Methods for mapping power generation installations

• US 10,540,530 B2
• Filed: 06/21/2018
• Issued: 01/21/2020
• Est. Priority Date: 03/03/2016
• Status: Active Grant

• Current Assignee: Solaredge Technologies Incorporated
• Original Assignee: Solaredge Technologies Incorporated
• Inventors: Yoscovich, Ilan, Galin, Yoav, Fishelov, Amir, Loewenstern, Yakir, Braginsky, David, Handelsman, Lior, Gidon, Ohad, Sella, Guy
• Primary Examiner(s): Deberadinis, Robert L
• Application Number:
  US16/014,596
• Publication Number:
  US 20190095666A1
• Time in Patent Office: 579 Days
• CPC Class Codes: G06F 17/11 for solving equations , e.g. nonlinear equations, general mathematical optimization problems optimization specially adapted for a specific administrative, business or logistic context G06Q10/04
• CPC Class Codes: G06K 7/10366 the interrogation device being adapted for miscellaneous applications
• CPC Class Codes: G06K 7/1413 1D bar codes
• CPC Class Codes: H02S 50/00 Monitoring or testing of PV systems, e.g. load balancing or fault identification
• CPC Class Codes: Y02E 10/50 Photovoltaic [PV] energy

Abstract

Various implementations described herein are directed to a method for recording, by a device, identifying information of a plurality of components of a photovoltaic (PV) installation. The method may record, by the device, at least one of timestamps or locations corresponding to each component of the plurality of components. The method may generate, based on the identifying information, timestamps, and locations, a map of the PV installation.

Claims

1. An apparatus comprising:

a power electronics device comprising output terminals configured to output electrical power at an electrical current value;

a communication circuit configured to receive a command to change a voltage or an impedance of the output terminals, wherein the command comprises information identifying the power electronics device; and

a controller configured to, based on the command, change the voltage or the impedance of the output terminals independent of the electrical current value.

2. The apparatus of claim 1, wherein the power electronics device comprises at least one element from the group consisting of a direct current (DC) to DC converter, a DC to alternating current (AC) converter, a photovoltaic module, a junction box, a Maximum Power Point Tracking (MPPT) circuit, a sensor circuit, a fuse, a variable impedance circuit, a switch, and a circuit breaker.

3. The apparatus of claim 1, wherein the communication circuit comprises a wireless interface or a power line communication interface.

4. The apparatus of claim 3, wherein the communication circuit comprises the wireless interface, and wherein the controller is configured to retrieve, from the wireless interface, at least one measured or estimated value from the group consisting of a Received Signal Strength Indication (RSSI), an Angle or Direction of Arrival, and Time Difference of Arrival (TDOA).

5. The apparatus of claim 3, wherein the communication circuit comprises the power line communication interface, and wherein the controller is configured to use time domain reflectometry via the power line communication interface to determine an order of other apparatuses serially connected to the output terminals.

6. The apparatus of claim 1, wherein the power electronics device comprises input terminals, and wherein the controller is further configured to control an operational parameter of one or more photovoltaic (PV) modules coupled to the input terminals of the power electronics device, wherein the operational parameter is a parameter from the group consisting of a voltage, a current, a temperature, and an impedance.

7. The apparatus of claim 1, wherein the information identifying the power electronics device distinguishes the power electronics device from one or more other power electronics devices.

8. A method comprising:

receiving a command, using a communication circuit of a power electronics device comprising output terminals, to change a voltage or an impedance of the output terminals, wherein the power electronics device is configured to output electrical power using the output terminals at an electrical current value, and wherein the command comprises information identifying the power electronics device;

comparing, by a controller of the power electronics device, the identifying information of the received command with the identifying information of the power electronics device; and

when a match exists, changing the voltage or the impedance of the output terminals to comply with the command independent of the electrical current value.

9. The method of claim 8, wherein the power electronics device comprises at least one element from the group consisting of a direct current (DC) to DC converter, a DC to alternating current (AC) converter, a photovoltaic module, a junction box, a Maximum Power Point Tracking (MPPT) circuit, a sensor circuit, a fuse, a variable impedance circuit, and a circuit breaker.

10. The method of claim 8, wherein the communication circuit comprises a wireless interface or a power line communication interface.

11. The method of claim 10, wherein the communication circuit comprises the wireless interface, and wherein the controller is configured to retrieve, from the wireless interface, at least one measured or estimated value from the group consisting of a Received Signal Strength Indication (RSSI), an Angle or Direction of Arrival, and Time Difference of Arrival (TDOA).

12. The method of claim 10, wherein the communication circuit comprises the power line communication interface, and wherein the controller is configured to use time domain reflectometry via the power line communication interface to determine an order of other apparatuses serially connected to the output terminals.

13. An apparatus, comprising:

a communication circuit configured to transmit and receive information; and

a controller configured to;

send a command, using the communication circuit, to a first power device comprising output terminals to change a voltage or an impedance of the output terminals independent of an electrical current value;

receive, using the communication circuit, output parameters reported by a plurality of power devices; and

determine, by analyzing the output parameters and the command, which power devices of the plurality of power devices are serially coupled to the first power device.

14. The apparatus of claim 13, further comprising at least one element from the group consisting of a DC to DC converter, a DC to AC converter, a photovoltaic module, a junction box, a MPPT circuit, a sensor circuit, a fuse, a variable impedance circuit, a switch, and a circuit breaker.

15. The apparatus of claim 13, further comprising a DC to AC converter configured to receive solar energy from the plurality of power devices, convert the solar energy by modifying at least one electrical parameter of the solar energy, and send the converted solar energy to an electrical network.

16. The apparatus of claim 13, wherein the communication circuit comprises a wireless interface or a power line communication interface.

17. The apparatus of claim 16, wherein the communication circuit comprises the wireless interface, and wherein the controller is configured to retrieve, from the wireless interface, at least one measured or estimated value from the group consisting of a Received Signal Strength Indication (RSSI), an Angle or Direction of Arrival, and Time Difference of Arrival (TDOA).

18. The apparatus of claim 16, wherein the communication circuit comprises the power line communication interface, and wherein the controller is configured to use time domain reflectometry via the power line communication interface to determine an order of other apparatuses serially connected to the output terminals.

19. The apparatus of claim 16, wherein the controller and the communication circuit are incorporated into a computer system.

20. A system comprising:

a plurality of power sources;

a plurality of power devices, each power device coupled to a respective at least one power source of the plurality of power sources, wherein at least some of the plurality of power devices are connected to form a serial string; and

a system power device configured to send a command, via a communication device, to a selected power device of the plurality of power devices to change a voltage or an impedance of output terminals of the selected power device independent of electrical current between the output terminals;

and wherein the system power device comprises;

the communication device; and

a controller configured to;

send the command to the selected power device wherein the command comprises information identifying the selected power device;

receive electrical parameters from the plurality of power devices; and

analyze the electrical parameters and the command to determine which of the plurality of power devices are serially connected to the selected power device.