[Object] To provide a field-winding rotating electrical machine capable of, even when field current is limited, releasing the limitation of field current within a predetermined range of time in the case where a vehicle needs a normal output. [Solution] A field current limiting section 140 includes a field current limitation instructing section 143 for, when a field current limitation determining section 142 determines that a determination value has reached a predetermined determination threshold value, generating a field current limiting instruction to a field current control section 110 so as to limit field current to be equal to or smaller than a predetermined permissible value during a predetermined field current limitation time T lim . A field current limitation releasing section 150 outputs a field current limitation releasing instruction to the field current limiting section so as to release limitation of the field current during a predetermined field current limitation release time T c . When having received the field current limitation releasing instruction from the field current limitation releasing section, the field current limiting section releases limitation of the field current during the predetermined field current limitation release time.