JP4540423B2 - Renewable power generation monitoring system - Google Patents

Renewable power generation monitoring system Download PDF

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JP4540423B2
JP4540423B2 JP2004239714A JP2004239714A JP4540423B2 JP 4540423 B2 JP4540423 B2 JP 4540423B2 JP 2004239714 A JP2004239714 A JP 2004239714A JP 2004239714 A JP2004239714 A JP 2004239714A JP 4540423 B2 JP4540423 B2 JP 4540423B2
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JP2006059986A (en
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修平 藤原
良之 河野
通博 田所
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Mitsubishi Electric Corp
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    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

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Description

この発明は、間隔を隔てて複数台設置された自然エネルギ−利用発電装置の各発電量の合計の発電量を監視装置により監視する自然エネルギ−利用発電監視システムに関するものである。 The present invention relates to a natural energy-based power generation monitoring system in which a monitoring device monitors the total power generation amount of each of the natural energy-based power generation devices installed at intervals.

従来の自然エネルギ−利用発電監視方式の一つである太陽光発電監視方式では、例えば、特開２０００−２８４００６号公報（特許文献１）に記載されているように、間隔を隔てて複数台設置された太陽光発電装置の各々の発電量を、各太陽光発電装置毎に個別に計測し、これら計測した個別の発電量の情報を、個別の接続ケ−ブルを介して、表示ユニットへ個別に送信していた。   In the solar power generation monitoring system that is one of the conventional natural energy-based power generation monitoring systems, for example, as described in Japanese Patent Laid-Open No. 2000-284006 (Patent Document 1), a plurality of units are installed at intervals. The power generation amount of each of the solar power generation devices measured is individually measured for each solar power generation device, and the information on the measured individual power generation amount is individually transmitted to the display unit via the individual connection cable. Had been sent to.

また、前述の特許文献１には記載されてないが、従来の自然エネルギ−利用発電監視方式の他の一つである風力発電監視方式でも、間隔を隔てて複数台設置された風力発電装置の各々の発電量、各風力発電装置毎に個別に計測し、これら計測した個別の発電量の情報を、個別の接続ケ−ブルを介して、表示ユニットへ個別に送信していた。   In addition, although not described in the above-mentioned Patent Document 1, a wind power generation monitoring system that is another conventional power generation monitoring system using natural energy is also used in a wind power generation apparatus in which a plurality of wind power generation apparatuses are installed at intervals. Each power generation amount and each wind power generation apparatus were individually measured, and information on the measured individual power generation amounts was individually transmitted to the display unit via individual connection cables.

特開２０００−２８４００６号公報（図２及びその説明）JP 2000-284006 A (FIG. 2 and its description)

従来の太陽光発電監視方式や風力発電監視方式では、前述のように、間隔を隔てて複数台設置された発電装置の各々の発電量、各発電装置毎に個別に計測し、これら計測した個別の発電量の情報を、個別の接続ケ−ブルを介して、表示ユニットへ個別に送信するので、各発電装置毎に、計測装置、計測した発電量の情報の送信装置、計測した発電量の情報を表示ユニットへ伝送するための接続ケ−ブルが必要であり、これら計測、送信、伝送の装置コストが高価になる。   In the conventional solar power generation monitoring system and wind power generation monitoring system, as described above, the power generation amount of each of the power generation apparatuses installed at intervals is measured individually for each power generation apparatus, and these individual measurements are performed. Since the power generation amount information is individually transmitted to the display unit via the individual connection cable, for each power generation device, the measurement device, the measured power generation amount transmission device, the measured power generation amount A connection cable for transmitting information to the display unit is required, and the cost of measuring, transmitting, and transmitting apparatus becomes expensive.

この発明は、前述のような実情に鑑みてなされたもので、間隔を隔てて複数台設置された自然エネルギ−利用発電装置の各発電量の合計の発電量を監視装置により監視する自然エネルギ−利用発電監視システムにおいて、計測、送信、伝送の装置コストを低減することを目的とするものである。 The present invention has been made in view of the above-described circumstances, and a natural energy monitor for monitoring a total power generation amount of each power generation amount of a natural energy utilization power generation device installed at a plurality of intervals. The purpose of the power generation monitoring system is to reduce the cost of measurement, transmission, and transmission.

この発明に係る自然エネルギ−利用発電監視システムは、間隔を隔てて複数台設置された給電用の自然エネルギ−利用発電装置からなる発電装置群、前記給電用の各自然エネルギ−利用発電装置と共通の自然エネルギ−環境下に設置された計測用の自然エネルギ−利用発電装置、前記計測用の自然エネルギ−利用発電装置の発電量から前記複数台の自然エネルギ−利用発電装置の各発電量の合計の発電量を、発電容量と発電量との関係式VA1：KVA2≒KW1：KW2（但し、KVA1は前記複数台の自然エネルギ−利用発電装置の合計発電容量、KVA2は前記計測用の自然エネルギ−利用発電装置の発電容量、KW1は前記複数台の自然エネルギ−利用発電装置の合計発電量、KW2は前記計測用の自然エネルギ−利用発電装置の発電量）に基づいて前記発電装置群における前記複数台の自然エネルギ−利用発電装置の合計の発電量KW1を推定する合計出力計算装置、及び前記合計出力計算装置の出力を受信する監視装置を備え、前記合計出力計算装置が推定した前記複数台の自然エネルギ−利用発電装置の合計の発電量KW1に基づいて前記監視装置が監視動作するものである。 Natural energy according to the present invention - utilizing power monitoring system, a natural energy power supply disposed a plurality at intervals - power generator group consisting of utilizing power generation device, the natural energy of the previous SL for feeding - and available power generator A measurement-use natural energy-use power generation device installed in a common natural energy environment, and a power generation amount of the measurement-use natural energy-use power generation device for each power generation amount of the plurality of natural energy-use power generation devices. The total power generation amount is expressed by a relational expression VA1: KVA2≈KW1: KW2 (where KVA1 is the total power generation capacity of the plurality of natural energy-utilizing power generation devices, and KVA2 is the natural energy for measurement) -The power generation capacity of the power generation device, KW1 is the total power generation amount of the plurality of natural energy use power generation devices, and KW2 is the power generation amount of the natural energy for measurement power generation device). A total output calculation device for estimating a total power generation amount KW1 of the plurality of natural energy-utilizing power generation devices; and a monitoring device for receiving an output of the total output calculation device, wherein the plurality of the total output calculation devices estimated The monitoring device performs a monitoring operation on the basis of the total power generation amount KW1 of the natural energy utilizing power generation device .

この発明は、間隔を隔てて複数台設置された給電用の自然エネルギ−利用発電装置からなる発電装置群、前記給電用の各自然エネルギ−利用発電装置と共通の自然エネルギ−環境下に設置された計測用の自然エネルギ−利用発電装置、前記計測用の自然エネルギ−利用発電装置の発電量から前記複数台の自然エネルギ−利用発電装置の各発電量の合計の発電量を、発電容量と発電量との関係式VA1：KVA2≒KW1：KW2（但し、KVA1は前記複数台の自然エネルギ−利用発電装置の合計発電容量、KVA2は前記計測用の自然エネルギ−利用発電装置の発電容量、KW1は前記複数台の自然エネルギ−利用発電装置の合計発電量、KW2は前記計測用の自然エネルギ−利用発電装置の発電量）に基づいて前記発電装置群における前記複数台の自然エネルギ−利用発電装置の合計の発電量KW1を推定する合計出力計算装置、及び前記合計出力計算装置の出力を受信する監視装置を備え、前記合計出力計算装置が推定した前記複数台の自然エネルギ−利用発電装置の合計の発電量KW1に基づいて前記監視装置が監視動作するので、各発電装置毎に、計測装置、計測した発電量の情報の送信装置、計測した発電量の情報を表示ユニットへ伝送するための接続ケ−ブルを設ける必要がなく、前記給電用の各自然エネルギ−利用発電装置と共通の自然エネルギ−環境下に設置された計測用の自然エネルギ−利用発電装置、前記計測用の自然エネルギ−利用発電装置の発電量から複数台の自然エネルギ−利用発電装置の合計の発電量を推定する合計出力計算装置、推定した合計発電量の情報に基づいて監視動作する監視装置だけ設ければよいので、計測、送信、伝送の装置コストを低減することができる効果がある。 The present invention, at a distance natural energy for power supply installed multiple - installed in an environment - power generator group consisting of utilizing power generator, before Symbol the natural energy for power supply - common natural energy and utilization power generating device spontaneous energy for measurement - available power generator, natural energy for the measurement - the plurality of natural energy from the power generation amount of available power generation device - the power generation amount of the sum of the amount of power generated by the utilization power generator, a power generation capacity Relational expression with power generation amount VA1: KVA2≈KW1: KW2 (where KVA1 is the total power generation capacity of the plurality of natural energy-based power generation apparatuses, KVA2 is the power generation capacity of the natural energy-use power generation apparatus for measurement, KW1 Is a total power generation amount of the plurality of natural energy utilizing power generation devices, and KW2 is a power generation amount of the measurement natural energy utilizing power generation device). A total output calculation device that estimates the total power generation amount KW1, and a monitoring device that receives the output of the total output calculation device, the total output of the plurality of natural energy utilization power generation devices estimated by the total output calculation device Since the monitoring device performs a monitoring operation based on the power generation amount KW1 , for each power generation device, a measuring device, a transmission device for information on the measured power generation amount, and a connection cable for transmitting the information on the measured power generation amount to the display unit. There is no need to provide a bull, and a natural energy utilization power generation apparatus for measurement installed in a natural energy environment common to each of the natural energy utilization power generation apparatuses for feeding, and the natural energy utilization power generation for measurement a plurality of natural energy from the power generation amount of the device - said monitoring device for operation monitoring, based on the total output calculation unit, estimated total power generation amount of information for estimating the power generation amount of the total available power generator Since it Kere, measuring, transmitting, there is an effect that it is possible to reduce the equipment cost of the transmission.

