Autonomous detection of rapid shutdown condition
AssigneeLunar Energy, Inc.
InventorMark Holveck
Life of this patent
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Abstract
A rapid shutdown system includes a PV (photovoltaic) generator. It further includes a DC (Direct Current)-DC converter receiving power from the PV generator and outputting power. The DC-DC converter outputs power at a high voltage state or a low voltage state. It further includes a DC bus coupled to the DC-DC converter to receive the power outputted by the DC-DC converter. The DC-DC converter transitions from operating in the low voltage state to the high voltage state based at least in part on a voltage measured relative to an output of the DC-DC converter exceeding a voltage limit of the low voltage state.
Claims16
A system, comprising:
- a PV (photovoltaic) generator;
- a DC (Direct Current)-DC converter receiving power from the PV generator and outputting power, wherein the DC-DC converter outputs power at a high voltage state or a low voltage state;
- a DC bus coupled to the DC-DC converter to receive the power outputted by the DC-DC converter;
- and
- wherein the DC-DC converter autonomously exits a rapid shutdown mode at least in part by autonomously transitioning from operating in the low voltage state to the high voltage state based at least in part on a voltage measured relative to an output of the DC-DC converter exceeding a voltage limit of the low voltage state.
A method, comprising:
- receiving power from a PV (photovoltaic) generator and outputting power by a DC (Direct Current)-DC converter, wherein the DC-DC converter outputs power at a high voltage state or a low voltage state;
- wherein a DC bus is coupled to the DC-DC converter to receive the power outputted by the DC-DC converter;
- and
- autonomously exiting a rapid shutdown mode at least in part by autonomously transitioning the DC-DC converter from operating in the low voltage state to the high voltage state based at least in part on a voltage measured relative to an output of the DC-DC converter exceeding a voltage limit of the low voltage state.
Dependencies are inferred from the claim text.