Details
| Original language | English |
|---|---|
| Title of host publication | 2014 IEEE Energy Conversion Congress and Exposition, ECCE 2014 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 2633-2640 |
| Number of pages | 8 |
| ISBN (electronic) | 9781479956982 |
| Publication status | Published - 11 Nov 2014 |
Publication series
| Name | 2014 IEEE Energy Conversion Congress and Exposition, ECCE 2014 |
|---|
Abstract
Instability of current control loops in grid-connected converters can cause problems in wind power systems. This phenomenon has gained increasing attention in recent literature. Often, the current control loop is designed with conventional methods neglecting the presence of grid resonances. If this approach would bear the risk of instability when grid resonances occur, it could mean a large risk for wind turbine operation. This paper investigates under which circumstances such an control loop can become instable. It evaluates the influence of a grid voltage feedforward (GVFF) on stability of the current control by transfer function analysis and simulation. The results show that with GVFF, such a simple design approach yields stable current control loops, while without GVFF, instability can exist. The simulation and analysis are validated by experimental results.
ASJC Scopus subject areas
- Energy(all)
- Fuel Technology
- Energy(all)
- Energy Engineering and Power Technology
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2014 IEEE Energy Conversion Congress and Exposition, ECCE 2014. Institute of Electrical and Electronics Engineers Inc., 2014. p. 2633-2640 6953754 (2014 IEEE Energy Conversion Congress and Exposition, ECCE 2014).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Prediction and avoidance of grid-connected converter's instability caused by wind Park typical, load-varying grid resonance
AU - Fuchs, F.
AU - Mertens, A.
PY - 2014/11/11
Y1 - 2014/11/11
N2 - Instability of current control loops in grid-connected converters can cause problems in wind power systems. This phenomenon has gained increasing attention in recent literature. Often, the current control loop is designed with conventional methods neglecting the presence of grid resonances. If this approach would bear the risk of instability when grid resonances occur, it could mean a large risk for wind turbine operation. This paper investigates under which circumstances such an control loop can become instable. It evaluates the influence of a grid voltage feedforward (GVFF) on stability of the current control by transfer function analysis and simulation. The results show that with GVFF, such a simple design approach yields stable current control loops, while without GVFF, instability can exist. The simulation and analysis are validated by experimental results.
AB - Instability of current control loops in grid-connected converters can cause problems in wind power systems. This phenomenon has gained increasing attention in recent literature. Often, the current control loop is designed with conventional methods neglecting the presence of grid resonances. If this approach would bear the risk of instability when grid resonances occur, it could mean a large risk for wind turbine operation. This paper investigates under which circumstances such an control loop can become instable. It evaluates the influence of a grid voltage feedforward (GVFF) on stability of the current control by transfer function analysis and simulation. The results show that with GVFF, such a simple design approach yields stable current control loops, while without GVFF, instability can exist. The simulation and analysis are validated by experimental results.
UR - http://www.scopus.com/inward/record.url?scp=84934300584&partnerID=8YFLogxK
U2 - 10.1109/ECCE.2014.6953754
DO - 10.1109/ECCE.2014.6953754
M3 - Conference contribution
AN - SCOPUS:84934300584
T3 - 2014 IEEE Energy Conversion Congress and Exposition, ECCE 2014
SP - 2633
EP - 2640
BT - 2014 IEEE Energy Conversion Congress and Exposition, ECCE 2014
PB - Institute of Electrical and Electronics Engineers Inc.
ER -