Systems and methods for controlling firing delay in multi-phase relay devices

Patent metadata

Field	Value
Publication number	US-12087529-B2
Application number	US-202217856481-A
Country	US
Kind code	B2
Filing date	Jul 1, 2022
Priority date	Sep 30, 2019
Publication date	Sep 10, 2024
Grant date	Sep 10, 2024

Abstract

A control system may include a processor that may receive a first dataset associated with a current received at a load device coupled to a relay device. The processor may also determine harmonics data associated with the current and determine a switching profile to control moving a first armature of three armatures in the relay device based on the harmonics data. The switching profile is configured to control movement of the first armature between a first position and a second position, and wherein the switching profile comprises a firing angle for moving the first armature with respect to an electrical waveform, a second armature, and a third armature. The processor may then control a current provided to a relay coil of the relay device based on the switching profile, such that the relay coil causes the first armature to move.

First claim

The invention claimed is:

1. A system, comprising:
a switch device, comprising:
an armature configured to move between a first position that electrically couples a first contact to a second contact and a second position that electrically uncouples the first contact from the second contact;
a coil is configured to receive a voltage configured to magnetize the coil, thereby causing the armature to move from the first position to the second position; and
a control system configured to:
receive a first dataset associated with a load device coupled to the switch device;
determine that the load device comprises a magnetic core based on the first dataset;
determine a switching profile to control moving the armature between the first position and the second position based on a presence of the magnetic core, wherein the switching profile comprises a firing angle for moving the armature with respect to an electrical waveform; and
control the voltage provided to the coil based on the switching profile.

2. The system of claim 1 , wherein the switch device comprises:
a second armature configured to move between a third position that electrically couples a third contact to a fourth contact and a fourth position that electrically uncouples the third contact from the fourth contact; and
a third armature configured to move between a fifth position that electrically couples a fifth contact to a sixth contact and a sixth position that electrically uncouples the fifth contact from the sixth contact, wherein the switching profile is configured to cause the second armature and the third armature to move before the armature.

3. The system of claim 1 , wherein the first dataset is received from one or more sensors configured to measure current associated with the load device.

4. The system of claim 1 , wherein the control system is configured to determine that the load device comprises the magnetic core by receiving an indication that the load device comprises the magnetic core.

5. The system of claim 4 , wherein the control system is configured to receive the indication via a user input.

6. The system of claim 4 , wherein the control system is configured to receive the indication via an additional control system configured to operate the load device.

7. The system of claim 1 , wherein the control system is configured to adjust the switching profile to achieve lower harmonics for the load device.

8. The system of claim 1 , wherein the switching profile is configured to increase an amount of time allotted for the magnetic core to magnetize.

9. The system of claim 1 , wherein the control system is configured to:
receive a second dataset indicative of a request to soft start the load device; and
adjust the switching profile based on the second dataset.

10. A control system, comprising a processor configured to:
receive a first dataset associated with a load device coupled to a switch device;
determine that the load device comprises a magnetic core based on the first dataset;
determine a switching profile to control moving a first armature of three armatures in the switch device based on a presence of the magnetic core, wherein the switching profile is configured to control movement of the first armature between a first position and a second position, and wherein the switching profile comprises a firing angle for moving the first armature with respect to an electrical waveform, a second armature, and a third armature; and
control a current provided to a coil of the switch device based on the switching profile, wherein the coil is configured to cause the first armature to move.

11. The control system of claim 10 , wherein the first dataset is received from one or more sensors.

12. The control system of claim 10 , wherein the processor is configured to:
receive a second dataset indicative of a request to soft start the load device; and
adjust the switching profile based on the second dataset.

13. The control system of claim 10 , wherein:
the second armature is configured to move between a third position that electrically couples a third contact to a fourth contact and a fourth position that electrically uncouples the third contact from the fourth contact; and
the third armature is configured to move between a fifth position that electrically couples a fifth contact to a sixth contact and a sixth position that electrically uncouples the fifth contact from the sixth contact, wherein the switching profile is configured to cause the second armature and the third armature to move before the first armature.

14. The control system of claim 10 , wherein the switching profile comprises a beta delay, and wherein the beta delay varies directly with respect to a size of the magnetic core.

15. The control system of claim 10 , wherein the processor is configured to receive the first dataset by cycling power to the load device and receiving the first dataset from one or more sensors.

16. A method, comprising:
receiving, via at least one processor, a first dataset associated with a load device coupled to a switch device;
determining, via the at least one processor, that the load device comprises a magnetic core based on the first dataset;
determining, via the at least one processor, a switching profile to control moving a first armature of three armatures in the switch device based on a presence of the magnetic core, wherein the switching profile is configured to control movement of the first armature between a first position and a second position, and wherein the switching profile comprises a firing angle for moving the first armature with respect to an electrical waveform, a second armature, and a third armature; and
controlling, via the at least one processor, a current provided to a coil of the switch device based on the switching profile, wherein the coil is configured to cause the first armature to move.

17. The method of claim 16 , wherein the first dataset is provided via a user input.

18. The method of claim 16 , wherein the first dataset is received via a current sensor.

19. The method of claim 16 , wherein the first dataset is received via a control system associated with the load device.

20. The method of claim 16 , wherein the switching profile comprises a beta delay.

Assignees

• Rockwell Automation Tech Inc

Inventors

• Omari Ahmad K
• Jaap Andrew J
• Langer Randall S

Classifications

• H01H50/54

  Contact arrangements · CPC title

• H01H50/44

  Magnetic coils or windings · CPC title

• H01H50/18

  Movable parts of magnetic circuits, e.g. armature · CPC title

• H01H47/22

  for supplying energising current for relay coil · CPC title

• H01H47/02

  for modifying the operation of the relay · CPC title