Patent ID: 11936258
Assignee: nan
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  F | IPC F  H

Claim 8:
9. A method for controlling the outputs of electric motors, comprising the steps of:
providing a first electric motor comprising a first stator, a first rotor being rotatable relative to the first stator, the first stator including a plurality of first stator slots, a plurality of first stator teeth, and a first stator winding unit being wound on the first stator teeth and installed in the first stator slots, the first stator winding unit comprising a first winding group comprising a first primary winding with a first number of poles and a first rated power and a first secondary winding with the first number of poles and a second rated power being smaller than the first rated power;
providing a second electric motor comprising a second stator, a second rotor being rotatable relative to the second stator, the second stator including a plurality of second stator slots, a plurality of second stator teeth, and second stator winding unit being wound on the second stator teeth and installed in the second stator slots, the second stator winding unit comprising a second winding group comprising a second primary winding with the second number of poles and a third rated power, a second secondary winding with the first number of poles and a fourth rated power being smaller than the third rated power, a third secondary winding with the first number of poles and a fifth rated power being smaller than the fourth rated power;
providing a control device respectively coupled with the first electric motor, the second electric motor and an external electrical power source for sensing a needed loading state of the first and second electric motors, and suppling a required connection relationship between the first stator winding unit, the second stator winding unit and the external electrical power source based on the needed loading state by the control device;
the required connection relationship between the first stator winding unit, the second stator winding unit and the external electrical power source selected from one of the following connection relationships:
when the control device control device senses a first needed loading state, the first primary winding, the first secondary winding, the second primary winding primary winding, the second secondary winding and the third secondary winding are simultaneously connected to the external electrical power source;
when the control device control device senses a second needed loading state, the first primary winding and second primary winding primary winding are simultaneously connected to the external electrical power source;
when the control device control device senses a third needed loading state, the first primary winding and the first secondary winding are simultaneously connected to the external electrical power source;
when the control device control device senses a fourth needed loading state, the second primary winding, the second secondary winding and the ninth secondary winding are simultaneously connected to the external electrical power source;
when the control device control device senses a fifth needed loading state, only the first primary winding is connected to the external electrical power source;
when the control device control device senses a sixth needed loading state, only the first secondary winding is connected to the external electrical power source;
when the control device control device senses a seventh needed loading state, the second primary winding and second secondary winding are simultaneously connected to the external electrical power source;
when the control device control device senses an eighth needed loading state, the second primary winding and the third secondary winding are simultaneously connected to the external electrical power source;
when the control device control device senses a ninth needed loading state, only the second primary winding is connected to the external electrical power source;
when the control device control device senses a tenth needed loading state, only the second secondary winding is connected to the external electrical power source; and
when the control device control device senses an eleventh needed loading state, only the third secondary winding is connected to the external electrical power source.