Reliability analysis of fault tolerant drive topologies

Review on signal-by-wire and power-by-wire actuation for more electric aircraft

“…Fortunately, there are many options to deal with reliability in the electric and electromagnetic domains with resort to redundancies: fault-tolerant power electronics 97,98 , redundant electronics/motor architectures 94 , or motor topology. 99 In the mechanical domain, a strong issue is raised when the expected response of an actuator to jamming is fail-passive or fail-functional.…”

Power Generation and Distribution System for a More Electric Aircraft - A Review

“…The Permanent Magnet (PM) generator has a number of favourable characteristics (AbdElhafez & Forsyth, 2009;Argile, 2008;Bianchi, 2003;Jack et al, 1996;Pollock & Chi-Yao, 1997;Mecrow et al, 1996;Mitcham & Cullenm, 2002, 2005):…”

“…However, conventional PM machines are claimed to have inferior fault tolerance compared with SR machines (Argile, 2008;Mecrow et al, 1996;White, 1996). Conventional PM generators are intolerant to elevated temperatures.…”

“…The fault-tolerant PM machines are one solution and offer high levels of redundancy and fault tolerance (Argile, 2008;Ho et al,1988;Mitcham & Grum, 1998;Mellor, at al.,2005). These machines are designed with a high number of phases, such that the machine can continue to deliver a satisfactory level of torque/power after a fault in one or more phases.…”

“…These machines are designed with a high number of phases, such that the machine can continue to deliver a satisfactory level of torque/power after a fault in one or more phases. Furthermore, each phase has minimal electrical, magnetic, and thermal impact upon the others (Argile, 2008;Jack et al, 1996;Jones & Drager, 1997;Mecrow et al, 1996;Mitcham & Cullenm, 2002, 2005White, 1996). This is realised by:…”