2008 34th Annual Conference of IEEE Industrial Electronics 2008
DOI: 10.1109/iecon.2008.4758087
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Cited by 18 publications
(5 citation statements)
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“…Under an inverter OC fault, the faulty IGBT remains in an off-state permanently. When an OC fault affects an inverter device, some current paths will be unavailable [27]. In each faulty condition, according to the CS of leg x (CS x ) and the current direction, the current may follow through an available alternative path.…”
Section: Analysis Of the 3lnpc Drive Under Normal And Faulty Conditionsmentioning
confidence: 99%
“…Under an inverter OC fault, the faulty IGBT remains in an off-state permanently. When an OC fault affects an inverter device, some current paths will be unavailable [27]. In each faulty condition, according to the CS of leg x (CS x ) and the current direction, the current may follow through an available alternative path.…”
Section: Analysis Of the 3lnpc Drive Under Normal And Faulty Conditionsmentioning
confidence: 99%
“…The general setup of this work comprises a three-phase squirrel-cage induction motor connected to a 3LNPC with fault-tolerant capability. In the 3LNPC inverter, a fault-tolerant strategy with bypass switching devices that connect the DC bus neutral-point and each inverter phase was used (Jong-Je et al, 2008). According to this approach, when an open-circuit fault occurs in an IGBT, the inverter faulty leg is turned off, the corresponding bypass switch is activated and a new control strategy is applied to the remainder phases available.…”
Section: System Configurationmentioning
confidence: 99%
“…Under an inverter OC fault, the faulty IGBT is unable to commutate in agreement with the control pulses generated by the modulator and remains in off-state permanently. This OC fault can appear if the IGBT nominal parameters, such as rated voltage V ce or rated collector current I c are exceeded, or when the gate driver unit or the gate firing hardware fail [27].…”
Section: Operation Of a 3lnpc Ac Drive Under Normal And Faulty Conditmentioning
confidence: 99%
“…When an OC fault affects an inverter switch, some output voltage space vectors will not be available because of the impossibility of using some switching states. Table 1 shows the unavailable switching states because of an OC fault in one semiconductor of leg x, with x ∈ {A, B, C} [27]. This table shows that when an OC fault occurs in one of the outer switches (such as S x1 and S x4 ), all the leg output voltages that make use of the switching states P or N are not available.…”
Section: Operation Of a 3lnpc Ac Drive Under Normal And Faulty Conditmentioning
confidence: 99%