Title :
Fault-tolerant operation of a 150 kW 3-level neutral-point clamped PWM inverter in a flywheel energy storage system
Author :
Li, Shengming ; Xu, Longya
Author_Institution :
Dept. of Electr. Eng., Ohio State Univ., Columbus, OH, USA
Abstract :
This paper proposes a fault-tolerant operation strategy of three-level neutral-point-clamped PWM inverters in high power, high performance, safety-critical applications. Likely faults are identified and fault-tolerant schemes based on the inherent redundancy of voltage vectors of neutral-point-clamped inverters are presented. Simulation verification is performed and shows good fault handling capability. A 150 kW neutral-point-clamped inverter is constructed for flywheel energy storage applications. Experimental testing of the fault-tolerant operation strategy is in progress.
Keywords :
PWM invertors; fault tolerance; flywheels; 150 kW; 3-level neutral-point-clamped PWM inverter; fault handling capability; fault-tolerant operation; flywheel energy storage applications; flywheel energy storage system; high performance; high power; safety-critical applications; voltage vectors redundancy; Energy storage; Fault tolerance; Fault tolerant systems; Flywheels; Power electronics; Pulse width modulation; Pulse width modulation inverters; Redundancy; Space vector pulse width modulation; Voltage;
Conference_Titel :
Industry Applications Conference, 2001. Thirty-Sixth IAS Annual Meeting. Conference Record of the 2001 IEEE
Conference_Location :
Chicago, IL, USA
Print_ISBN :
0-7803-7114-3
DOI :
10.1109/IAS.2001.955479
