Inter-island power transmission system and method
In a particular illustrative embodiment of the present invention, an inter-island power transmission system is disclosed. An electronic box is placed on each end of a medium voltage three phase power cable running between two islands. The electronic box senses an open cable on the three phase cable and switches to direct current power transmission on the remaining two good cables. The direct current power is converted back to three phase power transmission on the receiving end of the direct current power.
1. A system for inter-island power transmission comprising:
a processor in data communication with a computer readable medium;
a sensor in data communication with the computer readable medium and the processor;
a set of three phase alternating current power cables in data communication with the sensor, wherein the sensor senses power from a power transmission module on the processor in a first island, wherein an open circuit in one of the three phase power cables is sensed by sensor and the power from the power transmission module is switched from three phase to direct current power transmission and sent to a power reception module;
sensors on the power reception module that sense the power supplied from the power transmission module wherein the processor on the power reception module analyzes the power received from power transmission module as sensed by the sensors on the power transmission module and a power reception status report of the power received from power transmission module at the power reception module stored in the computer readable medium on the power reception module, wherein the power reception status report indicates phase variations, amplitude variations and power factor variations, wherein the power reception processor compares the power origination status report to the power reception status and deviations between the phase variations, amplitude variations and power factor variations between the power origination status report and the power reception status report are reported back to the power transmission module are stored in the computer readable medium as a deviation status report, wherein the deviation status report is sent from the power reception module to the power transmission module and the processor on the power transmission module adjusts the power sent from the power transmission module to substantially minimize deviations between the phase variations, amplitude variations and power factor variations between the power origination status report and the power reception status report are reported back to the power transmission module as reported in the deviation status report.
2. The system of claim 1 , wherein the direct current power received at the power reception module is converted to three phase power at the power reception module.
3. The system of claim 1 , wherein the sensor measures the power supplied from power transmission module and the processor analyzes the power supplied from power transmission module as sensed by the sensor.
4. The system of claim 3 , wherein the power supplied from power transmission module is analyzed for phase variations, amplitude variations and power factor variations and a power origination status report of the power for the power supplied from power transmission module is stored in the computer readable medium.
5. The system of claim 4 , wherein the power origination status report indicates phase variations, amplitude variations and power factor variations.
6. The system of claim 5 , the system further comprising:
an antenna that sends the power origination status report to the power reception module.
7. The system of claim 6 , wherein a processor in the reception module receives the status report and compares the status report to an analysis performed by a processor on the power sensed by sensors of the power received from the power transmission module.
8. A system for inter-island power transmission comprising:
a processor in data communication with a computer readable medium;
a sensor in data communication with the computer readable medium and the processor;
a set of three phase alternating current power cables in data communication with the sensor, wherein the sensor senses power from a power transmission module on the processor in a first island, wherein the sensor measures the power supplied from power transmission module and the processor analyzes the power supplied from power transmission module as sensed by the sensor,
wherein a processor in the reception module receives the status report and compares the status report to an analysis performed by a processor on the power sensed by sensors of the power received from the power transmission module;
sensors on the power reception module that sense the power supplied from power transmission module wherein the processor on the power reception module analyzes the power received from power transmission module as sensed by the sensors on the power transmission module and a power reception status report of the power received from power transmission module at the power reception module stored in the computer readable medium on the power reception module and the power reception status report indicates phase variations, amplitude variations and power factor variations, wherein the power reception processor compares the power origination status report to the power reception status and deviations between the phase variations, amplitude variations and power factor variations between the power origination status report and the power reception status report are reported back to the power transmission module are stored in the computer readable medium as a deviation status report, the deviation status report is sent from the power reception module to the power transmission module and the processor adjusts the power sent from the power transmission module to substantially minimize deviations between the phase variations, amplitude variations and power factor variations between the power origination status report and the power reception status report are reported back to the power transmission module as reported in the deviation status report and the deviation status report is sent from the power reception module to the power transmission module and the processor on the power transmission module adjusts the power sent from the power transmission module to substantially minimize deviations between the phase variations, amplitude variations and power factor variations between the power origination status report and the power reception status report are reported back to the power transmission module as reported in the deviation status report.
9. The system of claim 8 wherein the power supplied from power transmission module is analyzed for phase variations, amplitude variations and power factor variations and a power origination status report of the power for the power supplied from power transmission module is stored in the computer readable medium and the power origination status report indicates phase variations, amplitude variations and power factor variations.
10. A method for inter-island power transmission comprising:
sensing a set of three phase alternating current power cables in data communication with the sensor, wherein the sensor senses the power from a power transmission module on the processor in a first island, wherein the sensor measures the power supplied from power transmission module and the processor analyzes the power supplied from power transmission module as sensed by the sensor,
comparing a status report to an analysis performed by a processor on the power sensed by sensors of the power received from the power transmission module,
comparing a power origination status report to power reception status and deviations between the phase variations, amplitude variations and power factor variations between the power origination status report and the power reception status report;
sending a deviation status report, from the power reception module to the power transmission module;
and adjusting in a power transmission processor, the power sent from the power transmission module to substantially minimize deviations between the phase variations, amplitude variations and power factor variations between the power origination status report and the power reception status report are reported back to the power transmission module as reported in the deviation status report and the deviation status report is sent from the power reception module to the power transmission module and the processor on the power transmission module adjusts the power sent from the power transmission module to substantially minimize deviations between the phase variations, amplitude variations and power factor variations between the power origination status report and the power reception status report are reported back to the power transmission module as reported in the deviation status report.
11. The method of claim 10 , wherein the power supplied from power transmission module is analyzed for phase variations, amplitude variations and power factor variations and a power origination status report of the power for the power supplied from power transmission module is stored in the computer readable medium and the power origination status report indicates phase variations, amplitude variations and power factor variations.
12. The method of claim 10 , the method further comprising:
sensing an open circuit in one of a three phase alternating current power cable set that sends power from a sending electronic box on a first island to a receiving electronic box on a second island, wherein an open circuit on one of the three phase cables is sensed by the first electronic box; and
switching the power from the first island from three phase power to direct current power transmission.