Enhanced ERIGrid System-Level Testing Methods

© The ERIGrid Consortium

EU H2020 Programme GA No. 654113

Enhanced ERIGrid System-Level Testing Methods

Gunter Arnold

Fraunhofer IEE

IRED 2018 Side Event

October 16, 2018, Vienna, Austria

https://www.erigrid.eu/




Introduction

▪ Exchange and discuss results from ERIGrid Work Package WP09 (JRA3)

of the ERIGrid project and from three other initiatives

▪ Getting feedback for the following questions

– Will smart grid system level testing become important in (near) future?

– What are possible solutions (testing setups and procedures) for getting

valuable and correct test results?

– What are the challenges and minimum requirements for the labs,

performing such smart grid system level tests?

– Is a guideline describing a common/harmonised

way of smart grid system level testing useful?

16.10.2018ERIGrid IRED 2018 Side Event, Vienna, Austria 2





Background/ Motivation for WP 09

▪ Challenges for pure lab /field testing of SG components

– Incr. compl. of cyber-physical energy systems (CPES)

– New components (RES, EV, heat pumps, etc.) & fields

of applications (e.g. power & heat supply, transport)

– System services of RES are mandatory (EU Network

Codes RfG)

– New business models (VPP)

– Digitalization of power systems (remote control, metering)

▪ Advantages of an Integrated lab based validation approach (incl.

real-time simulation and Hardware-In-the-Loop (HIL) test setups)

– Testing of realistic fault conditions or rare network events

– Flexibility in changes of grid and component parameter

– De-risking field testing by well adapted testing

environment and conditions






Aims and Objectives of ERIGrid WP 09

▪ Develop and setup and integrate lab-based research infrastructure for

system-level analysis of components/small-scale systems regarding

– Harmonized Smart Grid ICT Systems/Protocols

– Improved HIL methods/algorithms for Smart Grid

– Combining of HIL and RT-Simulation for system integration

– Harmonized testing scenarios and methods for system integration






Highlights of ERIGrid WP 09Harmonized Smart Grid ICT Systems/Protocols

▪ Reference model for controller interfaces

across ERIGrid research infrastructures

and beyond was developed

▪ Model facilitates a common description

of communication and control in smart

grid laboratories

▪ 5 generic control levels (C1-C5)

▪ 5 generic levels of external user

equipment (X1-X5)

▪ 5 generic control levels of lab

infra-structure (D1-D5)

▪ 8 comm. interfaces (R1-R4, L1-L4)

▪ 12 interfaces for data (E)xchange (E1-E12)






Highlights of ERIGrid WP 09Harmonized Smart Grid ICT Systems/Protocols

▪ Harmonized naming convention for laboratory

objects and signals across laboratories was

developed (analogue to IEC61175), consisting of

– Object Naming Convention<ObjectType>_System[.Subsystem][...][_AssociatedSystem][.Subsystem][...]

– Signal Naming Convention<SignalType>_<Domain>_<Signal>[.<Subsignal>][...]

– Object Type Names


Signal example DescriptionM_EA_W.phsA.instMag Instantaneous magnitude of electrical power on phase A

M_EA_W.phsA.qQuality indicator associated with an electrical measurement of power on phase A

M_EA_TotVA.instMagInstantaneous magnitude of total (three phase) apparent electrical power

I_CT_TurSt.stValIndication of the (enumerated) status of a wind turbine, control domain

C_CT_EmStAlm.ackCommand to acknowledge an alarm on a DER device, control domain

S_TH_Pos.setValSetpoint (percentage) for the position of a valve in a water-borne heating circuit

I_CO_IEDOnline.stVal Indication of the online status of an IED, communication domain





Highlights of ERIGrid WP 09Combining of HiL and Co-Simulation


▪ Different approaches in Partner labs have been compiled and analysed

▪ Webinar on “PHIL simulation for DER and smart grids“

RT SIMULATOROFFLINE

SIMULATION

HARDWAREPOWER INTERFACE

D

A

D

APower

Amplification

Measurement

MASTER ALGORITHM

FMU

FMU

converting

converting

SYNCHRONOUS INTEGRATION VIA FMU ASYNCHRONOUS INTEGRATION VIA LABLINK

STABILITY ANALYSIS /TIME DELAY

COMPENSATION ALGORITHM

Time Shifting

Property

Signal

DiscretizationInverse Fast

Fourier

Transform

Fourier

Transform

ASYNCHRONOUS

INTEGRATION

VIA OPSIM





Highlights of ERIGrid WP 09Harmonized testing scenarios & methods

▪ Test description map for two test cases (TC) had

been elaborated based on holistic test cases

– TC#1: Decentralized (voltage) control and

– TC#2: Centralized Voltage Control

▪ Single Site: Test involves only one research

infrastructure (RI)

▪ Multi Site: Test involves multiple RIs,

simultaneously or not.

▪ Single Test: Unique test, involving only one RI

or multiple RIs simultaneously

▪ Multi Test: Multiple tests (repeated) in the same RI

or in different RIs, (i.e. testing chain)


TC#1 Single Site Multi Site

Single

Test

TC.S.1

CEA

Multi

Test

TC.S.1

CRES

Round robin

CEA

TC#2 Single Site Multi Site

Single

Test

TC.S.2

RSE

TC.M.2

UST

Multi

Test

TC.S.2

RSE

TC.M.1.1

ICCS





Highlights of ERIGrid WP 09Harmonized testing scenarios & methods

▪ TC#1 example: P/f- and Q/V-

droop ctrl in battery or PV

inverter

– Evaluation of the P-f

and V-Q droop control

capabilities of an inverter

controller for a PV- or

storage system

▪ Different experiments

realizations with three setups

– Control HIL (CHIL)

– Power HIL (PHIL)

– Pure hardware

experiment


Holistic test setup Realisitic PHIL setup





Highlights of ERIGrid WP 09Questionnaire for Verification of Developed System

Testing Methods

▪ Questionnaire distributed among WP 09 partners

▪ Questionnaire topics/categories

– Short Lab infrastructure description

– Following the holistic approach

– List of possible ERIGrid services offered /

possible fields of application

– Quality Assurance measures established:

accreditation according to ISO 170xx, etc.

– Level of Compliance to WP 09 interfacing

conventions (naming, signaling)

– Level of Compliance to WP 09 developments

(HIL and co-sim, time delay comp., stability)

– Level of Compliance to WP 09 validation

procedures

▪ Questionnaire replies from 9 partners currently

under analysis




Documents

Enhanced ERIGrid System-Level Testing Methods