Voltage Stability and Control of Offshore Wind Farms With AC Collection and HVDC Transmission
- 1 October 2014
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Journal of Emerging and Selected Topics in Power Electronics
- Vol. 2 (4), 1181-1189
- https://doi.org/10.1109/jestpe.2014.2361290
Abstract
This paper investigates the stability and control of offshore wind farms employing medium-voltage ac collection and high-voltage dc (HVDC) transmission to the onshore power grids. Type-IV (full power conversion) turbines and HVDC rectifier based on voltage-source converters are assumed. Output impedance models of the wind turbines and input impedance models of the HVDC rectifier in the positive- and negative-sequence are developed using the harmonic linearization method. An impedance-based stability criterion is then applied to determine the stability of the offshore ac collection bus. Possible instability of the ac bus voltage and resonance between the wind farm and the HVDC rectifier are examined through analysis of the system impedance model. The analytical impedance models are used to identify the root causes of such instability and resonance problems, and to develop possible solutions. Detailed circuit simulation is used to validate the analysis. Individual converter impedance models are also validated by experimental measurements of scaled-down prototypes.Keywords
Funding Information
- Stanford Global Climate and Energy Program
- National Science Foundation (ECCS-1002265)
This publication has 16 references indexed in Scilit:
- Adaptive Control of Grid-Connected Inverters Based on Online Grid Impedance MeasurementsIEEE Transactions on Sustainable Energy, 2014
- Comparative Stability Analysis of Offshore Wind and Marine-Current Farms Feeding Into a Power Grid Using HVDC Links and HVAC LineIEEE Transactions on Power Delivery, 2013
- Small-signal stability analysis of offshore wind farms with LCC HVDCPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2013
- Online grid impedance measurement using discrete-interval binary sequence injectionPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2013
- Three-phase impedance measurement for system stability analysisPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2013
- Impedance Modeling and Analysis of Grid-Connected Voltage-Source ConvertersIEEE Transactions on Power Electronics, 2013
- New Breed of Network Fault-Tolerant Voltage-Source-Converter HVDC Transmission SystemIEEE Transactions on Power Systems, 2012
- A study of renewable energy system harmonic resonance based on a DG test-bedPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2011
- Input Impedance Modeling and Analysis of Line-Commutated RectifiersIEEE Transactions on Power Electronics, 2009
- Overview of Control and Grid Synchronization for Distributed Power Generation SystemsIEEE Transactions on Industrial Electronics, 2006