Title :
4-wire Matrix Converter based voltage sag/swell generator to test LVRT in renewable energy systems
Author :
Diaz, Matias ; Cardenas, Roberto ; Soto, Gustavo
Author_Institution :
Univ. of Chile, Santiago, Chile
Abstract :
The incorporation of high power rate Wind Energy Conversion Systems (WECS) have significant influence in the stability, power quality and reliability of the electrical grid. Therefore, strict grid codes have been developed during the last years in order to enhance overall stability of the systems. Thereby Low Voltage Ride Through (LVRT) requirements is a key issue for WECS. In order to test the response of WECS under grid-voltage sag conditions, a Voltage Sag Generator (VSG) is needed. This paper presents a novel Matrix Converter based VSG Prototype in order to study the fulfilment of LVRT requirements. Voltage sags/swell of variable magnitude, duration and type can be generated for the proposed VSG without using complex modulation schemes.
Keywords :
direct energy conversion; matrix convertors; power generation reliability; power grids; power supply quality; power system stability; wind power; 4-wire matrix converter based swell generator; 4-wire matrix converter based voltage sag; LVRT test; VSG prototype; WECS; electrical grid power quality; electrical grid reliability; electrical grid stability; grid-voltage sag conditions; high power rate wind energy conversion systems; low voltage ride through requirements; renewable energy systems; voltage sag generator; Generators; Matrix converters; Radio frequency; Switches; Low Voltage Ride Through; Matrix Converter; Voltage sag Generator; Wind Energy Conversion Systems;
Conference_Titel :
Ecological Vehicles and Renewable Energies (EVER), 2014 Ninth International Conference on
Conference_Location :
Monte-Carlo
Print_ISBN :
978-1-4799-3786-8
DOI :
10.1109/EVER.2014.6844123
