One embodiment describes a method that includes determining a desired torque level of a motor actuated by a motor starter; determining, using a control system, a configuration of the motor starter to achieve the desired torque level, in which determining the configuration includes determining which
One embodiment describes a method that includes determining a desired torque level of a motor actuated by a motor starter; determining, using a control system, a configuration of the motor starter to achieve the desired torque level, in which determining the configuration includes determining which of a plurality of switching devices in the motor starter should be opened and which should be closed; and instructing, using the control system, the motor starter to implement the determined configuration by opening or closing one or more of the plurality of switching devices.
대표청구항▼
1. A method comprising: determining a desired torque level of a motor actuated by a motor starter;determining, using a control system, a configuration of the motor starter to achieve the desired torque level, wherein determining the configuration comprises determining which of a plurality of switchi
1. A method comprising: determining a desired torque level of a motor actuated by a motor starter;determining, using a control system, a configuration of the motor starter to achieve the desired torque level, wherein determining the configuration comprises determining which of a plurality of switching devices in the motor starter should be opened and which should be closed;instructing, using the control system, the motor starter to implement the determined configuration by opening or closing one or more of the plurality of switching devices;instructing, using the control system, the motor starter to operate in the configuration to supply a first current to the motor to enable the motor produce a first torque level;monitoring, using the control system, magnitude of the first current; andinstructing, using the control system, the motor starter to change to another configuration to supply a second current to the motor to enable the motor to produce a second torque level after the magnitude of the first current reaches a steady state. 2. The method of claim 1, wherein instructing the motor starter to implement the determined configuration comprises sequentially instructing each of the plurality of switching devices to open, close, or remain in a current state. 3. The method of claim 1, wherein: each of the plurality of switching devices comprises a single pole, single current carrying path switching device; andthe motor starter comprises a wye-delta motor starter. 4. The method of claim 1, wherein instructing the motor starter to implement the determined configuration comprises: determining whether each of the plurality of switching is open or closed; andinstructing a closed switching device that should be open in the determined configuration to open or instructing an open switching device that should be closed in the determined configuration to close. 5. The method of claim 1, wherein the desired torque level is less than or equal to approximately 33% of a maximum torque level of the motor, wherein determining the configuration of the motor starter to achieve the desired torque level comprises determining that: a first switching device should be closed;a second switching device should be open;a third switching device should be closed;a fourth switching device should be open; anda fifth switching device should be open. 6. The method of claim 1, wherein the desired torque level is less than or equal to approximately 22% of a maximum torque level of the motor, wherein determining the configuration of the motor starter to achieve the desired torque level comprises determining that: a first switching device should be open;a second switching device should be open;a third switching device should be closed;a fourth switching device should be open; anda fifth switching device should be open. 7. The method of claim 1, wherein the desired torque level is less than or equal to approximately 55% of a maximum torque level of the motor, wherein determining the configuration of the motor starter to achieve the desired torque level comprises determining that: a first switching device should be open;a second switching device should be closed;a third switching device should be closed;a fourth switching device should be open; anda fifth switching device should be open. 8. The method of claim 1, wherein the desired torque level is less than or equal to approximately 66% of a maximum torque level of the motor, wherein determining the configuration of the motor starter to achieve the desired torque level comprises determining that: a first switching device should be open;a second switching device should be closed;a third switching device should be open;a fourth switching device should be closed; anda fifth switching device should be open. 9. The method of claim 1, wherein the desired torque level is less than or equal to approximately 100% of a maximum torque level of the motor, wherein determining the configuration of the motor starter to achieve the desired torque level comprises determining that: a first switching device should be open;a second switching device should be closed;a third switching device should be open;a fourth switching device should be closed; anda fifth switching device should be closed. 10. The method of claim 1, wherein the desired torque level is less than or equal to approximately 33% of a maximum torque level of the motor, wherein determining the configuration of the motor starter to achieve the desired torque level comprises determining that: a first switching device should be closed;a second switching device should be open;a third switching device should be closed;a fourth switching device should be open;a fifth switching device should be closed; anda sixth switching device should be open. 11. The method of claim 1, wherein the desired torque level is less than or equal to approximately 22% of a maximum torque level of the motor, wherein determining the configuration of the motor starter to achieve the desired torque level comprises determining that: a first switching device should be open;a second switching device should be open;a third switching device should be closed;a fourth switching device should be open;a fifth switching device should be closed; anda sixth switching device should be open. 12. The method of claim 1, wherein the desired torque level is less than or equal to approximately 55% of a maximum torque level of the motor, wherein determining the configuration of the motor starter to achieve the desired torque level comprises determining that: a first switching device should be open;a second switching device should be closed;a third switching device should be closed;a fourth switching device should be open;a fifth switching device should be closed; anda sixth switching device should be open. 13. The method of claim 1, wherein the desired torque level is less than or equal to approximately 66% of a maximum torque level of the motor, wherein determining the configuration of the motor starter to achieve the desired torque level comprises determining that: a first switching device should be open;a second switching device should be closed;a third switching device should be closed;a fourth switching device should be closed;a fifth switching device should be closed; anda sixth switching device should be open. 14. The method of claim 1, wherein the desired torque level is less than or equal to approximately 100% of a maximum torque level of the motor, wherein determining the configuration of the motor starter to achieve the desired torque level comprises determining that: a first switching device should be open;a second switching device should be closed;a third switching device should be open;a fourth switching device should be closed;a fifth switching device should be open; anda sixth switching device should be closed. 15. A motor starter system, comprising: a wye-delta starter comprising a plurality of switching devices, wherein each of the plurality of switching devices is configured to be selectively connected and disconnected to supply electric power to windings of a motor; anda control circuitry configured to: determine a desired torque level of the motor starter system;determine a configuration that indicates which of the plurality of switching devices should be connected and which of the plurality of switching devices should be disconnected to achieve the desired torque level;instruct the wye-delta starter to implement the configuration to supply a first current to the motor to enable the motor produce a first torque level;monitor magnitude of the first current; andinstruct the wye-delta starter to change to another configuration to supply a second current to the motor to enable the motor to produce a second torque level after the magnitude of the first current reaches a steady state. 16. The motor starter system of claim 15, wherein each of the plurality of switching devices is configured to connect or disconnect one phase of multi-phase electric power. 17. The motor starter system of claim 15, wherein the plurality of switching devices comprises five single pole, single current carrying path switching devices. 18. The motor starter system of claim 15, wherein the plurality of switching devices comprises six single pole, single current carrying path switching devices. 19. The motor starter system of claim 15, wherein the motor starter is configured to continuously actuate the motor with a positive torque. 20. A method comprising: determining, using a control system, a first configuration of a motor starter expected to achieve a first torque level, wherein determining the first configuration comprises determining which of a plurality of switching devices in the motor starter should be opened and which should be closed;determining, using the control system, a second configuration of the motor starter expected to achieve a second torque level, wherein determining the second configuration comprises determining which of the plurality of switching devices in the motor starter should be opened and which should be closed; andinstructing, using the control system, the motor starter to implement the first configuration by opening or closing one or more of the plurality of switching devices;instructing, using the control system, the motor starter to operate in the first configuration to supply a first current to a motor to enable the motor produce the first torque level;instructing, using the control system, the motor starter to change to the second configuration by opening or closing one or more of the plurality of switching devices after the magnitude of the first current reaches a target state; andinstructing, using the control system, the motor starter to operate in the second configuration to supply a second current to the motor to enable the motor to produce the second torque level.
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이 특허에 인용된 특허 (62)
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