Patent ID: 8736234

Claim:
A power converter control apparatus connected to a multi-phase AC generator having an armature winding and a field winding and configured to control an output of the multi-phase AC generator, comprising: a power converter part including, a bridge circuit that is formed of a positive arm switching element and a negative arm switching element and rectifies an AC current as an output of the armature winding to a DC current, and a field circuit that controls conduction of the field winding using a field switching element; and a control apparatus part including, a field current detection portion that detects a field current flowing to the field winding, a temperature detection portion that detects a temperature of any one of the multi-phase AC generator, the power converter part, and the control apparatus part, a field current instruction computation portion that computes a field current instruction value on the basis of an operation state of the multi-phase AC generator, a temperature rise suppression portion that computes a generated current suppression value on the basis of an output of the temperature detection portion and computes a field current suppression value on the basis of the generated current suppression value, a field current instruction selection portion that selects one of outputs of the field current instruction value and the field current suppression value whichever is the smaller, and a field current control portion that controls the field current so that an output of the field current instruction selection portion coincides with the field current flowing to the field winding.