US 12,132,444 B2
Photovoltaic system, photovoltaic unit grouping method, computing device, and storage medium
Xun Ma, Dongguan (CN); Yu Sun, Shenzhen (CN); and Yixuan Lv, Beijing (CN)
Assigned to HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by Huawei Digital Power Technologies Co., Ltd., Shenzhen (CN)
Filed on Aug. 9, 2022, as Appl. No. 17/883,744.
Application 17/883,744 is a continuation of application No. PCT/CN2021/080077, filed on Mar. 10, 2021.
Claims priority of application No. 202010186543.2 (CN), filed on Mar. 17, 2020.
Prior Publication US 2022/0393642 A1, Dec. 8, 2022
Int. Cl. H02S 50/10 (2014.01); H02S 40/32 (2014.01); H02S 40/36 (2014.01); H04B 3/48 (2015.01)
CPC H02S 50/10 (2014.12) [H02S 40/32 (2014.12); H02S 40/36 (2014.12); H04B 3/48 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A photovoltaic system comprising:
an inverter, and
a plurality of photovoltaic units connected to the inverter, the plurality of photovoltaic units comprising a plurality of controllers, wherein each photovoltaic unit of the plurality of photovoltaic units comprises a controller and one or more photovoltaic modules connected to the controller, and wherein the controller in each photovoltaic unit is configured to regulate an output status of the one or more photovoltaic modules,
wherein the plurality of controllers are configured to:
obtain a plurality of attenuation reference factors of a plurality of power carrier signals transmitted between the plurality of controllers in the plurality of photovoltaic units, the plurality of attenuation reference factors corresponding to a plurality of attenuation degrees, wherein a first power carrier signal of the plurality of power carrier signals carries first identification information of a first controller of the plurality of controllers that sends the first power carrier signal, wherein a first attenuation reference factor of the plurality of attenuation reference factors is used to reflect a first attenuation degree of the plurality of attenuation degrees of signal attenuation of the first power carrier signal in a process of being transmitted to a second controller of the plurality of controllers in a second photovoltaic unit of the plurality of photovoltaic units from the first controller that is in a first photovoltaic unit of the plurality of photovoltaic units and that is indicated by the first identification information in the first power carrier signal, and
wherein the inverter is configured to:
group the plurality of photovoltaic units based on the plurality of attenuation degrees of the plurality of power carrier signals obtained by the plurality of photovoltaic units.