実施の形態１．
以下この発明の実施の形態１を図１〜図３により説明する。図１は自然エネルギ−利用発電監視方式を実施するシステム構成の一例を示す図、図２は図１のシステムの動作フロ−を示す図、図３は付属計測装置での計測値に基づく比例調整値のデ−タベ−スを示す図である。 Embodiment 1 FIG.
Embodiment 1 of the present invention will be described below with reference to FIGS. FIG. 1 is a diagram showing an example of a system configuration for implementing a natural energy-based power generation monitoring system, FIG. 2 is a diagram showing an operation flow of the system of FIG. 1, and FIG. 3 is a proportional adjustment based on measured values in an attached measuring device. It is a figure which shows the database of a value.

図１に示してあるように、電力系統１に接続され、監視装置２と計測用の自然エネルギ−利用発電装置３と付属計測装置４と合計出力計算装置５とからなる監視システムを有する自然エネルギ−利用発電装置群６は、共通の自然エネルギ−環境下にある複数個の給電用の自然エネルギ−利用発電装置６ａ〜６ｎで構成されている。   As shown in FIG. 1, a natural energy having a monitoring system connected to a power system 1 and comprising a monitoring device 2, a measurement-use natural energy utilization power generation device 3, an attached measurement device 4, and a total output calculation device 5. The power generation device group 6 is composed of a plurality of power supply natural energy power generation devices 6a to 6n in a common natural energy environment.

前記監視装置２は、制御機能も有しており、風力発電装置や太陽光発電装置等の給電用の自然エネルギ−利用発電装置６ａ〜６ｎの各発電量の合計発電量の推定計算値(KW1es)（別途後述する）を利用し、その計算値の監視や計算値に応じて１つまたは複数の系統制御機器に指令を行う装置である。   The monitoring device 2 also has a control function, and is an estimated calculation value (KW1es) of the total power generation amount of each power generation amount of the natural energy utilization power generation devices 6a to 6n for power feeding such as a wind power generation device or a solar power generation device. ) (Which will be described later), and is a device that monitors one or more system control devices according to the monitoring of the calculated value and the calculated value.

前述の「計算値の監視」とは、例えば変電所の系統監視装置における監視であり、例えば前記推定計算値(KW1es)を表示する機能である。   The “calculated value monitoring” described above is, for example, monitoring in a grid monitoring device at a substation, and is a function of displaying the estimated calculated value (KW1es), for example.

前述の「系統制御機器に指令を行う」とは、前記系統制御機器が例えば変圧器の場合、そのオンラインタップ制御装置に前記推定計算値(KW1es)の値をもとにタップ動作指令を行うことである。   The above-mentioned “instruct the system control device” means that, when the system control device is a transformer, for example, performs a tap operation command to the online tap control device based on the value of the estimated calculation value (KW1es). It is.

前記系統制御機器が例えば電力貯蔵装置の場合、前記給電用の自然エネルギ−利用発電装置６ａ〜６ｎの実際の合計発電量に応じて電力貯蔵装置に電力を貯蔵することで配電系統における逆潮流（前記給電用の自然エネルギ−利用発電装置６ａ〜６ｎから商用電力給電側への潮流）など前記給電用の自然エネルギ−利用発電装置６ａ〜６ｎの発電に起因する系統への影響を防止または軽減する。   When the system control device is, for example, a power storage device, a reverse power flow in the distribution system is performed by storing power in the power storage device according to the actual total power generation amount of the natural energy-use power generation devices 6a to 6n for power supply ( Preventing or reducing the influence on the grid caused by the power generation of the power-supplying natural energy generators 6a to 6n, such as the power flow from the power-supplying natural energy generators 6a to 6n to the commercial power supply side). .

前記付属計測装置４は、前記合計出力計算装置５の計算精度を向上させるための情報を計測するものである。   The attached measuring device 4 measures information for improving the calculation accuracy of the total output calculating device 5.

前述の「前記合計出力計算装置５の計算精度を向上させるための情報」とは、前記給電用の自然エネルギ−利用発電装置６ａ〜６ｎの設置環境の気温、前記計測用の自然エネルギ−利用発電装置３の温度、時刻等であり必要に応じて追加および省略する。   The above-mentioned “information for improving the calculation accuracy of the total output calculation device 5” means the temperature of the installation environment of the natural energy-use power generation devices 6a to 6n for power supply, the natural energy-use power generation for measurement. The temperature and time of the device 3 are added and omitted as necessary.

前記合計出力計算装置５は、前記計測用の自然エネルギ−利用発電装置３による発電量と前記付属計測装置４による計測結果とに基づき、前記給電用の自然エネルギ−利用発電装置６ａ〜６ｎの合計発電量を推定計算する装置である。   The total output calculation device 5 is based on the amount of power generated by the measurement-use natural energy-use power generation device 3 and the measurement result of the attached measurement device 4, and adds up the power supply-use natural energy-use power generation devices 6a to 6n. It is a device that estimates and calculates the amount of power generation.

前記給電用の自然エネルギ−利用発電装置６ａ〜６ｎは、各々前記電力系統１の同一或は異なる地点に接続され、各々の発電出力は当該電力系統１に供給される。   The natural energy-use power generation devices 6 a to 6 n for feeding are connected to the same or different points of the power system 1, and each power generation output is supplied to the power system 1.

また、前述の自然エネルギ−利用発電装置群６を構成する複数個の前記給電用の自然エネルギ−利用発電装置６ａ〜６ｎは、通常、それらが風力発電装置の場合であれ、太陽光発電装置の場合であれ、自然エネルギ−の共通環境下に、互いに間隔を隔てて設置される。即ち、通常、例えば風力発電装置の場合は、風向きや風量がほぼ同等になる環境となる比較的狭い範囲内のいわゆる自然エネルギ−の共通環境下に、前記自然エネルギ−利用発電装置群６を構成する複数の風力発電装置（前記給電用の自然エネルギ−利用発電装置６ａ〜６ｎ）が、互いに間隔を隔てて設置され、例えば太陽光発電装置の場合は、同一の日照条件が期待できるなど天候差が殆ど生じない比較的狭い範囲内のいわゆる自然エネルギ−の共通環境下に前記自然エネルギ−利用発電装置群６を構成する複数の太陽光発電装置（前記給電用の自然エネルギ−利用発電装置６ａ〜６ｎ）が、若干の或は可成りの間隔を隔てて設置される。換言すれば、各々の発電量がほぼ同じになる自然エネルギ−利用発電装置６ａ〜６ｎが、前記自然エネルギ−利用発電装置群６を構成する。   Further, the plurality of natural energy-use power generation devices 6a to 6n for power supply constituting the natural energy-use power generation device group 6 are usually solar power generation devices, even if they are wind power generation devices. In some cases, they are installed at a distance from each other in a common environment of natural energy. That is, for example, in the case of a wind power generator, the natural energy utilizing power generator group 6 is configured in a so-called natural energy common environment within a relatively narrow range where the wind direction and air volume are almost equal. A plurality of wind power generators (the natural energy-utilizing power generators 6a to 6n for power feeding) are installed at a distance from each other. For example, in the case of a solar power generator, the same sunshine conditions can be expected. A plurality of solar power generation devices (the power supply natural energy utilization power generation devices 6a to 6a) constituting the natural energy utilization power generation device group 6 in a so-called natural energy common environment within a relatively narrow range in which almost no generation occurs. 6n) are installed with some or considerable spacing. In other words, the natural energy utilizing power generation devices 6a to 6n having the same amount of power generation constitute the natural energy utilizing power generation device group 6.

