engleski

Optimisation of Large Salient Pole Synchronous Generators

The designs of salient pole generators may differ considerably from one hydroelectric plant to the other. Automatic optimisation procedure is highly desirable, because the designer may have little experience with a similar machine. The presented approach defines the design space by twelve variables, which have the largest influence on the goal function. The design space is constrained by a number of linear and nonlinear constraints. The optimisation process is based on successive linearisations of the goal function and the nonlinear constraints followed by a simplex procedure. The process is highly effective because the goal function is heavily constrained, so the optimum is virtually always on the boundary of the feasibility region. The procedure has been tested on a number of earlier designs. The goal function could have been reduced on average by some 8%, had this software been available at the time of the design of these machines.

electrical machines; salient pole generators; optimisation; nonlinear programming; successive linearisations

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