Photovoltaic-based power system
AssigneeSMA Solar Technology AG
InventorsKristo Iila, Soeren Baekhoej Kjaer, Christian Harald Benz, Wulf-Toke Franke
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Abstract
The present disclosure relates to a photovoltaic power installation configured to deliver power to a power distribution grid at a point of common coupling, the photovoltaic power installation including a determination unit configured to determine an amount of self-consumed power of the photovoltaic power installation, and a first power inverter configured to generate power in accordance with 1) the determined amount of self-consumed power, and 2) a power level to be delivered at the point of common coupling. The disclosure further relates to an associated method.
Claims17
A photovoltaic power installation configured to deliver power to a power distribution grid at a point of common coupling, the photovoltaic power installation comprising:
- a determination unit configured to determine an amount of self-consumed power of the photovoltaic power installation, and
- a first power inverter configured to generate power in accordance with the determined amount of self-consumed power, and configured to deliver a power level at the point of common coupling in accordance with an externally provided power reference,
- wherein the power reference comprises a fixed or dynamic amount of power to be delivered at the point of common coupling or a percentage of a nominal capacity of the photovoltaic power installation, wherein the dynamic amount of power comprises a dynamic value based on a time of the day, or a time of the year, or a value manually provided by a user.
A method for operating a photovoltaic power installation configured to deliver power to a power distribution grid at a point of common coupling, the method comprising:
- determining an amount of self-consumed power of the photovoltaic installation using a first measurement unit, and
- operating one or more power inverters of the photovoltaic power installation in accordance with:
- the determined amount of self-consumed power, and
- a power level to be delivered at the point of common coupling in accordance with an externally provided power reference,
- wherein the power reference comprises a fixed or dynamic amount of power to be delivered at the point of common coupling or a percentage of a nominal capacity of the photovoltaic power installation, wherein the dynamic amount of power comprises a dynamic value based on a time of the day, or a time of the year, or a value manually provided by a user.
Dependencies are inferred from the claim text.