Electrical phase synchronization

• US 9,293,924 B2
• Filed: 02/15/2011
• Issued: 03/22/2016
• Est. Priority Date: 02/15/2011
• Status: Active Grant

• Current Assignee: Raytheon Company (Rtx Corporation)
• Original Assignee: Raytheon Company (Rtx Corporation)
• Inventors: Kung, Kenneth C., Flynn, Thomas J.
• Primary Examiner(s): Rodriguez, Carlos Ortiz
• Assistant Examiner(s): Alvarez, Olvin Lopez
• Application Number:
  US13/027,817
• Publication Number:
  US 20120205987A1
• Time in Patent Office: 1,862 Days
• Field of Search: 700/286, 700/295, 700/293, 700/296, 307/87
• US Class Current: 1/1
• CPC Class Codes: H02J 3/40 Synchronising a generator for connection to a network or to another generator

Abstract

The electrical phase synchronization technology includes a system, a method, and/or components thereof. In some examples, the electrical phase synchronization system includes an electrical power transmission network having a plurality of transmission lines and a plurality of electrical power generation devices. Each electrical power generation device includes an electrical power source and a control unit.

Claims

1. An electrical phase synchronization system, the system comprising:

at least one or more mobile electrical power generation devices each comprise a mobile electrical power source, a communication module, and an associated control unit, wherein at least one mobile electrical power generation device comprises;

at least one mobile electrical power source configured to supply electrical power to a known input location having a pre-defined electrical phase configuration in an electrical power transmission network via at least one transmission line of the electrical power transmission network;

at least one associated control unit configured to phase synchronize the electrical power from the at least one mobile electrical power source to be input to the electrical power transmission network with electrical power at the input location independently and autonomously from any other phase synchronizing device or controller based on receiving at a communication module satellite positioning geographic location information for the at least one mobile electrical power source and time synchronization data from a timing device, and based on calculating a time for transmission and a phase at transmission for the at least one mobile device based only on a transmission line distance between the geographic location of the at least one mobile electrical power source and the known input location on the electrical power transmission network, the received time synchronization data, and the pre-defined electrical phase configuration data for the known input location; and

wherein the at least one associated control unit is communicatively isolated from any electrical phase synchronization device of the electrical power transmission network, and the at least one associated control unit is further configured to phase synchronize the electrical power from the at least one mobile electrical power source again when a change in a geographic position of the at least one electric power generation device occurs.

2. The system of claim 1, wherein the electrical power supplied to the electrical power transmission network by the at least one mobile electrical power generation device is phase synchronized within an electrical phase tolerance range.

3. The system of claim 1, wherein the at least one associated control unit is further configured to determine at least one of frequency, voltage, current, phase, and duration for the electrical power supply from the at least one mobile electrical power source based on the geographic location of the at least one mobile electrical power generation device.

4. The system of claim 3, wherein the at least one associated control unit is further configured to phase synchronize at least one of the determined frequency, voltage, current, phase, and duration of the electrical power supply from the at least one mobile electrical power source with the input location on the electrical power transmission network.

5. The system of claim 1, wherein the at least one mobile electrical power generation device further comprises an alert module configured to generate an alert based on the change in the geographic location of the at least one electric power generation device.

6. A method for electrical phase synchronization, the method comprising:

determining by a mobile electrical power generation device a transmission line distance between a geographic location of a mobile electrical power source and a geographic location of a known input location having a pre-defined electrical phase configuration on an electrical power transmission network;

calculating independently and autonomously from any other phase synchronizing device or controller a time for transmission and a phase at transmission for electrical power generated by the mobile electrical power source to be transmitted to the known input location on the electrical power transmission network based only on the transmission line distance, a time synchronization data, and a pre-defined electrical phase configuration data for the known input location;

and phase synchronizing the electrical power from the mobile electrical power source to be input to the electrical power transmission network based on the time for transmission and phase at transmission to the known input location on the electrical power transmission network,

wherein the mobile electrical power generation device is communicatively isolated from any electrical phase synchronization device of the electrical power transmission network, and at least one associated control unit is configured to phase synchronize the electrical power from the mobile electrical power source again when a change in a geographic position of the electric power generation device occurs.

7. The method of claim 6, further comprising determining at least one of frequency, voltage, current, phase, and duration for the mobile electrical power source based on the geographic location of the mobile electrical power source.

8. The method of claim 7, further comprising phase synchronizing the mobile electrical power source based on at least one of the determined frequency, voltage, current, phase, and duration.

9. The method of claim 6, further comprising dynamically receiving the pre-defined electrical phase configuration data for the known input location.

10. The method of claim 6, further comprising determining the geographic location of the mobile electrical power source based on data received from a global positioning system.

11. The method of claim 6, further comprising receiving the time synchronization data from a timing device.

12. A control unit for electrical phase synchronization, the control unit comprising:

a geographic determination module configured to determine a transmission line distance between a geographic location of a mobile electrical power source of a mobile electrical power generation device and a geographic location of a known input location having a pre-defined electrical phase configuration on an electrical power transmission network;

an electrical power determination module configured to calculate a time for transmission and a phase at transmission for the mobile electrical power source based only on the transmission line distance, time synchronization data, and the pre-defined electrical phase configuration data for the known input location;

and a mobile electrical power supply synchronization device configured to phase synchronize the mobile electrical power source by transmitting the electrical power supply to the electrical power transmission network in accordance with the determined time for transmission and phase at transmission,

wherein the mobile electrical power generation device is communicatively isolated from any electrical phase synchronization device of the electrical power transmission network, and the electrical power determination module is further configured to phase synchronize the electrical power from the at least one mobile electrical power source again when a change in a geographic position of the at least one electric power generation device occurs.

13. The control unit of claim 12, further comprising a geographic positioning module configured to determine the geographic location of the mobile electrical power sources.

14. The control unit of claim 12, wherein the electrical power determination module is further configured to determine at least one of frequency, voltage, current, and duration for the mobile electrical power source based on the geographic location of the mobile electrical power source.

15. The control unit of claim 14, wherein the mobile electrical power supply synchronization device is further configured to phase synchronize the mobile electrical power sources based on at least one of the determined frequency, voltage, current, and duration.