Pairing of components in a direct current distributed power generation system
First Claim
1. A method comprising:
- receiving, by a photovoltaic module in an initial mode, an initial signal from an inverter, the initial signal having an initial code modulated therein;
receiving, by the photovoltaic module, a control signal from the inverter, the control signal having a control code modulated therein;
comparing, by the photovoltaic module, said control code with said initial code to produce a comparison;
validating, in response to the comparison being a positive comparison, a control command of said control signal as originating from the inverter; and
changing, in response to the validating of the control command, the photovoltaic module from the initial mode to a normal mode.
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Accused Products
Abstract
A method of signaling between a photovoltaic module and an inverter module. The inverter module is connected to the photovoltaic module. In an initial mode of operation an initial code is modulated thereby producing an initial signal. The initial signal is transmitted from the inverter module to the photovoltaic module. The initial signal is received by the photovoltaic module. The operating mode is then changed to a normal mode of power conversion, and during the normal mode of operation a control signal is transmitted from the inverter to the photovoltaic module. A control code is demodulated and received from the control signal. The control code is compared with the initial code producing a comparison. The control command of the control signal is validated as a valid control command from the inverter module with the control command only acted upon when the comparison is a positive comparison.
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Citations
20 Claims
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1. A method comprising:
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receiving, by a photovoltaic module in an initial mode, an initial signal from an inverter, the initial signal having an initial code modulated therein; receiving, by the photovoltaic module, a control signal from the inverter, the control signal having a control code modulated therein; comparing, by the photovoltaic module, said control code with said initial code to produce a comparison; validating, in response to the comparison being a positive comparison, a control command of said control signal as originating from the inverter; and changing, in response to the validating of the control command, the photovoltaic module from the initial mode to a normal mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A photovoltaic generation system comprising:
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a photovoltaic module including a first transceiver operatively connected to a DC power line; and a load module connected to said DC power line, said load module including a second transceiver operatively connected to said DC power line, and said load module configured to transmit a pairing signal and a command signal to said first transceiver from said second transceiver; wherein said photovoltaic module is configured to, based on said pairing signal, accept as a valid command the command signal and exclude as an invalid command a signal received by said first transceiver that is not transmitted from the load module. - View Dependent Claims (11, 12, 13, 14, 15)
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16. An apparatus comprising:
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a power converter configured to receive power from a photovoltaic source and provide at an output converted power to a load through a power line a transceiver coupled to the output of the power converter; and a processor configured to; receive through the transceiver an initial signal superimposed on the power line from the load, the initial signal having an initial code modulated therein; receive through the transceiver a control signal superimposed on the power line from the load, the control signal having a control code modulated therein; compare the control code with the initial code to produce a comparison; validate, in response to the comparison being a positive comparison, a control command in the control signal as originating from the load; and change, in response to the validating of the control command, the photovoltaic module from operating in an initial mode to operating in a normal mode. - View Dependent Claims (17, 18, 19, 20)
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Specification