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JP2001189476A - Solar battery - Google Patents

Solar battery

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Publication number
JP2001189476A
JP2001189476A JP37165199A JP37165199A JP2001189476A JP 2001189476 A JP2001189476 A JP 2001189476A JP 37165199 A JP37165199 A JP 37165199A JP 37165199 A JP37165199 A JP 37165199A JP 2001189476 A JP2001189476 A JP 2001189476A
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Prior art keywords
solar
battery
module
converter
dc
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JP37165199A
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Japanese (ja)
Inventor
Kazuaki Azuma
和明 東
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Kyocera Corp
京セラ株式会社
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GASES [GHG] EMISSION, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • Y02E10/56Power conversion electric or electronic aspects
    • Y02E10/566Power conversion electric or electronic aspects concerning power management inside the plant, e.g. battery charging/discharging, economical operation, hybridisation with other energy sources

Abstract

PROBLEM TO BE SOLVED: To provide a solar battery that can effectively utilize the generation power of a solar battery module and at the same time, has improved safety in construction or the like. SOLUTION: A solar battery device 7 is provided with a solar battery module 2 consisting of a plurality of solar battery elements 6, and a converter 5 for boosting the DC output of the solar battery module 2 for outputting, where the converter 5 is arranged at the non-light receiving surface side of the solar battery module 2.

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【発明の属する技術分野】本発明は複数の太陽電池素子(セル)を直列又は直並列に接続して成る太陽電池モジュールの発電電力を出力できるようにした太陽電池装置に関する。 The present invention relates to relates to a solar cell apparatus which can output the generated power of the solar cell module formed by connecting a plurality of solar cell elements (cells) in series or in series-parallel.

【0002】 [0002]

【従来技術とその課題】現在、太陽電池の直流出力をインバータにて交流に変換し、これを商用電力系統と連系するいわゆる系統連系システムが実用化されている。 BACKGROUND OF THE INVENTION Currently, converts a direct current to an alternating current output of the solar cell by the inverter, which is a so-called grid interconnection system for a commercial power system and the communication system has been put to practical use. 例えば、図5に示すように、この種の系統連系システム1 For example, as shown in FIG. 5, this type of system interconnecting system 1
は、一枚のガラス板などに複数のセルを直列または直並列接続させて貼り付けて成る太陽電池モジュール2を直列接続し、これら太陽電池モジュール2の発電により得た直流出力は、インバータ3にて例えば100Vの交流に変換され、商用電力系統4と連系させていた。 Is a solar cell module 2 comprising pasting a plurality of cells, such as a single glass plate by series or series-parallel connection connected in series, the DC output obtained by the power generation of the solar cell module 2 to the inverter 3 is converted Te for example, exchange of 100 V, was allowed to commercial power system 4 and interconnection.

【0003】このような系統連系システム1では、インバータ3を起動させるための直流入力電圧が150V以上は必要であるので、複数の太陽電池モジュール2が直列に接続されて使用されている。 [0003] In such a system interconnection system 1, since the DC input voltage for starting up the inverter 3 is more than 150V is necessary, a plurality of solar cell modules 2 are used connected in series.

【0004】このため、太陽電池モジュール2の必要最低直列数に制限が生じ、小さな容量のシステムが構成出来ないという問題があった。 [0004] For this reason, limited to the minimum necessary number of series-connected solar cell module 2 occurs, the system of small capacity there is a problem that can not be configured.

【0005】また、1枚の太陽電池モジュール2が何らかの原因により故障したり、太陽電池モジュール2の受光面が何かの影になった場合には、直列に接続されている太陽電池モジュール2の全てが使用出来なくなったり、発電効率が低下するという問題があった。 [0005] In addition, one of the solar cell module 2 or fails for some reason, in the case where the light-receiving surface of the solar cell module 2 has become the shadow of something, of the solar cell module 2, which is connected in series all or no longer be used, the power generation efficiency is lowered.

【0006】さらに、太陽電池モジュール2は太陽光等の光が照射されることにより発電する特性であるために、例えばインバータ3との接続工事等の際には高電圧が発生している場合が多く、感電等の危険があった。 Furthermore, in order solar cell module 2 is a characteristic of the power generation by light such as sunlight is irradiated, for example, when the connection construction such as the inverter 3 is when a high voltage is generated many, there was a danger of electric shock.

