Experiment Specification TC14.TS2.ES2

Pure simulation test: frequency stability assessment of renewable-based systems using SI and FFR support from converter-based resources

Experiment Specification Definition

ID

TC14.TS2.ES2

Reference to Test Specification

TS2

Title of Experiment

Pure simulation test: frequency stability assessment of renewable-based systems using SI and FFR support from converter-based resources

Research Infrastructure

DTU

Experiment Realisation

Simulation:

IEEE 9 bus system with converter-based resources (CBR) (wind, PV, battery, etc.) as replacements for SGs is implemented in digital real-time simulator. CBRs are equipped with SI/FFR control based of specifications of grid codes.

Different disturbances such as load increase or SG trip are carried out to evaluate ROCOF and frequency deviation of the system with SI/FFR in services.

A delay can be added to emulate the communication latency.

Comparison of SI/FFR based on different grid codes for frequency stability improvement.

The interaction of SI/FFR of converters with SGs is also considered.

Experiment Setup (concrete lab equipment)

Pure simulation in RTDS

Experimental Design and Justification

The pure simulation aims to evaluation frequency stability with SI and FFR support from converter-based resources in terms of ROCOF and frequency deviation.

It can be a reference for a comparison with the PHiL simulation

Precision of equipment and measurement uncertainty

PB5-based RTDS racks

Time step of simulation: 50-60 µs

Storage of experiment data

Data is collected on run time of simulation in CSV extension file and stored at a local PC