US 11,658,488 B2
Photovoltaic power optimization system
Xuancai Zhu, Shanghai (CN); Bingwen Weng, Shanghai (CN); Qin Wang, Shanghai (CN); and Wei Zhao, Shanghai (CN)
Assigned to DELTA ELECTRONICS (SHANGHAI) CO., LTD., Shanghai (CN)
Filed by Delta Electronics (Shanghai) Co., Ltd., Shanghai (CN)
Filed on Jan. 6, 2020, as Appl. No. 16/734,431.
Claims priority of application No. 201920751348.2 (CN), filed on May 23, 2019.
Prior Publication US 2020/0373761 A1, Nov. 26, 2020
Int. Cl. H02J 3/38 (2006.01); H02S 40/32 (2014.01); H02J 13/00 (2006.01)
CPC H02J 3/381 (2013.01) [H02J 13/00026 (2020.01); H02S 40/32 (2014.12); H02J 2300/26 (2020.01); Y02E 10/56 (2013.01); Y02E 40/70 (2013.01); Y02E 60/00 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A photovoltaic power optimization system, comprising:
a plurality of photovoltaic panels;
a photovoltaic optimizing module array, comprising
a plurality of photovoltaic optimizing modules connected in series, each of the photovoltaic optimizing module being electrically connected to at least one of the photovoltaic panels;
an inverter electrically connected to output terminals of the photovoltaic optimizing module array, for converting a DC power into an AC power; and
a data center unit wirelessly communicates with at least one of the photovoltaic optimizing modules, and also communicates with the inverter via power line; and
the plurality of photovoltaic optimizing modules comprising N groups of photovoltaic optimizing modules, wherein the distance between each group of the N groups of photovoltaic optimizing modules and the data center gets closer from a first group to a N-th group of the N groups of photovoltaic optimizing modules;
the first group comprising of one photovoltaic optimizing module, which serves as a signal source for collecting data information and transmitting the collected data information to photovoltaic optimizing modules of a second group of the N groups of photovoltaic optimizing modules,
the second group comprising of more than one photovoltaic optimizing modules, and the first group of photovoltaic optimizing module is adjacent to the second group of photovoltaic optimizing module,
each of a k-th group, a (k−1)th group and a (k+1)th group of the N groups of photovoltaic optimizing module comprising of more than one photovoltaic optimizing modules, each photovoltaic optimizing module of the k-th group serves as transmission node for collecting data information, receiving data information from photovoltaic optimizing modules of the (k−1)th group and other photovoltaic optimizing modules of the k-th group, and transmitting the collected data information and received data information to photovoltaic optimizing modules of the (k+1)th group and other photovoltaic optimizing modules of the k-th group, and the k-th group is adjacent to the (k−1)th group and the (k+1)th group 2<k<(N−1),
and each photovoltaic optimizing module of a N-th group of the N groups of photovoltaic optimizing modules serves as transmission node for collecting data information, receiving data information from photovoltaic optimizing modules of a (N−1)th group of the N groups of photovoltaic optimizing modules and other photovoltaic optimizing modules of the N-th group, and transmitting the collected data information and received data information to the data center unit and other photovoltaic optimizing modules of the N-th group, the N-th group is adjacent to the (N−1)th group and the data center unit.