries out performance analysis of islanded or grid-connected PV systems under varying operating conditions with the use of pure simulation models. The analysis includes models for PV panels, batteries, inverters and diesel gen-sets: “Autonomous and Grid-connected Photovoltaic Systems Modelling for Simulation Purposes” E. Rikos (CRES)

Following is an overview of the most common Maximum Power-Point Tracking algorithms used by commercial inverters’ manufacturers or other research studies. The specific algorithms can be used in simulation analyses or design of inverter components: “Overview of methods for Maximum Power Point Tracking in PVs” E. Rikos (CRES)

This presentation demonstrates the use of power converters for the emulation of PV arrays as test setup components for the performance evaluation of PV inverters: “Overview of methods for HW Simulation for PVs” E. Rikos (CRES)

More ERIGrid Presentations

WEST tool allows creation of an FMU server to deliver the FMU in all confidentiality and security. The adaptive interface provides the possibility to do simulation with FMU both in model exchange and co-simulation mode. Upon finalization of installation, user can deposit new FMU into server and can get access to them via webservice. The tool now support FMI 1.0. A new version supporting FMI 2.0 is under development. You can download the WEST tool here.

Jupyter Notebooks
  • HEMS Scenario Build Up: This Jupyter notebook introduces how to build up a Home Energy Management System (HEMS) simulation scenario using mosaik for co-simulation. The notebook introduces gradually more complexity to the simulation.
  • DoE Exercises: This file contains a series of notebooks showing examples of Design of Experiments (DoE). They use the HEMS simulation in mosaik as a test case, and showcase simple and advanced DoE concepts, such as one-way ANOVA and meta-modelling using non-parametric methods.

You can find other ERIGrid open access tools for free download here.