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A status report of the modelling and simulation work that is being undertaken as part of the TIMES (Totally Integrated More Electric Systems) project is presented. Dynamic power quality simulations have been used to asses the performance of the electrical system of a EMA based actuation system for an Airbus A330 size aircraft, for both low voltage 115 V, and high voltage 230 V three-phase AC systems. The high voltage system is shown to have benefits in terms of power quality and reduced size and weight of equipment.

The results of a comparative study of the conventional centralized electrical power distribution system (EPDS) and the semi-distributed EPDS are presented. The analysis for the weight and cost of each EPDS is performed with the help of a program using a load database from an A340 aircraft. The power quality and the fault handling analysis of both EPDSs is performed through time domain simulations.