Holistic system integration and validation procedure developed in ERIGrid

Transcription

1 Holistic system integration and validation procedure developed in ERIGrid Cyndi Moyo Center for Energy Electric Energy Systems AIT Austrian Institute of Technology, Vienna, Austria Workshop Holistic System Validation, Methods and Tools, Free Access to Best Smart Grid Laboratories October 5, 2017, Amsterdam, The Netherlands

2 Coordinated Voltage Control (CVC) Validate this! Cyndi Moyo, AIT Energy

3 Holistic Testing & Validation Holistic Validation Procedure (an interactive process) "Holistic testing is the process and methodology for the evaluation of a concrete function, system or component (object under investigation) within its relevant operational context (system under test), corresponding to the purpose of investigation Cyndi Moyo, AIT Energy

4 Holistic Test vs. Component Test Component Test Example: inverter MPPT test, antiislanding No interactions with the system Usually open loop test (predefined voltage, frequency; setpoints are applied to the hardware under test) Holistic/System Test Combining several tests (testing process) Using simulations DC AC Testing a system rather than just component Central Controller (optimization) RTDS Simulated Network PV simulator Hardware inverter under test AC gid simulator PH IL PV simulator PV inverter Cyndi Moyo, AIT Energy

5 The basics HOLISTIC TEST DESCRIPTION Cyndi Moyo, AIT Energy

6 Holistic test description THREE levels of specification Use Cases Test Case (TC) Map/split Map/split Test Objective(s) Test Test Specification specification(ts) Experiment Specification (ES) Generic Specific Lab Cyndi Moyo, AIT Energy 7 7

7 Holistic testing procedure different mapping steps Mapping from SC, UC, TO to holistic test case Mapping of holistic test case to (sub-) test specifications, i.e. specific (sub-) test system(s) Mapping of (sub-)tests to RI and specify experiments research infrastructure (RI) capability profiles Use Scenario Use Case(s) & Generic Case(s) System Configuration Sub-test specification Experiment Specification Exp. in RI 1 Holistic Test Case Division into individual (sub-)tests Subtest spec. 2 Exp. Spec. Exp. in RI 2 Use Cases Sub-test specification n Experiment Specification Experiment in RI n RI 1 RI 2 RI n Test Objective 6 5 holistic test evaluation test refinement 6 7 x 35 2 Process steps x mapping step Mapping of results of experiments to represent holistic result Mapping (preliminary) results to test adjustments 4 Exchange of data and results Mapping between tests resp. experiments Cyndi Moyo, AIT Energy

8 Key Questions to be answered for test specification: WHY TO TEST? WHAT TO TEST? WHAT TO TEST FOR? HOW TO TEST? Validate this! Cyndi Moyo, AIT Energy

9 Key Questions to be answered for test specification: WHY TO TEST? WHAT TO TEST? WHAT TO TEST FOR? HOW TO TEST? Validate this! Cyndi Moyo, AIT Energy

10 Test System & Domain System under Test (SuT): is a system configuration that includes all relevant properties, interactions and behaviors (closed loop I/O and electrical coupling), that are required for evaluating an OuI as specified by the test criteria. OuI Object under Investigation (OuI): the component(s) (1..n) that are subject to the test objective(s). Remark: OuI is a subset of the SuT. Domain under Investigation (DuI): Identifies the domains of test parameters and connectivity relevant to the test objectives. Cyndi Moyo, AIT Energy

11 Test System Functions optimization in the controller state estimation OuI Use Cases define Functions Of Systems (IEC approach) DER P,Q control measurements OLTC tap control SuT Functions under Test (FuT): the functions relevant to the operation of the system under test, as referenced by use cases. Function(s) under Investigation (FuI): the referenced specification of a function realized (operation-alized) by the object under investigation. Remark: the FuI are a subset of the FuT. Cyndi Moyo, AIT Energy

12 Key Questions to be answered for test specification: WHY TO TEST? WHAT TO TEST? WHAT TO TEST FOR? HOW TO TEST? Cyndi Moyo, AIT Energy

13 Purpose of Investigation (PoI) Verification Validation Characterization Test objectives/poi: Characterization and validation of the DMS controller 1. Convergence of the optimization (validation) 2. Performance of the optimization under realistic conditions (characterization) 3. Accuracy of the state estimation (characterization) Modeling / Understanding Scoring / Performance Cyndi Moyo, AIT Energy

14 Designing Test Criteria Detailing Sequence Test objective PoI Test Crit. Test criteria: How to break down the PoIs? Target metrics (criteria): list of metrics to quantify each PoI Variability attributes: controllable or uncontrollable parameters to disturb SuT Quality attributes (thresholds): test result level or quality of the TM required to pass or conclude the testing. Target metrics: convergence (when/how often?), 1.2. How fast?, 1.3. solution quality Voltage deviation 2.2 number of tap changes, 2.3 network losses 3. Voltage, P, Q estimation errors Variability attributes: Load patterns (realistic, annual variation; applies to criteria 1-3); Communication attributes (packet loss, delays) Quality attributes (thresholds): 1.2: convergence within 2 sec (validation) 3.* estimation quality characterized with confidence 95% Cyndi Moyo, AIT Energy

15 Key Questions to be answered for test specification: WHY TO TEST? WHAT TO TEST? WHAT TO TEST FOR? HOW TO TEST? Cyndi Moyo, AIT Energy

16 research infrastructure (RI) capability profiles 2 Test Specification & Design 1 3 SC UC Test Case SuT, FuT, PoI, TC Test Specification Test Test Design, I/O I/O 4 map 5 Experiment Specification Experiment in RI TO Research Infrastructure (RI) test evaluation 6 Given: Purpose of Investigation (PoI) & Test Criteria System & Domain categories and relations To Specify: 7 test refinement Precise system (specific system configuration) Which variables to manipulate & which to measure How to quantify the test metrics (based on test data) Sampling of the input spaces (design of experiments methodology) Combination and interpretation of the outputs The test design / procedure. Mapping to actual lab setup (experiement setup) Cyndi Moyo, AIT Energy

17 Detailing test setup & Mapping to the Lab Scoping & specification of test system. Separate specification of lab implementation Cyndi Moyo, AIT Energy

18 Can I just say, that it's very nice to get these questions sorted out now, rather than when you're sitting down and have to implement something. You would then usually go "Oh shit, how does this work again? ERIGrid participant FIRST APPLICATION EXPERIENCE Cyndi Moyo, AIT Energy

19 ERIGrid Transnational Access: Preparation & Documentation External Lab users apply description procedure E.g. DiNODR distribution network oriented application of demand response currently ongoing in SYSLAB The preparation work helped us a lot. Except minor changes in the plan and configurations due to a number of device, communication and control unavailabilities, we are following our test and experiment specifications. The template is also useful for our user team to exchange ideas in an organized and effective way. - Alparslan Zehir (DiNODR) EU H2020 Programme GA No Cyndi Moyo, AIT Energy 20

20 Collaboration with other Projects ELECTRA IRP Web-of-Cells (WoC) concept Large set of use cases (distributed control) Concurrent development and lab implementation Specification of test cases and experiments SmartNet TSO/DSO interaction Different interaction schemes Proof-of-concept lab validation and field testing Specification of test cases and experiments Cyndi Moyo, AIT Energy

21 Summary and future work A clear vision for holistic validation Initial results 3-level test description template & guidelines Multi-Domain System Configuration description (CIM compatible) Several successful applications & encouraging feedback Future work Further exemplify, simplify & detail description method Develop & apply full holistic validation procedure Cyndi Moyo, AIT Energy