Coordinating a sequence of opening and closing operations of poles in a solid-state circuit breaker

Patent metadata

Field	Value
Publication number	US-12224575-B2
Application number	US-202217889188-A
Country	US
Kind code	B2
Filing date	Aug 16, 2022
Priority date	Aug 16, 2022
Publication date	Feb 11, 2025
Grant date	Feb 11, 2025

Abstract

A method may include receiving, via at least one processor, a first set of data indicative of a fault being present and send a first signal to a breaker based on the first set of data. The first signal may cause the breaker to open a plurality of poles of the breaker. The method may then involve receiving a second set of data indicative of the fault being cleared and sending a second signal to the breaker based on the second set of data. The second signal may cause the breaker to close a first pole of the plurality of poles at a first time and close a second pole of the plurality of poles at a second time different from the first time.

First claim

The invention claimed is:

1. A system, comprising:
a solid-state circuit breaker configured to couple between a power supply and an electrical load;
one or more sensors configured to measure one or more properties associated with the solid-state circuit breaker, the electrical load, the power supply, or any combination thereof;
a control system configured to communicatively couple to the one or more sensors, wherein the control system is configured to:
receive a first set of data from the one or more sensors, wherein the first set of data is received while the solid-state circuit breaker is open;
send a first signal to the solid-state circuit breaker based on the first set of data, wherein the first signal is configured to cause the solid-state circuit breaker to:
turn on a first semiconductor device associated with a first pole in the solid-state circuit breaker at a first firing angle; and
turn on a second semiconductor device associated with a second pole in the solid-state circuit breaker at a second firing angle different from the first firing angle;

receive a second set of data from the one or more sensors after the first signal is sent to the solid-state circuit breaker; and
send a second signal to the solid-state circuit breaker based on the second set of data, wherein the second signal is configured to cause the solid-state circuit breaker to turn off the first semiconductor device and the second semiconductor device.

2. The system of claim 1 , wherein the one or more sensors comprise one or more temperature sensors, one or more current sensors, one or more voltage sensors, or any combination thereof.

3. The system of claim 1 , wherein the control system is configured to send the first signal in response to the first set of data corresponding to a fault condition being absent.

4. The system of claim 3 , wherein the fault condition corresponds to a short circuit condition between a first phase of the solid-state circuit breaker and a second phase of the solid-state circuit breaker, between the first phase and ground, or both.

5. The system of claim 3 , wherein the control system is configured to send the second signal in response to the second set of data corresponding to an additional fault condition being present.

6. The system of claim 5 , wherein the additional fault condition comprises a short circuit event.

7. The system of claim 1 , wherein the control system is configured to send the second signal within a half cycle of at least one current waveform received by the first pole or the second pole.

8. The system of claim 1 , wherein the second firing angle corresponds to a delay with respect to the first firing angle.

9. A method, comprising:
receiving, via at least one processor, a first set of data indicative of a fault being present;
sending, via the at least one processor, a first signal to a breaker based on the first set of data, wherein the first signal is configured to cause the breaker to open a plurality of poles of the breaker;
receiving, via the at least one processor, a second set of data indicative of the fault being cleared; and
sending, via the at least one processor, a second signal to the breaker based on the second set of data, wherein the second signal is configured to cause the breaker to:
close a first pole of the plurality of poles at a first time; and
close a second pole of the plurality of poles at a second time different from the first time.

10. The method of claim 9 , comprising:
receiving, via the at least one processor, a third set of data after the second signal is sent to the breaker; and
sending, via the at least one processor, a third signal to the breaker based on the third set of data, wherein the third signal is configured to cause the breaker to open the plurality of poles.

11. The method of claim 10 , wherein the third set of data is indicative of an additional fault being present.

12. The method of claim 10 , wherein the breaker is configured to open within a first half cycle of a current waveform received via the first pole or the second pole.

13. The method of claim 9 , wherein the breaker comprises a solid-state circuit breaker comprising a first semiconductor device coupled to the first pole and a second semiconductor device coupled to the second pole.

14. The method of claim 9 , wherein the breaker comprises an electro-mechanical breaker comprising a first contactor coupled to the first pole and a second contactor coupled to the second pole.

15. The method of claim 9 , wherein the first set of data is received from a local control system.

16. The method of claim 9 , wherein the second set of data is received from one or more sensors.

17. A non-transitory, machine-readable medium, comprising machine-readable instructions that, when executed by one or more processors, cause the one or more processors to:
receive a first set of data indicative of a fault being present;
send a first signal to a breaker based on the first set of data, wherein the first signal is configured to cause the breaker to open a plurality of poles of the breaker;
receive a second set of data indicative of the fault being cleared; and
send a second signal to the breaker based on the second set of data, wherein the second signal is configured to cause the breaker to:
close a first pole of the plurality of poles at a first time; and
close a second pole of the plurality of poles at a second time different from the first time.

18. The non-transitory, machine-readable medium of claim 17 , wherein the first time corresponds to a first firing angle, and wherein the second time corresponds to a second firing angle different from the first firing angle.

19. The non-transitory, machine-readable medium of claim 18 , wherein the breaker is configured to open within a first half cycle of a current waveform received via the first pole or the second pole.

20. The non-transitory, machine-readable medium of claim 18 , wherein the breaker corresponds to a solid-state circuit breaker.

Assignees

• Rockwell Automation Tech Inc

Inventors

• Adkins Kyle B
• Kerim Aiman
• Merki Juerg
• Langer Randall S
• Carlson Andrew E
• Elmiger David

Classifications

• H02H3/04

  with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned {(watching of pilot wires H02H1/0084; protection of protective arrangements H02H7/008; indication of the state of electronic switches H03K17/18)} · CPC title

• H02H1/0007

  concerning the detecting means (in general G01R or other subclasses of G01; reed switches H01H71/2445) · CPC title

• H01H9/542

  Contacts shunted by static switch means · CPC title

• H02H3/265 Primary

  responsive to phase angle between voltages or between currents · CPC title

• H02H3/066 Primary

  Reconnection being a consequence of eliminating the fault which caused disconnection · CPC title