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This paper proposes a reliability modeling method for induction motor drives based on an equivalent dq0 circuit model. The machine input voltages or currents are modeled as sources dependent on states and commands. This enables reliability analysis for different control strategies. The method utilizes failure modes and effects analysis, Monte Carlo simulations, and Markov models. Different controllers,...
This paper introduces a generalized reliability model of a solar power unit (SPU) based on physical characteristics including material, operating conditions, and electrical ratings. An SPU includes a photovoltaic panel, power converter, control and sensing. Possible faults in each component of the unit are surveyed and their failure rates based on physics-of-failure models are formulated. PV panel...
DC power systems can be made more reliable by using multiple buses for redundancy. Multiple buses provide multiple configuration options for supplying power to the load. Diode OR'ing with auctioneering diodes is perhaps the most common method to connect a load to multiple buses. Although the diode action is automatic and fault-tolerant, it results in ill-defined bus currents when the bus voltages...
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