Method for automatic mapping of AC phase conductors and identification of AC buses in a multi-bus power system
View Patent ↗A system is disclosed for detecting if a remote device is associated with a power supply. The system may have a controller having machine readable, non-transitory executable code running thereon for varying a characteristic of a signal being applied to the power supply. The controller further may be configured to compare a measurement obtained from a measurement subsystem relating to a measured signal present at the remote device. The controller may also be configured to make a comparison between the signal being applied to the power supply and the measured signal obtained at the remote device, and to determine whether the remote device is electrically associated with the power supply.
1. A system for detecting if a remote device is associated with a power supply, the system comprising:
a controller having machine readable, non-transitory executable code running thereon for varying a characteristic of a signal being applied to the power supply;
the controller further being configured to:
receive a measurement of an electrical signal obtained by a measurement subsystem of the remote device, and transmitted from the remote device;
compare the received measurement obtained from the measurement subsystem relating to a measured input signal at a power input of the remote device with the signal being applied to the power supply; and
based on a comparison between the signal being applied to the power supply and the measured input signal being applied at the power input of the remote device, determining whether the remote device is electrically associated with the power supply.
2. The system of claim 1 , wherein the signal being applied to the power supply is an input voltage signal, and the characteristic comprises a magnitude of the input voltage signal.
3. The system of claim 2 , wherein the magnitude of the input voltage signal is varied by a percentage of between about 1.5%-2.0%.
4. The system of claim 1 , wherein the signal being applied to the power supply is an alternating current input signal, and the characteristic comprises a frequency of the alternating current input signal.
5. A system for detecting if a remote power providing device is associated with a power supply, wherein the remote power providing device is upstream of the power supply, the system comprising:
a controller having machine readable, non-transitory executable code running thereon for varying an input characteristic of the power supply;
the controller further being configured to:
perform an analysis of a measurement obtained from a measurement subsystem relating to a measured characteristic of power being provided from the remote power providing device, while the controller is varying the input characteristic of the power supply; and
based on the analysis, determining whether the remote power providing device is electrically associated with the power supply; and
wherein the varying of the input characteristic of the power supply includes generating a signal instructing the power supply to vary its input power factor, and the measured characteristic of power is a change in a power factor of the power being provided from the remote power providing device to the power supply.
6. The system of claim 5 , wherein the controller varies the input power factor by a percentage between about 1%-3%.
7. The system of claim 1 , wherein a plurality of the remote devices are present, and wherein the controller is configured to perform the comparison in connection with a measured input signal obtained from each of the plurality of remote devices, to determine which one or more of the plurality of remote devices are associated with the power supply.
8. The system of claim 7 , wherein the determination as to which one or more of the plurality of remote devices are associated with the power supply indicates which ones of the plurality of remote devices are being powered by the power supply.
9. The system of claim 1 , wherein the controller varies the characteristic of the signal being applied to the power supply for a predetermined time duration.
10. The system of claim 9 , wherein the predetermined time duration is one hour or less.
11. A system for detecting and mapping which ones of a plurality of electrically powered devices are being powered by a power supply, the system comprising:
a controller having machine readable, non-transitory executable code running thereon for varying a characteristic of a power output signal being supplied by the power supply, by a predetermined amount, to produce a modified input signal for application to one or more electrically powered devices downstream of the power supply; and
the controller further being configured to:
compare electrical signal measurements obtained by, and received from, a measurement subsystem, each said electrical signal measurement relating to a measured input signal present at an input of each of the plurality of electrically powered devices; and
based on comparisons between the measured input signals and the modified input signal, to detect which ones of the plurality of electrically powered devices are being powered by the given power supply.
12. The system of claim 11 , wherein the characteristic of the power output signal comprises a voltage.
13. The system of claim 11 , wherein the characteristic of the power output signal comprises a frequency.
14. The system of claim 11 , wherein the given power supply comprises an uninterruptible power supply (UPS).
15. A method for detecting if a remote device is associated with a power supply, the method comprising:
using a controller having machine readable, non-transitory executable code running thereon to vary a characteristic of a signal being applied to the power supply;
using the controller to:
receive and compare an electrical signal measurement obtained from a measurement subsystem relating to a measured input signal associated with the remote device; and
determine, based on a comparison between the signal being applied to the power supply and the measured input signal associated with the remote device, indicated by the electrical signal measurement, whether the remote device is electrically associated with the power supply.
16. The method of claim 15 , wherein said varying a characteristic of a signal being applied to the power supply comprises varying one of:
a magnitude of an input voltage signal being applied to the power supply; and
a frequency of the input voltage signal being applied to the power supply.
17. A method for detecting if a power supply is associated with a remote power providing device upstream of the power supply, the method comprising:
using a controller having machine readable, non-transitory executable code running thereon to vary a characteristic of a signal being applied to an input of the power supply;
using the controller to:
compare a measurement obtained from a measurement subsystem relating to a characteristic of an output signal associated with the remote power providing device with the signal being applied to the input of the power supply, to determine whether the remote power providing device is electrically associated with the power supply; and
wherein said varying a characteristic of a signal being applied to the input of the power supply comprises using the signal to instruct the power supply to vary its input power factor, and the characteristic is a magnitude of change of the input power factor.
18. The method of claim 17 , wherein said varying a characteristic of a signal being applied to an input of the power supply comprises varying an input power factor of the power supply.