Title :
Phase Multilevel Inverter Fault Diagnosis and Tolerant Control Technique
Author :
Wang Baocheng ; Wang Jie ; Sun Xiaofeng ; Wu Junjuan ; Wu Weiyang
Author_Institution :
Yanshan Univ., Qinhuangdao
Abstract :
This paper gives a solution to implement a self-diagnosis and tolerant control for a 3-level neutral point clamped inverter. Redundancies in semiconductor configurations are used to enable a continuous operation with a faulty power switch. The fault tolerance is obtained by using a SCR to substitute faulty switch. In case of failure events, the on-line diagnosis technique can fix faulty switch and take relevant tolerance measures. Through simulations and experiments, this diagnosis technique is validated
Keywords :
circuit testing; fault diagnosis; fault tolerance; invertors; power semiconductor switches; thyristors; 3-level neutral point clamped inverter; SCR; fault diagnosis; faulty power switch; on-line diagnosis technique; phase multilevel inverter; semiconductor configuration; tolerant control technique; Bridge circuits; Circuit faults; Fault diagnosis; Fault tolerance; Inverters; Power semiconductor switches; Signal analysis; Sun; Topology; Voltage; component; digital signal processing; multilevel inverter; on-line fault diagnosis; tolerant technique;
Conference_Titel :
Power Electronics and Motion Control Conference, 2006. IPEMC 2006. CES/IEEE 5th International
Conference_Location :
Shanghai
Print_ISBN :
1-4244-0448-7
DOI :
10.1109/IPEMC.2006.4778047
