Open AccessGrid connected photovoltaic power plants: new aspects in switching procedures with vacuum circuit breakers involved
Author(s) -
Kuczek Tomasz,
Florkowski Marek
Publication year - 2017
Publication title -
iet generation, transmission and distribution
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.92
H-Index - 110
eISSN - 1751-8695
pISSN - 1751-8687
DOI - 10.1049/iet-gtd.2017.0131
Subject(s) - circuit breaker , photovoltaic system , electrical engineering , grid , computer science , engineering , automotive engineering , mathematics , geometry
This study presents vacuum circuit breaker switching investigation on a grid connected photovoltaic power plants. The focal point of this research is to discuss potential overvoltages during various switching operations in terms of the medium‐voltage insulation coordination procedure. Influence of the LC filters of solar converters on high‐frequency transients was highlighted, with main focus on generation of arc re‐strikes and pre‐strikes during opening or closing of the vacuum circuit breaker. Scheduled and emergency switching operations were analysed by means of laboratory experiments and Power Systems Computer Aided Design (PSCAD) simulations. Alternative switching sequences were proposed for mitigation of transient overvoltages.