JP2003111277A - Method and device for estimation of power consumption per group of electric apparatus, and method and device for determination of suitability of reconnection of feed line - Google Patents
Method and device for estimation of power consumption per group of electric apparatus, and method and device for determination of suitability of reconnection of feed lineInfo
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- JP2003111277A JP2003111277A JP2001303335A JP2001303335A JP2003111277A JP 2003111277 A JP2003111277 A JP 2003111277A JP 2001303335 A JP2001303335 A JP 2001303335A JP 2001303335 A JP2001303335 A JP 2001303335A JP 2003111277 A JP2003111277 A JP 2003111277A
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- Prior art keywords
- power
- electric
- supply line
- power supply
- measured
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、電気機器群毎の消
費電力推定方法及び装置並びに給電線の不在電力需要家
への再接続適否を判定する方法及び装置に関する。さら
に詳述すると、本発明は、非侵入的な手法で対象とする
電力需要家の屋内に入ることなく、当該電力需要家の総
負荷電力のみから、予めグループ化された電気機器群毎
の消費電力を推定する方法及び装置、並びに給電線の不
在電力需要家への再接続適否を判定する方法及び装置に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for estimating power consumption for each electric equipment group, and a method and apparatus for determining whether or not reconnection of a power supply line to an absent power consumer is appropriate. More specifically, the present invention uses a non-intrusive method to enter the indoors of the target electric power consumer without using the total load electric power of the electric power consumer, and the consumption of each pre-grouped electric device group is consumed. The present invention relates to a method and apparatus for estimating electric power, and a method and apparatus for determining suitability for reconnection of a power supply line to an absent power consumer.
【０００２】[0002]
【技術用語】本明細書において、「非侵入的」とは、電
力需要家の家屋内に入らずに、給電線引込口付近で測定
する状態のことをいう。また、「ヒータ系電気機器群」
とは、電気コンロや電気ストーブ、アイロン、ヘヤード
ライ等の熱エネルギを得ることを主たる目的とした抵抗
性の電気機器群を意味する。[Technical Term] In the present specification, "non-intrusive" refers to a state in which measurement is performed in the vicinity of a power feed line entrance without entering the house of a power consumer. In addition, "heater system electric equipment group"
The term means a group of resistive electric devices such as an electric stove, an electric stove, an iron, and a hair dryer, whose main purpose is to obtain heat energy.
【０００３】[0003]
【従来の技術】震災等、非常災害時の復旧において、需
要家が不在の場合には基本的には給電を保留する措置が
とられる。しかし、建物の外観が健全である等の状況か
ら、給電しても安全と判断した場合には、配電線が復旧
し次第、給電を再開するケースもある。このようなケー
スにおいて、給電したままにしておくと火災等の危険を
生ずる可能性のあるヒータ系電気機器群が接続されて使
用状態になっているかどうかを非侵入的に推定できれ
ば、安全性をより確かなものにできる。2. Description of the Related Art When recovering from an emergency such as an earthquake, when the customer is absent, the power supply is basically suspended. However, if it is determined that power supply is safe from the situation such as the appearance of the building being healthy, there are cases where power supply is resumed as soon as the distribution line is restored. In such a case, if it is possible to non-intrusively estimate whether or not the heater-related electric equipment group is connected and in use, which may cause a fire or other danger if the power is supplied, the safety can be improved. It can be more certain.
【０００４】従来、電気機器の動作状態を非侵入的に推
定するモニタリングシステムとしては、ＭＩＴ（Massac
husetts Institute of Technology ; 米国) で開発され
たアルゴリスムを用いてＥＰＲＩ(Electric Power Rese
arch Institute; 米国) が装置化しているものがある。
このモニタリングシステムは、電気機器のオン・オフ動
作を電力需要家の総電力負荷カーブのステップ状の時間
変化として捉え、電気機器の定格消費電力及び力率に基
づいてオンあるいはオフとなった電気機器の特定と動作
状態の推定を行うものである。Conventionally, a MIT (Massac) has been used as a monitoring system for non-intrusively estimating the operating state of electric equipment.
EPRI (Electric Power Reseal) using an algorithm developed by the Husetts Institute of Technology (USA)
There are some that have been implemented by the arch Institute (USA).
This monitoring system captures the on / off operation of electric equipment as a stepwise time change of the total power load curve of an electric power consumer, and the electric equipment turned on or off based on the rated power consumption and power factor of the electric equipment. Is specified and the operating state is estimated.