また、前記監視装置２、前記計測用の自然エネルギ−利用発電装置３、及び前記付属計測装置４も、前記給電用の自然エネルギ−利用発電装置６ａ〜６ｎと共通の自然エネルギ−環境下に設置されている。   The monitoring device 2, the measurement-use natural energy-use power generation device 3, and the attached measurement device 4 are also installed in a natural energy environment common to the power-supply-use natural energy-use power generation devices 6a to 6n. Has been.

なお、自然エネルギ−の環境が異なりその為に発電量が異なる自然エネルギ−利用発電装置は、他の自然エネルギ−利用発電装置群を構成する。   In addition, the natural energy utilization electric power generation apparatus from which the environment of natural energy differs and the electric power generation amount differs for that comprises another natural energy utilization electric power generation apparatus group.

次に、この発明の実施の形態１の動作原理について説明する。   Next, the operation principle of the first embodiment of the present invention will be described.

いま、前記自然エネルギ−利用発電装置６ａ〜６ｎが前記電力系統１の同一あるいは異なった地点に接続され、また前記自然エネルギ−利用発電装置６ａ〜６ｎの合計発電量のデータを利用する前記監視装置２が前記自然エネルギ−利用発電装置６ａ〜６ｎと異なる地点あるいは前記自然エネルギ−利用発電装置６ａ〜６ｎのどれか１つと同一地点にあり、さらに、前記監視装置２と前記自然エネルギ−利用発電装置６ａ〜６ｎとはお互いに同一の日照条件が期待できる程度の距離に設置されているとする。   Now, the natural energy-utilizing power generation devices 6a to 6n are connected to the same or different points of the power system 1, and the monitoring device uses data of the total power generation amount of the natural energy-utilizing power generation devices 6a to 6n. 2 is at a point different from the natural energy-utilizing power generation devices 6a-6n or at the same point as any one of the natural energy-utilizing power generation devices 6a-6n, and the monitoring device 2 and the natural energy-utilizing power generation device It is assumed that 6a to 6n are installed at such a distance that the same sunshine conditions can be expected.

ここで、特許文献１に記載されている自然エネルギ−利用発電監視方式では、前述のように、給電用の自然エネルギ−利用発電装置６ａ〜６ｎの合計発電量を求めるためには、給電用の自然エネルギ−利用発電装置６ａ〜６ｎの個々の発電量を計測し、そのデータを監視装置２まで伝送してデータを合算する必要があり、そのため給電用の自然エネルギ−利用発電装置６ａ〜６ｎの個々の発電量を計測する装置、計測した個々の発電量の各デ−タを送信する装置、および計測した個々の発電量の各デ−タを監視装置２まで伝送する接続ケ−ブルなどの伝送媒体が、給電用の各自然エネルギ−利用発電装置６ａ〜６ｎ毎に必要になり、また、監視装置２側には伝送された個々の発電量を合算する装置が必要になる。   Here, in the natural energy utilization power generation monitoring method described in Patent Document 1, as described above, in order to obtain the total power generation amount of the natural energy utilization power generation apparatuses 6a to 6n for power supply, It is necessary to measure the individual power generation amounts of the natural energy-use power generation devices 6a to 6n, transmit the data to the monitoring device 2, and add the data. Therefore, the power generation of the natural energy-use power generation devices 6a to 6n is necessary. A device for measuring individual power generation amount, a device for transmitting each data of the measured power generation amount, a connection cable for transmitting each data of the measured power generation amount to the monitoring device 2, etc. A transmission medium is required for each of the natural energy-utilizing power generation devices 6a to 6n for power supply, and a device for adding the individual power generation amounts transmitted is required on the monitoring device 2 side.

そこで、この発明の実施の形態１では、監視装置２の付近に、計測用の風力発電装置や計測用太陽光発電装置などの前述の計測用の自然エネルギ−利用発電装置３と前述の付属計測装置４とを設け、これら計測用の自然エネルギ−利用発電装置３および付属計測装置４による測定値を用いて、給電用の自然エネルギ−利用発電装置６ａ〜６ｎの合計発電量を推定演算する。   Therefore, in the first embodiment of the present invention, the measurement-use natural energy-use power generation device 3 such as a measurement wind power generation device or a measurement solar power generation device and the above-described attached measurement are provided in the vicinity of the monitoring device 2. An apparatus 4 is provided, and the total power generation amount of the natural energy-use power generation devices 6a to 6n for power supply is estimated and calculated using the measured values of the measurement-use natural energy-use power generation device 3 and the attached measurement device 4.

このように、計測用の自然エネルギ−利用発電装置３および付属計測装置４による測定値を用いて給電用の自然エネルギ−利用発電装置６ａ〜６ｎの合計発電量を推定演算するのは、自然エネルギ−利用発電の場合は、自然エネルギ−の共通環境下となる比較的狭い範囲内に給電用の自然エネルギ−利用発電装置６ａ〜６ｎが設置される関係上、給電用の自然エネルギ−利用発電装置６ａ〜６ｎの個々の発電量は略同等であり、しかも計測用の自然エネルギ−利用発電装置３および付属計測装置４を、前記給電用の自然エネルギ−利用発電装置６ａ〜６ｎが設置されている自然エネルギ−環境と共通の環境下に設置することにより、計測用の自然エネルギ−利用発電装置３の発電量KW2と、給電用の自然エネルギ−利用発電装置６ａ〜６ｎの合計発電量KW1とは、線形比例の関係にあると考えられるからである。 As described above, the calculation of the total power generation amount of the power supply natural energy utilization power generation devices 6a to 6n using the measurement values of the measurement natural energy utilization power generation device 3 and the attached measurement device 4 is natural energy. -In the case of utilization power generation, the natural energy utilization power generation devices 6a to 6n for power supply are installed in a relatively narrow range under a common environment of natural energy. The individual power generation amounts of 6a to 6n are substantially the same, and the natural energy utilization power generation device 3 and the auxiliary measurement device 4 for measurement are installed in the natural energy utilization power generation devices 6a to 6n for feeding. by installing under common environmental and environment, natural energy for measurement - - natural energy and power generation amount KW2 utilization power generating apparatus 3, the natural energy power supply - if the available power generator 6a~6n The power generation amount KW1, it is considered to be in a linear proportional relationship.

つまり、給電用の自然エネルギ−利用発電装置６ａ〜６ｎの実際の合計発電容量をKVA1、計測用の自然エネルギ−利用発電装置３の発電容量をKVA2、給電用の自然エネルギ−利用発電装置６ａ〜６ｎの合計発電量をKW1、計測用の自然エネルギ−利用発電装置３の発電量をKW2とすると、以下の比例関係（式１）が成り立つ。   That is, the actual total power generation capacity of the natural energy utilization power generation apparatuses 6a to 6n for power supply is KVA1, the power generation capacity of the measurement natural energy utilization power generation apparatus 3 is KVA2, and the natural energy utilization power generation apparatus 6a to 6 If the total power generation amount of 6n is KW1, and the power generation amount of the measurement natural energy utilizing power generation device 3 is KW2, the following proportional relationship (Formula 1) is established.

Figure 0004540423
この式１に示す比例関係から、前記給電用の自然エネルギ−利用発電装置６ａ〜６ｎの合計発電容量KVA1の推定値は、以下の式２で計算できる。
Figure 0004540423
Figure 0004540423
 From the proportional relationship shown in Equation 1, the estimated value of the total power generation capacity KVA1 of the natural energy-use power generation devices 6a to 6n for feeding can be calculated by the following Equation 2.
Figure 0004540423

この発明の実施の形態１では、前記式２に対し前記付属計測装置４の計測データを用いて精度の向上を図る。精度向上は、前記計測用の自然エネルギ−利用発電装置３の計測値に無関係に設定される固定調整値LSと、前記計測用の自然エネルギ−利用発電装置３の計測値に比例して設定される比例調整値LPを用いる。以下に精度の向上も含めた自然エネルギ−利用発電装置群６の合計発電量KW1の推定計算値KW1esの計算方法を記す。

Figure 0004540423
In Embodiment 1 of the present invention, the accuracy is improved by using the measurement data of the attached measuring device 4 with respect to the equation 2. The accuracy improvement is set in proportion to the fixed adjustment value LS that is set regardless of the measurement value of the measurement-use natural energy-use power generation device 3 and the measurement value of the measurement-use natural energy-use power generation device 3. The proportional adjustment value LP is used. The calculation method of the estimated calculation value KW1es of the total power generation amount KW1 of the natural energy utilizing power generation device group 6 including the improvement of accuracy will be described below.
Figure 0004540423

