Separation of Wear-Out Failure Modes of IGBT Modules in Grid-Connected Inverter Systems

摘要: Wear-out condition monitoring of IGBT modules with failure mode separation gives some benefits. First, it allows proactive maintenance plans. Further, depending on the mode, different control strategies can be applied to inverters in order improve reliability and availability power electronic systems. This paper proposes a new method for two representative wear-out modes wire-bonded grid-connected inverter real time. The proposed requires just preliminary I – V characterizations modules. only one parameter is used, thus, cost-effective compared using more separate modes. Experimental results verify validity feasibility method.