【0007】本発明は上述した従来の問題点に鑑みてなされたものであり、太陽電池モジュールの発電電力を有効に利用できるとともに、工事等の際の安全性に優れた太陽電池装置を提供することを目的とするものである。 [0007] The present invention has been made in view of the conventional problems described above, it is possible to effectively use the power generated by the solar cell module, which provides excellent photovoltaic device safety during construction, etc. it is an object of the present invention.

【0008】 [0008]

【課題を解決するための手段】上記目的を達成するために、本発明の太陽電池モジュールは、複数の太陽電池素子から成る太陽電池モジュールと該太陽電池モジュールの直流出力を昇圧して出力するコンバータとを備え、該コンバータが該太陽電池モジュールの非受光面側に配置されることを特徴とする。 To achieve the above object, according to the Invention The solar cell module of the present invention, the converter and outputting the boosted DC output of the solar cell module and the solar cell module comprising a plurality of solar cell elements with the door, said converter characterized in that it is arranged on the non-light-receiving surface side of the solar cell module.

【0009】この手段によれば、太陽電池モジュールの非受光面側に太陽電池の出力を昇圧させるコンバータを備えるため、太陽電池モジュールを直列に接続することなく任意の直流出力を得ることが可能となる。 According to this means, since with a converter for boosting the output of the solar cell on the non-light-receiving surface of the solar cell module, it is possible to obtain an arbitrary DC output without connecting the solar cell modules in series Become.

【0010】また、本発明においては太陽電池装置の出力電圧を例えば150V以上とすることにより、系統連系システムにおいて、一枚の太陽電池装置の出力を直接インバータに入力可能となり、また太陽電池装置は並列に接続して使用されるため、影の影響を受けにくくなるものである。 Further, by setting the output voltage of the solar cell devices, such as 150V or more in the present invention, the grid interconnection system allows input directly inverter the output of a single solar cell device and a solar cell device since the used connected in parallel, it is made less susceptible to the influence of a shadow.

【0011】また、太陽電池装置は、コンバータに接続される外部機器からの起動信号を受信することにより、 Further, the solar cell apparatus, by receiving an activation signal from the external device connected to the converter,
コンバータの出力を開始することを特徴とする。 Characterized by starting the output of the converter. これにより接続工事等の際には太陽電池装置からの出力は無く、工事作業時の安全が図れるものである。 Thus no output from the solar cell device at the time of connection work and the like, in which attained safety during construction work.

【0012】さらに起動信号の通信をコンバータの出力線にて行うことを特徴とする。 Furthermore and performs communication start signal at the converter output lines. これにより通信のための専用線が不要となり、コストダウン、配線作業の簡素化が図れるものである。 Thereby unnecessary dedicated lines for communication, in which the cost, simplify the wiring work achieved.

【0013】 [0013]

【発明の実施の形態】以下に、本発明の太陽電池装置について、図面に基づき詳細に説明する。 DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS, the solar cell apparatus of the present invention, will be described with reference to the drawings in detail.

【0014】図1(a),(b)に示すように、透光性を有するガラスやプラスチックス等の基板に、複数のセル(太陽電池素子)6を直並列に接続して貼り付けて構成した太陽電池モジュール2の裏面に、太陽電池モジュール2の出力を所定電圧に昇圧するコンバータ5を、太陽電池モジュールの出力端子に接続している。 [0014] As shown in FIG. 1 (a), (b), a substrate such as glass or plastic having a light-paste by connecting a plurality of cells (solar cell element) 6 is to the serial-to-parallel on the back of the structure and solar cell module 2, the converter 5 for boosting the output of the solar cell module 2 to a predetermined voltage, it is connected to the output terminal of the solar cell module.

【0015】太陽電池モジュール2による出力電圧は1 [0015] The output voltage by the solar cell module 2 1
0〜50V程度であり、この出力電力は数十W〜200 Is about 0~50V, the output power is several tens of W~200
W程度となるが、本発明においてはコンバータ5からの出力電圧を150V以上になるように構成すると良い。 Although the order of W, may constitute the output voltage from the converter 5 to be equal to or greater than the 150V in the present invention.

