Abstract
This paper deals with an Autonomous Frequency Regulation (AFR) of a grid-following (GFL) converter powered by a Battery Energy Storage System(BESS). It deals with the frequency stabilization function of a small-sized BESS system that will be widely used along with the spread of electric vehicles and eco-friendly housing. As requirements of AFR, it should be able to actively respond to the frequency deviation using the measured voltage at a PCC (Point of Common Coupling). Due to battery capacity limitation, the variation of energy in a BESS for AFR should be limited to a level that does not affect the original installation purpose (e.g., load transfer, uninterruptible power supply, etc.). So in this paper, a new AFR method has been proposed, which uses a PI-based selective frequency damping and achieves cooperative frequency support while obeying the Electric Power System (EPS)' frequency control scheme. As a verification, the effect of the proposed AFR algorithm mounted on the GFL converter is simulated in a modified IEEE-14 bus system having multiple random loads and multiple distributed ESSs.
| Original language | English |
|---|---|
| Pages (from-to) | 175-180 |
| Number of pages | 6 |
| Journal | IFAC-PapersOnLine |
| Volume | 55 |
| Issue number | 9 |
| DOIs | |
| State | Published - 2022 |
| Event | 11th IFAC Symposium on Control of Power and Energy Systems, CPES 2022 - Online, Serbia Duration: 21 Jun 2022 → 23 Jun 2022 |
Keywords
- Autonomous, Battery
- Energy Storage System
- Frequency Regulation
- Frequency Support