ここで、固定調整値LSと比例調整値LPは、前記付属計測装置４で計測した複数の前記計測データと前記計測用の自然エネルギ−利用発電装置３の発電量のデ−タの何れか一方あるいは両方を入力とする任意の近似関数あるいは対応表で設定される。前記付属計測装置４は、固定調整値LSと比例調整値LPの作成に必要な複数の計測データ群、例えば前記計測用の自然エネルギ−利用発電装置３自体の温度或はその近傍の温度（或は気温）や風速、時刻等を取得する。例えば前記給電用の自然エネルギ−利用発電装置６ａ〜６ｎが太陽光発電装置の場合は、前記計測用の自然エネルギ−利用発電装置３の温度あるいは近傍気温と時刻の２つの計測データを用いて、デ−タベ−スに基づき固定調整値LSと比例調整値LPを作成する場合、固定調整値LSと比例調整値LPはそれぞれ、入力が２つの近似関数あるいは、２次元の対応表で構成される。例えば時刻と温度（気）の２次元の対応表を使用する場合は図３に示すごときデ−タベ−ス構成となる。図３において、例えば、前記計測時刻がＰ１以上、Ｐ２未満の時、かつ、前記計測温度がｔ２以上、ｔ３未満の時には、前記式３の演算時に、ＬＳ＝Ａ３２、ＬＰ＝Ｂ３２の値が用いられる。   Here, the fixed adjustment value LS and the proportional adjustment value LP are either one of the plurality of measurement data measured by the attached measurement device 4 and the amount of power generated by the measurement-use natural energy power generation device 3. Alternatively, it is set by an arbitrary approximation function or a correspondence table having both inputs. The attached measuring device 4 has a plurality of measurement data groups necessary for creating the fixed adjustment value LS and the proportional adjustment value LP, for example, the temperature of the measurement-use natural energy power generation device 3 itself or a temperature in the vicinity thereof (or Temperature), wind speed, and time. For example, in the case where the natural energy-use power generation devices 6a to 6n for feeding are solar power generation devices, the temperature of the natural energy-use power generation device 3 for measurement or the ambient temperature and time are used as two measurement data. When the fixed adjustment value LS and the proportional adjustment value LP are created based on the database, each of the fixed adjustment value LS and the proportional adjustment value LP is composed of two approximate functions or a two-dimensional correspondence table. . For example, when a two-dimensional correspondence table of time and temperature (air) is used, the database configuration is as shown in FIG. In FIG. 3, for example, when the measurement time is P1 or more and less than P2, and the measurement temperature is t2 or more and less than t3, the values of LS = A32 and LP = B32 are used in the calculation of Equation 3. It is done.

次に、動作フロ−チャ−トである図２により、この発明の実施の形態１の動作を説明する。   Next, the operation of the first embodiment of the present invention will be described with reference to FIG. 2 which is an operation flowchart.

処理を開始すると、先ず、前記合計出力計算装置５で前記式３を演算できるように、前記合計出力計算装置５に、前記給電用の自然エネルギ−利用発電装置６ａ〜６ｎの発電容量の合計値KVA1を設定する（ステップＳＴ２１）。   When the processing is started, first, the total output calculation device 5 is supplied with the total power generation capacity of the natural energy-utilizing power generation devices 6a to 6n for feeding so that the total output calculation device 5 can calculate the expression (3). KVA1 is set (step ST21).

次に、前記合計出力計算装置５で前記式３を演算できるように、前記合計出力計算装置５に、前記計測用の自然エネルギ−利用発電装置３の発電容量KVA2を設定する（ステップＳＴ２２）。   Next, the power generation capacity KVA2 of the measurement-use natural energy utilization power generation device 3 is set in the total power calculation device 5 so that the total power calculation device 5 can calculate the expression 3 (step ST22).

前記ステップＳＴ２１、ステップＳＴ２２での処理が終了すると、前記給電用の自然エネルギ−利用発電装置６ａ〜６ｎの合計発電量の推定計算を行う演算サイクル（ステップＳＴ２３〜ステップＳＴ２７）が開始される。   When the processes in step ST21 and step ST22 are completed, a calculation cycle (step ST23 to step ST27) for performing an estimation calculation of the total power generation amount of the natural energy-use power generation devices 6a to 6n for feeding is started.

演算サイクルでは、まず、前記合計出力計算装置５が、前記計測用の自然エネルギ−利用発電装置３から、その発電量KW2を取り込む（ステップＳＴ２３）。   In the calculation cycle, first, the total output calculation device 5 takes in the power generation amount KW2 from the natural energy utilization power generation device 3 for measurement (step ST23).

次に、前記合計出力計算装置５が、前記付属計測装置４から、計算精度向上に使用する観測データMDFを取り込む（ステップＳＴ２４）。   Next, the total output calculation device 5 takes in the observation data MDF used to improve calculation accuracy from the attached measurement device 4 (step ST24).

次に、前記合計出力計算装置５が、前記ステップＳＴ２４で取り込んだデータMDFを基に、計算精度向上に使用する固定調整値LSと比例調整値LPを作成する（ステップＳＴ２５）。   Next, the total output calculation device 5 creates a fixed adjustment value LS and a proportional adjustment value LP that are used to improve calculation accuracy based on the data MDF fetched in step ST24 (step ST25).

次に、前記合計出力計算装置５では、前記給電用の自然エネルギ−利用発電装置６ａ〜６ｎの合計発電量KW1の推定値KW1esを計算する（ステップＳＴ２６）。   Next, the total output calculation device 5 calculates an estimated value KW1es of the total power generation amount KW1 of the natural energy-use power generation devices 6a to 6n for feeding (step ST26).

次に、前記ステップＳＴ２６で前記給電用の自然エネルギ−利用発電装置６ａ〜６ｎの合計発電量KW1の推定値KW1esが計算されると、当該推定値KW1esを前記監視装置２に送信する（ステップＳＴ２７）。前記監視装置２は、推定値KW1esを受信すると、当該推定値KW1esを表示装置（図示省略）に表示し、また、前記逆潮流が発生する状態など制御が必要な場合は警報を発生し、前記逆潮流の防止または軽減の制御指令など、前記系統制御機器への制御指令を発生する。   Next, when the estimated value KW1es of the total power generation amount KW1 of the natural energy-use power generation devices 6a to 6n for feeding is calculated in step ST26, the estimated value KW1es is transmitted to the monitoring device 2 (step ST27). ). When the monitoring device 2 receives the estimated value KW1es, the monitoring device 2 displays the estimated value KW1es on a display device (not shown), and generates an alarm when control such as a state where the reverse power flow occurs is required. A control command to the system control device, such as a control command for preventing or reducing reverse power flow, is generated.

なお本装置を停止する場合はステップＳＴ２８にて装置を停止する。   When stopping the apparatus, the apparatus is stopped in step ST28.

この発明の実施の形態１は、前述のように、前記給電用の自然エネルギ−利用発電装置６ａ〜６ｎの個々の発電量を計測せずに、前記計測用の自然エネルギ−利用発電装置３と前記付属計測装置４とを用いて前記自然エネルギ−利用発電装置群６の合計発電量KW1を推定計算する構成としたので、計測、送信、伝送の装置コストを低減することことができる。   As described above, the first embodiment of the present invention does not measure the individual power generation amounts of the power-supplying natural energy-use power generation devices 6a to 6n, and the measurement-use natural energy-use power generation device 3 and Since the total power generation amount KW1 of the natural energy utilization power generation device group 6 is estimated and calculated using the attached measurement device 4, the device costs for measurement, transmission, and transmission can be reduced.

実施の形態２．
以下この発明の実施の形態２を図４および図５により説明する。図４は自然エネルギ−利用発電監視方式を実施するシステム構成の一例を示す図、図５は図４のシステムの動作フロ−を示す図である。なお、図４および図５において、図１および図２と同一または相当部分には同一符号を付してある。また、以下のこの発明の実施の形態２の説明は、この発明の実施の形態２の特徴点を主体的に説明し、前述のこの発明の実施の形態１と同一または相当する部分についての説明は割愛する。 Embodiment 2. FIG.
A second embodiment of the present invention will be described below with reference to FIGS. FIG. 4 is a diagram showing an example of a system configuration for implementing the natural energy-based power generation monitoring method, and FIG. 5 is a diagram showing an operation flow of the system of FIG. 4 and 5, the same or corresponding parts as those in FIGS. 1 and 2 are denoted by the same reference numerals. Further, the following description of the second embodiment of the present invention mainly explains the characteristic points of the second embodiment of the present invention, and description of the same or corresponding parts as those of the above-described first embodiment of the present invention. Will be omitted.