【0016】図2に示すように、太陽電池装置7の直流出力をインバータ3にて交流に変換し、商用電力系統4 [0016] As shown in FIG. 2, and converts direct current into alternating current output of the solar cell device 7 by the inverter 3, the commercial power system 4
に連系させて系統連系システム1を構成している。 Constitute a system interconnection system 1 by interconnection to. ここで、太陽電池装置7の出力を150V以上とすることにより、太陽電池装置7の出力を直接インバータ3に入力することが可能であり、1枚の太陽電池モジュール単位での系統連系が可能となる。 Here, by the output of the solar cell device 7 and above 150 V, may be entered directly into the inverter 3 outputs of the solar cell device 7, it can be system-interconnected with one photovoltaic module units to become.

【0017】また、太陽電池装置7の出力端子を並列接続とすることにより、数十W〜数十kWの系統連系システムを構成できるが、複数の太陽電池装置7の一部が影になったり故障した場合においても、並列接続であるために、影の部分の太陽電池装置7のみ出力が低下し、システム全体の出力を効率よく取り出すことが可能となり、影の影響を受けにくい系統連系システムを提供できるものである。 [0017] Further, with the parallel connection of the output terminals of the solar cell device 7, it can be configured to several tens W~ tens kW system interconnection system, a portion of the plurality of solar cell device 7 is in shade or in case of failure also, since parallel is connected, only output photovoltaic device 7 of the shadow portion is reduced, it is possible to efficiently extract the output of the entire system, less susceptible system interconnection the influence of a shadow it is those that can provide the system.

【0018】また、図3に示すように、コンバータ5に接続されるインバータ3等の外部機器の起動信号送信機8からの矢印Aの起動信号を受けることにより、コンバータ5からの矢印Bの出力を開始するように構成するとよい。 Further, as shown in FIG. 3, by receiving the activation signal of the arrow A from an external device activation signal transmitter 8 of the inverter 3 or the like connected to the converter 5, the output of the arrow B from the converter 5 the may be configured to start.

【0019】太陽電池モジュールは太陽光等の光を受光して発電するが、本発明の太陽電池装置においては、コンバータの出力側に接続されるインバータ等から発信される起動信号を受信するまでコンバータの動作を停止させ、無出力状態に保つよう制御されている。 The solar cell module is to generate electric power by receiving light such as sunlight, the converter until the solar cell device of the present invention receives an activation signal transmitted from an inverter or the like connected to the output side of the converter the operation is stopped, and is controlled to keep the non-output state. そのため、 for that reason,
接続工事等の取扱時においては無出力状態にあり、取扱者に対しての安全が確実に図れる。 At the time of the handling of the connection construction, etc. is in the non-output state, safety can be achieved reliably with respect to handling person.

【0020】また、図4に示すように、起動信号の受信はコンバータ5の出力線を使用することも可能であり、 Further, as shown in FIG. 4, the reception of the activation signal is also possible to use the output line of the converter 5,
すなわち、出力線を信号線としても使用するようにしてもよく、これにより、例えば搬送波による通信を行う方式を採用することができる。 That may also be also used an output line as a signal line, which makes it possible to employ a method of performing such as communication by carrier waves. ここで、図中矢印Aが起動信号の流れであり、矢印Bが出力を示す。 Here, a flow of an arrow A in the drawing is the activation signal, indicating the output arrow B.

【0021】この方式にて通信を行うことにより、コンバータ5とインバータ3等の外部機器との間において、 [0021] By communicating with this method, in the external device such as a converter 5 and the inverter 3,
通信用の専用線を設ける必要がなく、またコンバータ5 There is no need to provide a dedicated line for communication, also converter 5
の運転中においても、太陽電池の発電量等のデータ通信を行うことも可能となる。 Even during operation, it is possible to perform data communication of the power generation amount of the solar cell.

【0022】 [0022]

【発明の効果】以上詳述したように、本発明の太陽電池装置によれば、複数の太陽電池素子から成る太陽電池モジュールと該太陽電池モジュールの直流出力を昇圧して出力するコンバータとを備え、コンバータが太陽電池モジュールの非受光面側に配置されるため、太陽電池装置全体を小型にすることができる上に、太陽電池モジュールを直列に接続することなく任意の直流出力を得ることが可能となる。 As described above in detail, according to the solar cell device of the present invention, and a converter that boosts and outputs a DC output of the solar cell module and the solar cell module comprising a plurality of solar cell elements since the converter is disposed on the non-light-receiving surface of the solar cell module, on the entire solar cell device can be made compact, it can be obtained any DC output without connecting the solar cell modules in series to become. 特に、太陽電池装置の出力電圧を150 In particular, 150 the output voltage of the solar cell device
V以上とすることにより、太陽電池装置の出力を直接インバータ等に入力可能となり、また太陽電池装置は並列に接続して使用されるため、影の影響を受けにくくなる。 With more than V, enabling input to output direct inverter or the like of the solar cell device, also because the photovoltaic device is used connected in parallel, less susceptible to shadows.

