This paper presents an investigation of the impact of multi-generator power islands on the performance of the most-commonly used anti-islanding protection method, Rate of Change of Frequency (ROCOF). In particular, various generating technology mixes including Photovoltaic panels (PV), Doubly Fed Induction Generators (DFIGs) and Synchronous Generators (SG) are considered. The Non-Detection Zone (NDZ) for a range of ROCOF setting options is assessed systematically and expressed as a percentage of generator MVA rating. It was discovered that ROCOF protection becomes very ineffective when protection time delay is applied. In the majority of islanding situations the generator is disconnected by frequency-based G59 protection.
|Number of pages||6|
|Publication status||Published - 10 Mar 2016|
|Event||The 13th IET International Conference on Developments in Power System Protection 2016 - The Sheraton Hotel, Edinburgh, United Kingdom|
Duration: 7 Mar 2016 → 10 Mar 2016
|Conference||The 13th IET International Conference on Developments in Power System Protection 2016|
|Abbreviated title||DPSP 2016|
|Period||7/03/16 → 10/03/16|
- distributed generation
- loss of mains
- generation mix
- multi-generator power islands
Tzelepis, D., Dysko, A., & Booth, C. (2016). Performance of loss-of-mains detection in multi-generator power islands. Paper presented at The 13th IET International Conference on Developments in Power System Protection 2016, Edinburgh, United Kingdom.