この発明の実施の形態２は、図４に示すように、複数の自然エネルギ−利用発電装置群６Ａ〜６Ｎを対象にして、計測、送信、伝送の装置コストを低減する場合の事例である。また、図４および図５において、自然エネルギ−利用発電装置群６Ａに対応する計測用の自然エネルギ−利用発電装置３、付属計測装置４、合計出力計算装置５、給電用の自然エネルギ−利用発電装置６ａ〜６ｎの何れの符号にも、対応の群を表す符合Ａを付加し、自然エネルギ−利用発電装置群６Ｎに対応する計測用の自然エネルギ−利用発電装置３、付属計測装置４、合計出力計算装置５、給電用の自然エネルギ−利用発電装置６ａ〜６ｎの何れの符号にも、対応の群を表す符合Ｎを付加してある。なお、図４において、自然エネルギ−利用発電装置群６Ｂ、自然エネルギ−利用発電装置群６Ｃ、・・・自然エネルギ−利用発電装置群６Ｎ−１、及びそれらに対応する合計出力計算装置５Ｂ〜５Ｎ−１は図示省略してある。   As shown in FIG. 4, Embodiment 2 of the present invention is an example in the case of reducing the measurement, transmission, and transmission device costs for a plurality of natural energy-utilizing power generation device groups 6A to 6N. 4 and 5, the measurement-use natural energy-use power generation device 3, the attached measurement device 4, the total output calculation device 5, and the power supply-use natural energy-use power generation corresponding to the natural energy-use power generation device group 6 </ b> A. A sign A representing the corresponding group is added to any of the devices 6a to 6n, and the measurement-use natural energy-use power generation device 3 and the attached measurement device 4, corresponding to the natural energy-use power generation device group 6N, are combined. A sign N representing a corresponding group is added to any sign of the output calculation device 5 and the natural energy-use power generation devices 6a to 6n for feeding. In FIG. 4, a natural energy-utilizing power generation device group 6B, a natural energy-utilizing power generation device group 6C,..., A natural energy-utilizing power generation device group 6N-1, and their corresponding total output calculation devices 5B to 5N. -1 is not shown.

前述のこの発明の実施例１では、計測用の自然エネルギ−利用発電装置３と給電用の自然エネルギ−利用発電装置６ａ〜６ｎとは、お互いに同一の日照条件が期待できる程度の距離に設置されている等の共通の自然エネルギ−環境下にある場合について記載した。この発明の実施の形態２では、同一発電装置群内の計測用の自然エネルギ−利用発電装置３と給電用の自然エネルギ−利用発電装置６ａ〜６ｎとは、お互いに同一の日照条件が期待できる程度の距離に設置されている等の共通の自然エネルギ−環境下にあるが、異なる自然エネルギ−利用発電装置群６Ａ〜６Ｎの相互間では、相互間の距離が可成り離れていて、同一の日照条件が期待できず共通の自然エネルギ−環境下にはない場合の事例を例示してある。なお、自然エネルギ−利用発電装置群６Ａ〜６Ｎは、共通の電力系統１に接続され、各々の発電出力は当該共通の電力系統１に供給される。   In the first embodiment of the present invention described above, the measurement-use natural energy-use power generation device 3 and the power supply-use natural energy-use power generation devices 6a to 6n are installed at such a distance that the same sunshine conditions can be expected from each other. The case of being in a common natural energy environment such as being described. In the second embodiment of the present invention, the measurement-use natural energy-use power generation device 3 and the power supply-use natural energy-use power generation devices 6a to 6n in the same power generation device group can expect the same sunshine conditions. Although they are in a common natural energy environment such as being installed at a certain distance, the distance between the different natural energy-utilizing power generation device groups 6A to 6N is considerably different, and the same A case where the sunshine condition cannot be expected and the environment is not in a common natural energy environment is illustrated. The natural energy utilization power generation device groups 6 </ b> A to 6 </ b> N are connected to a common power system 1, and each power generation output is supplied to the common power system 1.

次に、この発明の実施の形態２の動作概要を説明する。   Next, the operation outline of the second embodiment of the present invention will be described.

まず、自然エネルギ−利用発電装置群６Ａについて、前述のこの発明の実施の形態１と同様に、給電用の自然エネルギ−利用発電装置６Ａａ〜６Ａｎの合計発電量を、計測用の自然エネルギ−利用発電装置３Ａ、付属計測装置４Ａ、合計出力計算装置５Ａを用いて推定計算する。同様に、他の自然エネルギ−利用発電装置群６Ｂ（図示省略）〜６Ｎ−１（図示省略），６Ｎについても、各々の給電用の自然エネルギ−利用発電装置の合計発電量を、推定計算する。更に、監視装置２により、「前記合計出力計算装置５Ａの推定計算値(KW1esa)」〜「前記合計出力計算装置５Ｎの推定計算値(KW1esn)」を合算し、「前記給電用の自然エネルギ−利用発電装置６Ａａ〜６Ａｎ」〜「前記給電用の自然エネルギ−利用発電装置６Ｎａ〜６Ｎｎ」の合計推定発電量(KW1es)を算出する。   First, with respect to the natural energy-use power generation device group 6A, as in the first embodiment of the present invention described above, the total power generation amount of the power supply natural energy-use power generation devices 6Aa to 6An is measured using the natural energy for measurement. Estimation calculation is performed using the power generation device 3A, the attached measurement device 4A, and the total output calculation device 5A. Similarly, for the other natural energy-utilizing power generation device groups 6B (not shown) to 6N-1 (not shown), 6N, the total power generation amount of each of the natural energy-utilizing power generation devices for power supply is estimated and calculated. . Furthermore, the monitoring device 2 adds together the “estimated calculated value (KW1esa)” of the total output calculating device 5A to the “estimated calculated value (KW1esn) of the total output calculating device 5N” to obtain “natural energy for power supply”. The total estimated power generation amount (KW1es) of the power generation devices 6Aa to 6An ”to“ the power supply natural energy power generation devices 6Na to 6Nn ”is calculated.

次に、動作フロ−チャ−トである図５により、この発明の実施の形態２の動作を詳細に説明する。   Next, the operation of the second embodiment of the present invention will be described in detail with reference to FIG. 5 which is an operation flowchart.

処理を開始すると、先ず、前記合計出力計算装置５Ａで前記式３を演算できるように、前記合計出力計算装置５Ａに、前記給電用の自然エネルギ−利用発電装置６Ａａ〜６Ａｎの発電容量の合計値KVA1aを設定する（ステップＳＴ３０１）。   When the process is started, first, the total output calculation device 5A is supplied with the total power generation capacity of the natural energy utilization power generation devices 6Aa to 6An so that the total output calculation device 5A can calculate the expression (3). KVA1a is set (step ST301).

次に、前記合計出力計算装置５Ａで前記式３を演算できるように、前記合計出力計算装置５Ａに、前記計測用の自然エネルギ−利用発電装置３Ａの発電容量KVA2aを設定する（ステップＳＴ３０２）。   Next, the power generation capacity KVA2a of the measurement-use natural energy power generation device 3A is set in the total power calculation device 5A so that the total power calculation device 5A can calculate the equation 3 (step ST302).

同様に、合計出力計算装置５Ｂ〜５Ｎ−１（図示省略）で前記式３を演算できるように、各自然エネルギ−利用発電装置群６Ｂ〜６Ｎ−１（図示省略）の各々においても、給電用の自然エネルギ−利用発電装置６ａ〜６ｎの発電容量の合計値KVA1および計測用の自然エネルギ−利用発電装置３Ａの発電容量KVA2を設定する。   Similarly, each of the natural energy utilizing power generation device groups 6B to 6N-1 (not shown) can supply power so that the total power calculation devices 5B to 5N-1 (not shown) can calculate the expression 3. The total value KVA1 of the power generation capacity of the natural energy utilization power generation apparatuses 6a to 6n and the power generation capacity KVA2 of the measurement natural energy utilization power generation apparatus 3A are set.

更に、前記合計出力計算装置５Ｎでも前記式３を演算できるように、前記合計出力計算装置５Ｎに、前記給電用の自然エネルギ−利用発電装置６Ｎａ〜６Ｎｎの発電容量の合計値KVA1nを設定し（ステップＳＴ３０３）、また、前記合計出力計算装置５Ｎで前記式３を演算できるように、前記合計出力計算装置５Ｎに、前記計測用の自然エネルギ−利用発電装置３Ｎの発電容量KVA2nを設定する（ステップＳＴ３０４）。   Further, a total value KVA1n of the power generation capacities of the natural energy-use power generation devices 6Na to 6Nn for feeding is set in the total power calculation device 5N so that the total power calculation device 5N can also calculate the equation (3) ( In step ST303), the power generation capacity KVA2n of the measurement-use natural energy-use power generation device 3N is set in the total power calculation device 5N so that the total power calculation device 5N can calculate the expression 3 (step ST303). ST304).