【0023】また、コンバータに接続される外部機器からの信号を受信することにより、コンバータの出力を開始することとしたため、接続工事等の際には太陽電池装置からの出力は無く、工事作業時の安全が図れる。 Further, by receiving a signal from an external device connected to the converter, since it was decided to start the output of the converter, without the output from the solar cell device at the time of connection work and the like, during construction work safety can be achieved of.

【0024】さらに、起動信号の通信はコンバータの出力線にて行うこととしたため、通信のための専用線が不要となり、配線作業の簡素化が図れる。 Furthermore, since the communication start signal was be performed at the converter output lines, unnecessary dedicated lines for communication, can be simplified wiring.

【0025】以上により、太陽電池モジュールの発電電力を有効に利用できるとともに、工事等の際の安全性に優れ、配線が簡単で小型の優れた太陽電池装置を提供することができる。 The [0025] above, it is possible to effectively use the power generated by the solar cell module is excellent in safety in the construction work, the wiring can be provided a simple and compact excellent photovoltaic device.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】本発明に係る太陽電池装置の実施の形態を模式的に説明する図であり、(a)は太陽電池装置の受光面側の様子を示す斜視図、(b)は太陽電池装置の非受光面側の様子を示す斜視図である。 [1] is a diagram schematically illustrating an embodiment of a solar cell apparatus according to the present invention, (a) is a perspective view showing a state of a light-receiving surface of the solar cell device, (b) the solar cell device it is a perspective view showing a state of non-light-receiving surface side.

【図2】本発明に係る太陽電池装置の一実施形態の回路構成図である。 2 is a circuit diagram of an embodiment of a solar cell device according to the present invention.

【図3】本発明に係る太陽電池装置の他の実施形態の回路構成図である。 3 is a circuit diagram of another embodiment of a solar cell device according to the present invention.

【図4】本発明に係る太陽電池装置の他の実施形態の回路構成図である。 It is a circuit diagram of another embodiment of a solar cell device according to the present invention; FIG.

【図5】従来の太陽電池を利用した系統連系システムの形態を示す回路構成図である。 5 is a circuit diagram showing a configuration of a conventional system interconnection system using a solar cell.

【符号の説明】 DESCRIPTION OF SYMBOLS

1:系統連系システム 2:太陽電池モジュール 3:インバータ 4:商用電力系統 5:コンバータ 6:太陽電池素子 7:太陽電池装置 8:起動信号送信機 1: system interconnection 2: solar cell module 3: Inverter 4: commercial power system 5: Converters 6: solar cell element 7: solar cell device 8: Start signal transmitter

Claims (3)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 複数の太陽電池素子を接続して成る太陽電池モジュールと、該太陽電池モジュールの直流出力を昇圧して出力するコンバータとを備えるとともに、該コンバータを前記太陽電池モジュールの非受光面側に配置したことを特徴とする太陽電池装置。 And 1. A solar cell module formed by connecting a plurality of solar cell elements, with and a converter to output the boosted DC output of the solar cell module, the non-light-receiving surface of the converter the solar cell module solar cell device, characterized in that arranged on the side.
  2. 【請求項2】 前記コンバータからの出力の開始を、外部機器からの起動信号を受信することにより行うようにしたことを特徴とする請求項1に記載の太陽電池装置。 2. A method starts output from the converter, a solar cell device according to claim 1, characterized in that to perform by receiving an activation signal from an external device.
  3. 【請求項3】 前記コンバータからの出力線を、前記外部機器からの起動信号を受信する信号線として兼用したことを特徴とする請求項2に記載の太陽電池装置。 Wherein the output lines from the converter, a solar cell apparatus of claim 2, characterized in that also serves as a signal line for receiving an activation signal from the external device.
JP37165199A 1999-12-27 1999-12-27 Solar battery Withdrawn JP2001189476A (en)

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JP2008096140A (en) * 2006-10-06 2008-04-24 Matsushita Electric Ind Co Ltd Status detector for storage battery
JP2011503846A (en) * 2007-11-02 2011-01-27 タイゴ エナジー インコーポレイテッド Apparatus and method for reducing the safety risks associated with solar power systems
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