【０００５】また、本件出願人によって、電力需要家に
おいて設置されている電気機器が発生する高調波電流の
パターンに着目し、給電線引込口付近で測定される総負
荷電流と電圧から、総負荷電流の基本波並びに高調波の
電流及び電圧に対するそれらの位相差を求め、そのパタ
ーンから屋内で使用されている電気機器と電気機器個別
の消費電力を推定すること、例えばラージ・マージン・
クラスファイアあるいはニューラルネットワークなどの
推定アルゴリズムを用いたパターン認識手法を応用する
ことにより推定する手法が提案されている。ここで、推
定手段は、標準的な各種電気機器の種々の組み合わせ
と、それらの電気機器の種々の動作状態における個別の
消費電力の組み合わせについて、当該総負荷電流の基本
波並びに高調波の電流及び電圧に対するそれらの位相差
に関するデータと、そのときの解答である電気機器の個
別の消費電力データとからなる教師データをラージ・マ
ージン・クラスファイアあるいはニューラルネットワー
クの推定アルゴリズムに与えてあらかじめ学習して得ら
れるようにしている（PCT/JP01/03168）。Further, the applicant of the present invention pays attention to the pattern of the harmonic current generated by the electric equipment installed in the electric power consumer, and based on the total load current and voltage measured in the vicinity of the feed line inlet, the total load Obtaining the phase difference of the fundamental wave of the current and the harmonics with respect to the current and voltage, and estimating the power consumption of the electrical equipment used indoors and the individual electrical equipment from the pattern, for example, large margin
An estimation method has been proposed by applying a pattern recognition method using an estimation algorithm such as classfire or neural network. Here, the estimation means, for various combinations of standard various electric devices and combinations of individual power consumption in various operating states of those electric devices, the fundamental wave of the total load current and the harmonic current and Obtained by learning in advance by giving teacher data consisting of data on the phase difference with respect to voltage and the power consumption data of individual electric appliances, which is the answer at that time, to the estimation algorithm of the large margin classfire or neural network. (PCT / JP01 / 03168).
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、前者の
モニタリングシステムによると、単純なオン・オフ動作
を行う電気機器（ノンインバータ機器）についてはその
特定と動作状態の推定をおこなうことができるが、冷暖
房装置等のようなインバータ機器とノンインバータ機器
とが混在した状況下では、消費電力の時間的推移が必ず
しもステップ状ではなく、緩やかに変動したりあるいは
不規則に変動することから、個別の電気機器毎の消費電
力の推定が困難であるばかりか、電気機器の動作状態の
推定さえも困難である。However, according to the former monitoring system, it is possible to identify and estimate the operating state of an electric device (non-inverter device) that performs a simple on / off operation. In a situation in which inverter equipment and non-inverter equipment such as devices are mixed, the temporal change in power consumption does not always have a stepwise shape, but rather changes gently or irregularly. Not only is it difficult to estimate the power consumption for each time, but it is also difficult to estimate the operating state of electrical equipment.
【０００７】さらに、不在の電力需要家を対象にした場
合には、当該電力需要家内の電気機器の操作は行われな
いので総電力負荷カーブのステップ状の時間変化は起き
ない。このため、この方法を不在の電力需要家に適用す
ることはできない。Further, in the case of an absent electric power consumer, since the electric equipment in the electric consumer is not operated, the stepwise time change of the total electric power load curve does not occur. Therefore, this method cannot be applied to absent power consumers.
【０００８】また、後者のモニタリングシステムにおい
ても、予測される電力需要家で使用する電気機器の使用
状態とその組み合わせについて事前に学習しなければな
らないし、何らの学習もなしに電気機器毎の消費電力を
接続作業後に直ちに推定することはできない。したがっ
て、保有する電気機器に関する情報のない不在の電力需
要家を対象にした場合には、この方法を適用することは
難しい。Also in the latter monitoring system, it is necessary to learn in advance about the expected usage state of the electric equipment used by the electric power consumer and the combination thereof, and the consumption of each electric equipment without any learning. Electric power cannot be estimated immediately after connecting work. Therefore, it is difficult to apply this method to an absent electric power consumer who does not have information about the electric device owned.
【０００９】本発明は、かかる要望に応えるもので、対
象とする電力需要家の屋内に入ることなく、当該電力需
要家の総負荷電力のみから、需要家内で使用状態にある
電気機器群毎の消費電力を推定する方法及び装置並びに
この推定結果に基いて給電線の再接続適否を判定する方
法及び装置を提供することを目的とする。The present invention responds to such a demand, and does not enter the indoor of the target electric power consumer, but only the total load electric power of the electric power consumer, for each electric equipment group in use in the consumer. It is an object of the present invention to provide a method and apparatus for estimating power consumption, and a method and apparatus for determining suitability for reconnection of power supply lines based on the estimation result.
【００１０】[0010]
【課題を解決するための手段】かかる目的を達成するた
め、本発明者等が種々研究・実験した結果、電力需要家
の屋内で使用される種々の電気機器は印加電圧の変化に
対する有効電力と無効電力の特性に基いて分類（グルー
プ化）できることを知見するに至った。[Means for Solving the Problems] In order to achieve such an object, as a result of various researches and experiments conducted by the present inventors, various electric appliances used indoors of electric power consumers have an effective power for a change in applied voltage. We have found that they can be classified (grouped) based on the characteristics of reactive power.