前記ステップＳＴ３０１〜ステップＳＴ３０４での処理が終了すると、前記「給電用の自然エネルギ−利用発電装置６Ａａ〜６Ａｎ」〜前記「給電用の自然エネルギ−利用発電装置６Ｎａ〜６Ｎｎ」の各々の合計発電量の推定計算を行う演算サイクル（ステップＳＴ３０５〜ステップＳＴ３１３）が開始される。   When the processes in steps ST301 to ST304 are completed, the total power generation amount of each of the “natural power-use power generation devices 6Aa to 6An” for power supply to the “natural power-use power generation devices 6Na to 6Nn for power supply” is completed. The calculation cycle (step ST305 to step ST313) for performing the estimation calculation is started.

前記演算サイクル（ステップＳＴ３０５〜ステップＳＴ３１３）では、まず、前記給電用の自然エネルギ−利用発電装置６Ａａ〜６Ａｎの合計発電量の推定値KW1esaを計算する（ステップＳＴ３０５〜ステップＳＴ３０８）。   In the calculation cycle (steps ST305 to ST313), first, an estimated value KW1esa of the total power generation amount of the natural energy utilization power generation devices 6Aa to 6An for feeding is calculated (steps ST305 to ST308).

この演算サイクルでは、まず、前記ステップＳＴ３０５において、前記合計出力計算装置５Ａが、計測用の自然エネルギ−利用発電装置３Ａから、その発電量KW2a取り込む。   In this calculation cycle, first, in step ST305, the total output calculation device 5A takes in the power generation amount KW2a from the natural energy-use power generation device 3A for measurement.

次に、前記ステップＳＴ３０６において、前記合計出力計算装置５Ａが、前記付属計測装置４Ａから推定精度向上のために使用する観測デ−タMDFaを取り込む。   Next, in step ST306, the total output calculation device 5A takes in the observation data MDFa used for improving the estimation accuracy from the attached measurement device 4A.

次に、前記ステップＳＴ３０７において、前記合計出力計算装置５Ａが、前記ステップＳＴ３０６で取り込んだデータMDFaを基に、計算精度向上に使用する固定調整値LSaと比例調整値LPaとを作成する。   Next, in step ST307, the total output calculation device 5A creates a fixed adjustment value LSa and a proportional adjustment value LPa that are used to improve calculation accuracy based on the data MDFa taken in in step ST306.

次に、前記ステップＳＴ３０８において、前記合計出力計算装置５Ａが、前記給電用の自然エネルギ−利用発電装置６Ａａ〜６Ａｎの合計発電量KW1aの推定計算値KW1esaを計算する。   Next, in step ST308, the total output calculation device 5A calculates an estimated calculation value KW1esa of the total power generation amount KW1a of the natural energy utilization power generation devices 6Aa to 6An for feeding.

前記給電用の自然エネルギ−利用発電装置６Ａａ〜６Ａｎの合計発電量の推定計算が終了すると、次に前記給電用の自然エネルギ−利用発電装置６Ｂａ〜６Ｂｎ（図示省略）の合計発電量の推定値KW1esbを、前述のステップＳＴ３０５〜ステップＳＴ３０８での処理と同様な処理を行うことによって計算する。同様に、給電用の自然エネルギ−利用発電装置６Ｃａ〜６Ｃｎ（図示省略）、６Ｄａ〜６Ｄｎ（図示省略）、６Ｅａ〜６Ｅｎ（図示省略）、・・・と処理を進め、最後に給電用の自然エネルギ−利用発電装置６Ｎａ〜６Ｎｎについて同様の処理（ステップＳＴ３０９〜ステップＳＴ３１２）を行う。   When the estimation calculation of the total power generation amount of the natural energy-use power generation devices 6Aa to 6An for feeding is completed, the estimated value of the total power generation amount of the natural energy-use power generation devices 6Ba to 6Bn (not shown) for power supply is then completed. KW1esb is calculated by performing processing similar to the processing in steps ST305 to ST308 described above. Similarly, the natural energy utilization power generation devices 6Ca to 6Cn (not shown) for power feeding, 6Da to 6Dn (not shown), 6Ea to 6En (not shown),... The same processing (step ST309 to step ST312) is performed for the energy-utilizing power generation devices 6Na to 6Nn.

前記ステップＳＴ３０５〜ＳＴ３１２により、各自然エネルギ−利用発電装置群６Ａ〜６Ｎの各合計発電量の推定計算処理が終了すると、前記各自然エネルギ−利用発電装置群６Ａ〜６Ｎの各合計発電量の推定値KW1esa〜KW1esnを、前記監視装置２に送信する（ステップＳＴ３１３）。前記監視装置２は、前記合計発電量の推定値KW1esa〜KW1esnを受信すると、これら推定値KW1esa〜KW1esnを合計して、前記自然エネルギ−利用発電装置群６Ａ〜６Ｎの各合計発電量の合計発電量として、表示装置（図示省略）に表示し、また、前記逆潮流が発生する状態など制御が必要な場合は警報を発生し、前記逆潮流の防止または軽減の制御指令など、前記系統制御機器への制御指令を発生するなどに利用する。   When the estimation calculation processing of each total power generation amount of each of the natural energy-use power generation device groups 6A to 6N is completed in steps ST305 to ST312, estimation of each total power generation amount of each of the natural energy-use power generation device groups 6A to 6N. Values KW1esa to KW1esn are transmitted to the monitoring device 2 (step ST313). When the monitoring device 2 receives the estimated values KW1esa to KW1esn of the total power generation amount, the monitoring device 2 sums the estimated values KW1esa to KW1esn to generate the total power generation of the total power generation amounts of the natural energy-based power generation device groups 6A to 6N. The system control device displays the amount as a quantity on a display device (not shown), generates an alarm when control such as a state where the reverse power flow occurs is required, and controls the prevention or reduction of the reverse power flow Used to generate control commands for

なお本装置を停止する場合はステップＳＴ３１４にて装置を停止する。   In addition, when stopping this apparatus, an apparatus is stopped in step ST314.

合計出力を得ようとする前記自然エネルギ−利用発電装置群６Ａ〜６Ｎが分離して位置しておりその相互間の距離が離れているために自然エネルギ−利用発電装置群６Ａ〜６Ｎの全体に亘って同一の日照などの同一自然エネルギ−環境を期待することが難しく前述のこの発明の実施の形態１では前記自然エネルギ−利用発電装置群６Ａ〜６Ｎの合計推定発電量を正確に得ることができない場合でも、この発明の実施の形態２によれば、前記自然エネルギ−利用の発電装置群６Ａ〜６Ｎのそれぞれに前記計測用の自然エネルギ−利用発電装置３と前記付属計測装置４とを設けて、前記自然エネルギ−利用の発電装置群６Ａ〜６Ｎの各合計推定発電量を個々に計算する構成としたので、前記自然エネルギ−利用の発電装置群６Ａ〜６Ｎの各合計推定発電量を合計した合計推定発電量を正確に得ることができる利点がある。   The natural energy utilizing power generation device groups 6A to 6N that are to obtain the total output are located separately and the distance between them is increased, so that the natural energy utilizing power generation device groups 6A to 6N are entirely present. It is difficult to expect the same natural energy environment such as the same sunlight, and in the first embodiment of the present invention described above, it is possible to accurately obtain the total estimated power generation amount of the natural energy utilizing power generation device groups 6A to 6N. Even if this is not possible, according to the second embodiment of the present invention, each of the natural energy-use power generation device groups 6A to 6N is provided with the measurement-use natural energy-use power generation device 3 and the attached measurement device 4. Since the total estimated power generation amount of each of the natural energy-based power generation device groups 6A to 6N is calculated individually, each total estimation of the natural energy-based power generation device groups 6A to 6N is calculated. The total estimated power generation amount which is the sum of power generation amount can be advantageously obtained accurately.

実施の形態３．
以下この発明の実施の形態３を図６により説明する。図６は自然エネルギ−利用発電監視方式を実施するシステム構成の一例を示す図である。なお、図６において、図１〜図５と同一または相当部分には同一符号を付してある。また、以下のこの発明の実施の形態３の説明は、この発明の実施の形態３の特徴点を主体的に説明し、前述のこの発明の実施の形態１と同一または相当する部分についての説明は割愛する。 Embodiment 3 FIG.
A third embodiment of the present invention will be described below with reference to FIG. FIG. 6 is a diagram illustrating an example of a system configuration that implements a natural energy-based power generation monitoring system. In FIG. 6, the same or corresponding parts as those in FIGS. Further, the following description of the third embodiment of the present invention mainly describes the characteristic points of the third embodiment of the present invention, and description of the same or corresponding parts as those of the above-described first embodiment of the present invention. Will be omitted.

