Decision on failure diagnosis and condition monitoring technique for wind conversion system

A Simple-to-Implement Fault Diagnosis Method for Open Switch Fault in Wind System PMSG Drives without Threshold Setting

“…These applications have always demanded service continuity, reliability, and availability. In practice, although PMSG as one of the mature technologies in WS has been widely adopted, its accidents due to some factors such as friction [1,2], high temperature [3], and an operation process, have inevitably occurred [4,5]. Various faults may have occurred in rotor bar [6,7], engine [8], bearing [9,10], wind turbine gearboxes [11], and more.…”

“…Various faults may have occurred in rotor bar [6,7], engine [8], bearing [9,10], wind turbine gearboxes [11], and more. Faulty events may have damaged electrical energy, threatened the safety of the power system, and even harmed human lives and environments [4].…”

“…The fact that electronics faults in WS has accounted to about 1% of the total cost only, which was indicated in Reference [4]. Power converter failures have been generally categorized into two types of faulty, short-circuit faults (SCF) together with OCF.…”

“…While OCFs are associated with slow responses and less danger, it is still connected with gird for the economy and safety [15]. Yet, the potential safety problems could not have been ignored by the public [4]. Many articles have focused on reliability issues of power electronics monitoring methods [4,5,16].…”

“…Yet, the potential safety problems could not have been ignored by the public [4]. Many articles have focused on reliability issues of power electronics monitoring methods [4,5,16]. Generally, these fault diagnosis methods are achieved by the output current or voltage signals such as current-based methods or voltage-based methods [17].…”