Title :
Permanent magnet synchronous generator based wind power generation system fault protection schemes
Author :
Yang, Jian ; Fletcher, J.E. ; O´Reilly, Jim
Author_Institution :
Aston Univ., Birmingham, UK
Abstract :
The PMSG-based wind power generation system protection is presented in this paper. For large-scale systems, a voltage source converter rectifier is included. Protection circuits for this topology are studied with simulation results for cable permanent fault conditions. These electrical protection methods are all in terms of dumping redundant energy resulting from disrupted path of power delivery. Pitch control of large-scale wind turbines are considered for effectively reducing rotor shaft overspeed. Detailed analysis and calculation of damping power and resistances are presented. Simulation results including fault overcurrent, DC-link overvoltage and wind turbine overspeed are shown to illustrate the system responses under different protection schemes to compare their application and effectiveness.
Keywords :
permanent magnet generators; power convertors; power generation control; power generation faults; power generation protection; rectifying circuits; synchronous generators; wind power plants; wind turbines; DC-link overvoltage; cable permanent fault condition; damping power calculation; electrical protection method; fault overcurrent; large-scale wind turbine overspeed; permanent magnet synchronous generator; pitch control; power delivery; protection circuit; resistance calculation; rotor shaft overspeed; voltage-source converter rectifier; wind power generation system fault protection scheme; Permanent magnet synchronous generator (PMSG); damping resistor; fault protection; voltage-source converter (VSC); wind power generation;
Conference_Titel :
Renewable Power Generation (RPG 2011), IET Conference on
Conference_Location :
Edinburgh
DOI :
10.1049/cp.2011.0211