この発明の実施の形態３は、前述のこの発明の実施の形態１における計測専用の自然エネルギ−利用発電装置３を設けずに、給電用の自然エネルギ−利用発電装置６ａ〜６ｎのうちの何れか監視装置２に近い自然エネルギ−利用発電装置を、給電用兼計測用の自然エネルギ−利用発電装置６ａ（３）とし、その発電出力は前記電力系統１に供給し、また、その発電量の計測出力を利用して、前述のこの発明の実施の形態１と同様に、給電用の自然エネルギ−利用発電装置６ａ（３），６ｂ〜６ｎの合計推定発電量を得るものであり、計測専用の自然エネルギ−利用発電装置３を設けなくて済む分、装置コストは低減できるが、前記監視装置２との通信距離は前述のこの発明の実施の形態１の方が短くなる場合が多い。   In the third embodiment of the present invention, any of the natural energy utilizing power generation devices 6a to 6n for feeding is provided without providing the natural energy utilizing power generating device 3 dedicated to the measurement in the first embodiment of the present invention. The natural energy utilization power generation device close to the monitoring device 2 is a power supply and measurement natural energy utilization power generation device 6a (3), the power generation output is supplied to the power system 1, and the amount of power generation The measurement output is used to obtain the total estimated power generation amount of the natural energy-use power generation devices 6a (3), 6b to 6n for power feeding, as in the first embodiment of the present invention described above. The cost of the apparatus can be reduced by the amount of the natural energy utilization power generation apparatus 3 that is not provided, but the communication distance with the monitoring apparatus 2 is often shorter in the first embodiment of the present invention described above.

実施の形態４．
以下この発明の実施の形態４を図７により説明する。図７は自然エネルギ−利用発電監視方式を実施するシステム構成の一例を示す図である。なお、図７において、図１〜図６と同一または相当部分には同一符号を付してある。また、以下のこの発明の実施の形態４の説明は、この発明の実施の形態４の特徴点を主体的に説明し、前述のこの発明の実施の形態１〜３と同一または相当する部分についての説明は割愛する。 Embodiment 4 FIG.
A fourth embodiment of the present invention will be described below with reference to FIG. FIG. 7 is a diagram illustrating an example of a system configuration that implements a natural energy-based power generation monitoring system. In FIG. 7, the same or corresponding parts as those in FIGS. Further, the following description of the fourth embodiment of the present invention mainly describes the features of the fourth embodiment of the present invention, and the same or corresponding parts as those of the first to third embodiments of the present invention described above. I will omit the explanation.

この発明の実施の形態４は、前述のこの発明の実施の形態２における計測専用の自然エネルギ−利用発電装置３Ａ〜３Ｎを設けずに、自然エネルギ−利用発電装置群６Ａ〜６Ｎの各々において前記監視装置２に近い自然エネルギ−利用発電装置を、給電用兼計測用の自然エネルギ−利用発電装置６Ａａ（３）・・・及び給電用兼計測用の自然エネルギ−利用発電装置６Ｎａ（３）とし、その発電出力は前記電力系統１に供給し、また、の各発電量の計測出力を利用して、前述のこの発明の実施の形態２と同様に、前記自然エネルギ−利用発電装置群６Ａ〜６Ｎのそれぞれの合計推定発電量を得、更に、これら合計推定発電量を合算した合計推定発電量を得るものであり、計測専用の自然エネルギ−利用発電装置３Ａ〜３Ｎを設けなくて済む分、装置コストは低減できるが、前記監視装置２との通信距離は前述のこの発明の実施の形態２の方が短くなる場合が多い。   The fourth embodiment of the present invention does not include the measurement-specific natural energy-use power generation devices 3A to 3N in the second embodiment of the present invention, and each of the natural energy-use power generation device groups 6A to 6N has the above-described configuration. The natural energy utilization power generation device near the monitoring device 2 is a power supply and measurement natural energy utilization power generation device 6Aa (3)... And a power supply and measurement natural energy utilization power generation device 6Na (3). The power generation output is supplied to the power system 1, and the measurement output of each power generation amount is used, and the natural energy-utilizing power generation device groups 6A to 6A are used similarly to the second embodiment of the present invention described above. 6N is obtained for each total estimated power generation amount, and furthermore, a total estimated power generation amount obtained by adding these total estimated power generation amounts is obtained, and there is no need to provide natural energy-utilizing power generation devices 3A to 3N dedicated to measurement. Although the apparatus cost can be reduced, the communication distance between the monitoring device 2 is often towards the second embodiment of the present invention described above is shortened.

この発明の実施の形態１を示す図で、自然エネルギ−利用発電監視方式を実施するシステム構成の一例を示す図である。It is a figure which shows Embodiment 1 of this invention, and is a figure which shows an example of the system configuration which implements a natural energy utilization power generation monitoring system. この発明の実施の形態１を示す図で、図１のシステムの動作フロ−を示す図である。FIG. 2 is a diagram illustrating the first embodiment of the present invention, and is a diagram illustrating an operation flow of the system of FIG. 1. この発明の実施の形態１を示す図で、付属計測装置での計測値に基づく比例調整値のデ−タベ−スを示す図である。It is a figure which shows Embodiment 1 of this invention, and is a figure which shows the database of the proportional adjustment value based on the measured value in an attached measuring device. この発明の実施の形態２を示す図で、自然エネルギ−利用発電監視方式を実施するシステム構成の一例を示す図である。It is a figure which shows Embodiment 2 of this invention, and is a figure which shows an example of the system configuration which implements a natural energy utilization power generation monitoring system. この発明の実施の形態２を示す図で、図４のシステムの動作フロ−を示す図である。It is a figure which shows Embodiment 2 of this invention, and is a figure which shows the operation | movement flow of the system of FIG. この発明の実施の形態３を示す図で、自然エネルギ−利用発電監視方式を実施するシステム構成の一例を示す図である。It is a figure which shows Embodiment 3 of this invention, and is a figure which shows an example of the system configuration which implements a natural energy utilization power generation monitoring system. この発明の実施の形態４を示す図で、自然エネルギ−利用発電監視方式を実施するシステム構成の一例を示す図である。It is a figure which shows Embodiment 4 of this invention, and is a figure which shows an example of the system configuration which implements a natural energy utilization power generation monitoring system.

符号の説明Explanation of symbols

１ 電力系統、
２ 監視装置、
３ 計測用の自然エネルギ−利用発電装置、
３Ａ〜３Ｎ 計測用の自然エネルギ−利用発電装置、
４ 付属計測装置、
４Ａ〜４Ｎ 付属計測装置、
５ 合計出力計算装置、
５Ａ〜５Ｎ 合計出力計算装置、
６ 自然エネルギ−利用発電装置群、
６Ａ〜６Ｎ 自然エネルギ−利用発電装置群、
６ａ〜６ｎ 給電用の自然エネルギ−利用発電装置、
６ａ（３） 給電用兼計測用の自然エネルギ−利用発電装置、
６Ａａ（３） 給電用兼計測用の自然エネルギ−利用発電装置、
６Ｂａ（３） 給電用兼計測用の自然エネルギ−利用発電装置、
６Ａａ〜６Ａｎ 給電用の自然エネルギ−利用発電装置、
６Ｂａ〜６Ｂｎ 給電用の自然エネルギ−利用発電装置。 1 Power system,
2 monitoring devices,
3 Natural energy-based power generator for measurement,
3A-3N Natural energy utilization power generator for measurement,
4 attached measuring device,
4A-4N attached measuring device,
5 Total output calculation device,
5A-5N total output calculation device,
6 Natural energy-based power generation equipment group,
6A to 6N natural energy utilization power generation device group,
6a-6n Natural energy utilization power generation device for feeding,
6a (3) Natural energy utilization power generation device for feeding and measuring,
6Aa (3) Natural energy-use power generation device for power feeding and measurement,
6Ba (3) Power generation and measurement-use natural energy-use power generator,
6Aa-6An Natural energy utilization power generator for feeding,
6Ba-6Bn A natural energy utilization power generation device for power supply.

