Solar cell module having an overvoltage preventive element and sunlight power generation system using the solar cell module
AssigneeCanon Kabushiki Kaisha
InventorsNobuyoshi Takehara, Naoki Manabe
Life of this patent
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Abstract
A solar cell module in which a plurality of photovoltaic elements are installed such that they are electrically connected with each other, wherein an overvoltage preventive element is electrically connected to each photovoltaic element in parallel connection, and the overvoltage preventive element exhibits a one-way continuity and has a minimum operating voltage which is smaller than an open-circuit voltage of the photovoltaic element and is greater than an optimum operating voltage of the photovoltaic element. A sunlight power generation system comprises the solar cell module and an inverter.
Claims30
A solar cell module in which a plurality of photovoltaic elements are installed in such a manner as to be electrically connected with each other, wherein an overvoltage preventive element is electrically connected to each of said photovoltaic elements in parallel connection, and said overvoltage preventive element exhibits a one-way continuity and has a minimum operating voltage which is smaller than an open-circuit voltage of and greater than an optimum operating voltage of a photovoltaic element to which said overvoltage preventive element is electrically connected.
A solar cell module in which a plurality of photovoltaic elements are installed in such a manner as to be electrically connected with each other, wherein an overvoltage preventive element is electrically connected to each of said photovoltaic elements in parallel connection, said overvoltage preventive element exhibits a one-way continuity, and said overvoltage preventive element comprises a plurality of constituent elements and a plurality of connection members electrically connected to said constituent elements such that one of two of the connection members which are adjacent to one of said constituent elements is connected to an upper side of said one constituent element and the other connection member is connected to a lower side of said one constituent element.
A solar cell module in which a plurality of photovoltaic elements are installed in such a manner as to be electrically connected with each other, wherein an overvoltage preventive element is electrically connected to each of said photovoltaic elements in parallel connection, said overvoltage preventive element exhibits a one-way continuity, and said overvoltage preventive element comprises a plurality of constituent elements and a plurality of connection members electrically connected to said constituent elements, said connection members comprising upper connection members and lower connection members, said constituent elements being spacedly arranged in a common plane while being sandwiched and held between said upper connection members and said lower connection members such that one of said upper connection members is joined to an upper side of (a) one of the constituent elements, one of said lower connection members is joined to a lower side of said constituent element (a) and also to a lower side of (b) the constituent element which is adjacent to said constituent element (a), another upper connection member is joined to an upper side of said constituent element (b) and also to an upper side of (c) the constituent element which is adjacent to said constituent element (b), and one of the remaining lower connection members is joined to a lower side of said constituent element (c).
A sunlight power generation system comprising a solar cell module and a system interconnection inverter capable of reverse-flowing a direct-current output from said solar cell module into an alternate current system, said solar cell module comprising a plurality of photovoltaic elements electrically connected with each other, wherein an overvoltage preventive element is electrically connected to each of said photovoltaic elements in parallel connection, said overvoltage preventive element comprises a plurality of constituent elements, said overvoltage preventive element exhibits a one-way continuity and has a minimum operating voltage which is smaller than an open-circuit voltage of and greater than an optimum operating voltage of a photovoltaic element to which said overvoltage preventive element is connected.
A sunlight power generation system comprising a solar cell and a mechanism capable of parallel-coupling a direct current power from said solar cell module and a direct current power obtained from a commercial alternate current power supply system by way of rectification to supply to a load, said solar cell module comprising a plurality of photovoltaic elements electrically connected with each other, wherein an overvoltage preventive element is electrically connected to each of said photovoltaic elements in parallel connection, said overvoltage preventive element comprises a plurality of constituent elements, said overvoltage preventive element exhibits a one-way continuity and has a minimum operating voltage which is smaller than an open-circuit voltage of and greater than an optimum operating voltage of a photovoltaic element to which said overvoltage preventive element is connected.
Dependencies are inferred from the claim text.