Modeling of the Starting Performance of Large Solid-Pole Synchronous Motors Using Equivalent Circuit Approach

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We present a method of modeling the starting performance of large solid pole synchronous motors based on an equivalent circuit approach. In this approach, the solid rotor body is assumed to have two sets of separate virtual windings. Therefore, the two-axis theory can be used for the solid pole synchronous motor. We derived parameters associated with the solid-pole, together with their transformation coefficients. We simulated the starting performance and validated the results by testing a 15 000 hp, 13.2 kV, four-pole solid-pole synchronous motor.