Claims (4)

間隔を隔てて複数台設置された給電用の自然エネルギ−利用発電装置からなる発電装置群、
前記給電用の各自然エネルギ−利用発電装置と共通の自然エネルギ−環境下に設置された計測用の自然エネルギ−利用発電装置、
前記計測用の自然エネルギ−利用発電装置の発電量から前記複数台の自然エネルギ−利用発電装置の各発電量の合計の発電量を、発電容量と発電量との関係式KVA1：KVA2≒KW1：KW2（但し、KVA1は前記複数台の自然エネルギ−利用発電装置の合計発電容量、KVA2は前記計測用の自然エネルギ−利用発電装置の発電容量、KW1は前記複数台の自然エネルギ−利用発電装置の合計発電量、KW2は前記計測用の自然エネルギ−利用発電装置の発電量）に基づいて前記発電装置群における前記複数台の自然エネルギ−利用発電装置の合計の発電量KW1を推定する合計出力計算装置、及び
前記合計出力計算装置の出力を受信する監視装置を備え、
前記合計出力計算装置が推定した前記複数台の自然エネルギ−利用発電装置の合計の発電量KW1に基づいて前記監視装置が監視動作する自然エネルギ−利用発電監視システム。 A group of power generators comprising a plurality of generators using natural energy for power supply installed at intervals ;
Each natural energy before Symbol feeding - common natural energy and use power generator - natural energy for measurement installed in an environment - utilizing power generation device,
The total power generation amount of each of the plurality of natural energy-use power generation devices from the power generation amount of the natural energy-use power generation device for measurement is expressed by a relational expression KVA1: KVA2≈KW1: KW2 (where KVA1 is the total power generation capacity of the plurality of natural energy utilizing power generation devices, KVA2 is the power generation capacity of the natural energy utilizing power generation device for measurement, and KW1 is the power generation capacity of the plurality of natural energy utilizing power generation devices. Total power generation, KW2 is a total output calculation for estimating the total power generation amount KW1 of the plurality of natural energy-use power generation devices in the power generation device group based on the measurement natural energy-use power generation device) Equipment, and
A monitoring device for receiving the output of the total output calculation device;
A natural energy-based power generation monitoring system in which the monitoring device performs a monitoring operation based on a total power generation amount KW1 of the plurality of natural energy-based power generation devices estimated by the total output calculation device . 間隔を隔てて複数台設置された給電用の自然エネルギ−利用発電装置からなる複数群の発電装置群、
前記各発電装置群内に設置され、対応する前記各発電装置群内の前記給電用の各自然エネルギ−利用発電装置と共通の自然エネルギ−環境下にある計測用の自然エネルギ−利用発電装置、
前記各発電装置群に設置され、対応する前記計測用の自然エネルギ−利用発電装置の発電量から、対応する前記複数台の自然エネルギ−利用発電装置の各発電量の合計の発電量を、発電容量と発電量との関係式KVA1：KVA2≒KW1：KW2（但し、KVA1は前記複数台の自然エネルギ−利用発電装置の合計発電容量、KVA2は前記計測用の自然エネルギ−利用発電装置の発電容量、KW1は前記複数台の自然エネルギ−利用発電装置の合計発電量、KW2は前記計測用の自然エネルギ−利用発電装置の発電量）に基づいて、対応する前記発電装置群における前記複数台の自然エネルギ−利用発電装置の合計の発電量KW1を推定する合計出力計算装置、及び
前記合計出力計算装置のそれぞれの出力を受信する監視装置を備え、
前記各合計出力計算装置が推定した前記複数台の自然エネルギ−利用発電装置の合計の発電量KW1に基づいて前記監視装置が監視動作する自然エネルギ−利用発電監視システム。 A plurality of groups of power generation devices composed of a plurality of power- supplying natural energy-use power generation devices installed at intervals ;
The installed in each power generation device groups, corresponding each natural energy for pre Symbol feed within each power device group - common natural energy and use power generator - natural energy for measurement in the environment - available power generator ,
The total power generation amount of each of the plurality of corresponding natural energy-use power generation devices is generated from the power generation amount of the corresponding measurement-use natural energy-use power generation device installed in each power generation device group. Relation between capacity and power generation amount KVA1: KVA2≈KW1: KW2 (where KVA1 is the total power generation capacity of the plurality of natural energy-based power generation apparatuses, and KVA2 is the power generation capacity of the natural energy-use power generation apparatus for measurement) , KW1 is a total power generation amount of the plurality of natural energy-utilizing power generation devices, and KW2 is a power generation amount of the natural energy-utilizing power generation device for measurement). A total output calculation device for estimating the total power generation amount KW1 of the energy-utilizing power generation device, and
A monitoring device for receiving the output of each of the total output calculation devices;
A natural energy-based power generation monitoring system in which the monitoring device performs a monitoring operation based on a total power generation amount KW1 of the plurality of natural energy-based power generation devices estimated by the total output calculation devices . 間隔を隔てて複数台設置された給電用の自然エネルギ−利用発電装置からなり、前記複数台の給電用の自然エネルギ−利用発電装置のうちの一つが給電用兼計測用の自然エネルギ−利用発電装置である前記発電装置群、
前記給電用兼計測用の自然エネルギ−利用発電装置の発電量から前記複数台の自然エネルギ−利用発電装置の各発電量の合計の発電量を、発電容量と発電量との関係式KVA1：KVA2≒KW1：KW2（但し、KVA1は前記複数台の自然エネルギ−利用発電装置の合計発電容量、KVA2は前記計測用の自然エネルギ−利用発電装置の発電容量、KW1は前記複数台の自然エネルギ−利用発電装置の合計発電量、KW2は前記計測用の自然エネルギ−利用発電装置の発電量）に基づいて前記発電装置群における前記複数台の自然エネルギ−利用発電装置の合計の発電量KW1を推定する合計出力計算装置、及び
前記合計出力計算装置の出力を受信する監視装置を備え、
前記合計出力計算装置が推定した前記複数台の自然エネルギ−利用発電装置の合計の発電量KW1に基づいて前記監視装置が監視動作する自然エネルギ−利用発電監視システム。 A plurality of power-supplying natural energy-use power generation devices installed at intervals, and one of the plurality of power-supplying natural energy-use power generation devices is a power-feeding and measurement-use natural energy-use power generation device The power generation device group, which is a device,
The total power generation amount of each of the plurality of natural energy-utilizing power generation devices from the power generation amount of the natural energy-utilizing power generation device for power feeding and measurement is expressed by a relational expression KVA1: KVA2 ≒ KW1: KW2 (where KVA1 is the total power generation capacity of the plurality of natural energy utilizing power generation devices, KVA2 is the power generation capacity of the natural energy utilizing power generation device for measurement, and KW1 is the utilization of the plurality of natural energy utilizing power sources) The total power generation amount KW1 of the plurality of natural energy-based power generation devices in the power generation device group is estimated based on the total power generation amount of the power generation device, KW2 is the power generation amount of the natural energy-use power generation device for measurement) Total output calculator, and
A monitoring device for receiving the output of the total output calculation device;
A natural energy-based power generation monitoring system in which the monitoring device performs a monitoring operation based on a total power generation amount KW1 of the plurality of natural energy-based power generation devices estimated by the total output calculation device . 間隔を隔てて複数台設置された給電用の自然エネルギ−利用発電装置からなり、それぞれ対応する前記複数台の給電用の自然エネルギ−利用発電装置のうちの一つが給電用兼計測用の自然エネルギ−利用発電装置である複数群の発電装置群、
前記各発電装置群に設置され、対応する前記給電用兼計測用の自然エネルギ−利用発電装置の発電量から、対応する前記複数台の自然エネルギ−利用発電装置の各発電量の合計の発電量を、発電容量と発電量との関係式KVA1：KVA2≒KW1：KW2（但し、KVA1は前記複数台の自然エネルギ−利用発電装置の合計発電容量、KVA2は前記計測用の自然エネルギ−利用発電装置の発電容量、KW1は前記複数台の自然エネルギ−利用発電装置の合計発電量、KW2は前記計測用の自然エネルギ−利用発電装置の発電量）に基づいて、対応する前記発電装置群における前記複数台の自然エネルギ−利用発電装置の合計の発電量KW1を推定する合計出力計算装置、及び
前記合計出力計算装置のそれぞれの出力を受信する監視装置を備え、
前記各合計出力計算装置が推定した前記複数台の自然エネルギ−利用発電装置の合計の発電量KW1に基づいて前記監視装置が監視動作する自然エネルギ−利用発電監視システム。 A plurality of power-supplying natural energy-use power generation devices installed at a distance from each other, and one of the corresponding power supply-use natural energy-use power generation devices is a power supply and measurement-use natural energy. -A plurality of power generation device groups that are power generation devices used;
The total power generation amount of the corresponding power generation amounts of the plurality of natural energy-use power generation devices from the corresponding power generation / measurement-use natural energy-use power generation device installed in each power generation device group. , KVA1: KVA2≈KW1: KW2 (where KVA1 is the total power generation capacity of the plurality of natural energy-based power generation apparatuses, and KVA2 is the natural energy-use power generation apparatus for measurement) Power generation capacity, KW1 is a total power generation amount of the plurality of natural energy-based power generation devices, and KW2 is a power generation amount of the measurement-use natural energy-based power generation device). A total output calculation device for estimating the total power generation amount KW1 of the natural energy-utilizing power generation device of the stand, and
A monitoring device for receiving the output of each of the total output calculation devices;
A natural energy-based power generation monitoring system in which the monitoring device performs a monitoring operation based on a total power generation amount KW1 of the plurality of natural energy-based power generation devices estimated by the total output calculation devices .
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