Abstract
The high penetration of renewable energy sources in modern power systems introduces opportunities and challenges to power system operators. The frequency, which is a global variable in power systems, is being affected due to the increase of the renewable energy shares. This paper suggests dynamic models of power systems for assessing the frequency response due to different types of disturbances and uncertainties from renewable energy sources. The introduced model is built based on the sub-transient model of synchronous generating units. Likewise, a simplified system frequency response model is presented, in which the demand-side participation in providing ancillary services is considered. Different types of power systems are considered to verify the introduced models. The results show the effectiveness of the presented models in evaluating the impact of different parameters on power system frequency response. The impacts of increasing the renewable energy shares and its uncertainties are also investigated.
| Original language | English |
|---|---|
| Article number | 107477 |
| Number of pages | 13 |
| Journal | Computers and Electrical Engineering |
| Volume | 96 |
| Issue number | Part A |
| DOIs | |
| Publication status | Published - Dec 2021 |
| Externally published | Yes |
Keywords
- Damping coefficient
- Frequency control
- Frequency response
- Power systems
- Renewable energy
- Uncertainties
- Virtual inertia
