Systems and Method for Limiting Maximum Voltage in Solar Photovoltaic Power Generation Systems
First Claim
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1. An energy production system, comprising:
- a string bus;
a first solar module connected to the string bus and generating a first voltage;
a second solar module connected to the string bus and generating a second voltage; and
a controller, communicatively coupled to the first solar module and the second solar module, configured to control at least one of the first and second voltages provided to the string bus based at least in part on a maximum regulatory safety voltage.
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Abstract
Apparatuses and methods are disclosed for regulating or limiting the voltage output from solar modules connected in series such that the voltage on a string bus connecting those solar modules does not exceed regulatory or safety limitations. This can be accomplished via a controller, local management units (for downconverting solar module voltage output), or a combination of the two.
120 Citations
20 Claims
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1. An energy production system, comprising:
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a string bus; a first solar module connected to the string bus and generating a first voltage; a second solar module connected to the string bus and generating a second voltage; and a controller, communicatively coupled to the first solar module and the second solar module, configured to control at least one of the first and second voltages provided to the string bus based at least in part on a maximum regulatory safety voltage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An energy production system, comprising:
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a string bus; a solar module connected to the string bus and generating a voltage; and a controller in communication with the solar module and the string bus, and configured to control the voltage provided to the string bus based at least in part on a maximum regulatory safety voltage. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A method comprising:
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monitoring a voltage across a string bus section connecting a solar module to a voltage output; and limiting the voltage output based on a maximum regulatory safety voltage by limiting a voltage of the solar module. - View Dependent Claims (18, 19, 20)
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Specification