Experiment Specification TC14.TS1.ES2
Experiment Specification Definition
| ID | TC14.TS1.ES2 |
|---|---|
| Reference to Test Specification | TS1 |
| Title of Experiment | Pure simulation test: Simulation for the validation of FFR and SI functionalities of converter-based resources: Dynamic response and stability assessment |
| Research Infrastructure | Tecnalia |
| Experiment Realisation | Simulation model of grid connected power-electronics interfaced renewables and/or stationary battery energy systems following the schemes drafted in the figure below will be developed.
Two types of simulation studies will be performed: i) Dynamic simulations The objective of these simulations is to test the dynamic response of converter-based resources with FFR and SI functionalities under frequency deviations. The frequency of the grid will be changed following a profile similar to that of the test signals for frequency injection described in previous work. The current, voltage and power profiles of the power converter will be recorded and compared against those specified in the grid codes listed in the FuI of TC14. ii) Stability due to converter interactions One of the key issues in converter-dominated power systems are the interactions that can take place between the converter’s controllers, filters, generators and the transmission network. If these interactions are not properly damped can lead to undamped oscillatory modes that make the system unstable. Identification of critical oscillatory modes and their dependence and sensibility to the converter and transmission system parameters will be addressed in this study. Combination of active damping schemes together with FFR and SI functionalities will be analyzed. |
| Experiment Setup (concrete lab equipment) | Simulations in Matlab/Simulink |
| Experimental Design and Justification | This simulation analysis aims to validate the operation of the controllers to provide FFR and SI functionality of converter-based resources. Unitary converter validation is performed. It can be used as a reference for comparison with the hardware test validation in TC14.TS1.ES1 and as a preliminary stage before addressing power system stability assessment in TC14.TS2.ES2. |
| Precision of equipment and measurement uncertainty | Pure simulation analysis. Not applicable. |
| Storage of experiment data | Data is collected in a workspace while simulation is running and recorded in a local PC. |
