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A copper-loss-minimizing torque control method is considered for wound synchronous machines (WSMs) in the field-weakening region. In general, the current-minimizing solutions are often found at the intersection of the torque and voltage curves. However, those curves change depending on the rotor field current in WSM. This complicates the problem of obtaining an analytic loss-minimizing solution. In...
The copper loss minimizing torque control method in the field weakening region was considered for wound synchronous machines (WSMs). In general, the maximum voltage should be utilized to minimize the stator current under the assumption that the power factor is equal to unity. Therefore, the current minimizing solutions are often found at the intersection of torque and voltage curves. However, if the...
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