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US 11,309,805 B2Granted
Inverter and photovoltaic installation
AssigneeSiemens Aktiengesellschaft
InventorMarvin Tannhäuser
Life of this patent
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Abstract
An inverter that is a micro-photovoltaic inverter includes a DC-DC converter on an input side of the inverter. The DC-DC converter has three output voltage levels. The inverter also includes an inverter element having at least three input voltage levels. The inverter element is electrically connected to the DC-DC converter.
Claims17
An inverter comprising:
- a DC-DC converter on an input side of the inverter, the DC-DC converter having three output voltage levels;
- and
- an inverter element having at least three input voltage levels, the inverter element being electrically connected to the DC-DC converter,
- wherein the DC-DC converter on the input side comprises an inverting DC-DC converter and a non-inverting DC-DC converter,
- wherein the non-inverting DC-DC converter and the inverting DC-DC converter operate in an interleaved clocking mode,
- wherein the non-inverting DC-DC converter comprises a boost converter, the inverting DC-DC converter comprises a buck-boost converter, or a combination thereof, and
- wherein the non-inverting DC-DC converter and the inverting DC-DC converter are jointly fed in parallel by a DC voltage.
4 more elements
A photovoltaic installation comprising:
- a micro-photovoltaic inverter including an inverter, the inverter including:
- a DC-DC converter on an input side of the inverter, the DC-DC converter having three output voltage levels;
- and
- an inverter element having at least three input voltage levels, the inverter element being electrically connected to the DC-DC converter,
- wherein the DC-DC converter on the input side comprises an inverting DC-DC converter and a non-inverting DC-DC converter,
- wherein the non-inverting DC-DC converter and the inverting DC-DC converter operate in an interleaved clocking mode, and
- wherein inputs of the non-inverting DC-DC converter and the inverting DC-DC converter are jointly fed in parallel by a DC voltage.
4 more elements
An inverter comprising:
- a DC-DC converter on an input side of the inverter, the DC-DC converter having three output voltage levels;
- and
- an inverter element having at least three input voltage levels, the inverter element being electrically connected to the DC-DC converter,
- wherein the DC-DC converter on the input side comprises an inverting DC-DC converter and a non-inverting DC-DC converter,
- wherein the non-inverting DC-DC converter and the inverting DC-DC converter operate in an interleaved clocking mode, and
- wherein the inverting DC-DC converter and the non-inverting DC-DC converter are configured for output voltages that differ from one another by not more than twenty percent.
3 more elements
Dependencies are inferred from the claim text.