The cost of model accuracy in the design of wound rotor synchronous machines for DC generation

This paper examines the added cost, in terms of mass, required to provide confidence that a machine optimized for passive DC rectification can be accurately represented using a qd model. The inclusion of a set of constraints during the design process is shown to greatly improve the match between qd and detailed models along the entire range of operation for the system, however it is seen that there is an appreciable mass penalty for doing so. Pareto-optimal fronts are used to quantify the cost.