【００１１】本発明の電気機器群毎の消費電力推定方法
は、かかる知見、即ちグループ化された電気機器毎の有
効電力と無効電力とが印加電圧の変化に対して異なった
特性をもつことを利用するもので、印加電圧の変化に対
する有効電力と無効電力の特性に基いてグループ化され
た電気機器群のうち測定対象となる電気機器群について
印加電圧と有効電力と無効電力との間に成立する相関関
係を予め求めておき、非測定対象である電気機器群の動
作電圧より低い範囲で給電線に印加する電圧を変化させ
て、給電線における総負荷電力の有効電力と無効電力と
を測定し、当該測定された有効電力及び無効電力と予め
求めておいた相関関係とから、測定対象となる電気機器
群毎の消費電力を推定するようにしている。The power consumption estimation method for each electric device group according to the present invention is based on this finding, that is, active power and reactive power for each grouped electric device have different characteristics with respect to changes in applied voltage. It is used, and is established between the applied voltage, active power, and reactive power for the electrical equipment group that is the measurement target among the electrical equipment group that is grouped based on the characteristics of active power and reactive power with respect to changes in applied voltage. Correlation is obtained in advance, and the active power and reactive power of the total load power in the power supply line are measured by changing the voltage applied to the power supply line in the range lower than the operating voltage of the electrical equipment group that is not the measurement target. However, the power consumption of each electric device group to be measured is estimated from the measured active power and reactive power and the correlation obtained in advance.
【００１２】また、この電気機器群毎の消費電力推定方
法を実現する本発明の請求項４記載の電気機器群毎の消
費電力推定装置は、印加電圧の変化に対する有効電力と
無効電力の特性に基いてグループ化された電気機器群の
うち測定対象となる電気機器群について印加電圧と有効
電力と無効電力との間に成立する予め求められた相関関
係を記憶する手段と、非測定対象である電気機器群の動
作電圧より低い範囲で給電線に印加する電圧を変化させ
る手段と、給電線における総負荷電力の有効電力と無効
電力とを測定する手段と、当該測定された有効電力及び
無効電力と予め求められた相関関係とから、測定対象と
なる電気機器群毎の消費電力を推定する手段とを備える
ようにしている。According to a fourth aspect of the present invention, which realizes the power consumption estimation method for each electric equipment group, the power consumption estimation apparatus for each electric equipment group has characteristics of active power and reactive power with respect to changes in applied voltage. Means for storing a predetermined correlation established between the applied voltage, the active power, and the reactive power for the electric equipment group to be measured among the electric equipment group grouped based on the electric equipment group, and the non-measurement object. Means for changing the voltage applied to the power supply line in a range lower than the operating voltage of the electric equipment group, means for measuring active power and reactive power of the total load power in the power supply line, and the measured active power and reactive power And a means for estimating the power consumption for each electrical device group to be measured from the correlation determined in advance.
【００１３】したがって、対象とする電力需要家の屋内
に入ることなく、非測定対象である電気機器群の動作電
圧より低い範囲で給電線に印加する電圧を変化させるこ
とで、給電線の下流に接続されて使用状態にある複数の
電気機器の中から測定対象の電気機器群のみが作動し、
測定対象の電気機器群と非測定対象の電気機器群とを区
分けできる。そして、測定した総負荷電力（有効電力と
無効電力）と、予め求めておいた相関関係とから、測定
対象となる電気機器群毎の消費電力を推定することがで
きる。即ち、各電気機器群毎の消費電力からどのような
電気機器がどの程度屋内のコンセントに接続されて使用
状態になっているか否かを非侵入的に知り得ることがで
きる。Therefore, by changing the voltage applied to the power supply line in a range lower than the operating voltage of the non-measurement target electric equipment group without entering the indoor of the target electric power consumer, Only the electrical equipment group to be measured operates from the multiple electrical equipment connected and in use,
It is possible to distinguish between a measurement target electric device group and a non-measurement target electric device group. Then, from the measured total load power (active power and reactive power) and the correlation obtained in advance, it is possible to estimate the power consumption for each electrical device group to be measured. That is, it is possible to non-intrusively know from the power consumption of each electric device group what kind of electric device is connected to an indoor outlet and in use.
【００１４】また、請求項２記載の給電線の再接続適否
の判定方法は、印加電圧の変化に対する有効電力と無効
電力の特性に基いてグループ化された電気機器群のうち
測定対象となる電気機器群について印加電圧と有効電力
と無効電力との間に成立する相関関係を予め求めてお
き、給電線再接続時に、非測定対象である電気機器群の
動作電圧より低い範囲で給電線に印加する電圧を変化さ
せて、給電線における総負荷電力の有効電力と無効電力
とを測定し、当該測定された有効電力及び無効電力と予
め求めておいた相関関係とから、給電線再接続により危
険を生ずる可能性のある電気機器が属する電気機器群の
消費電力を推定し、当該推定された消費電力が閾値を超
えた時に不在の電力需要家への再給電作業を中止と判定
するようにしている。Further, according to a second aspect of the present invention, there is provided a method for determining suitability for reconnection of a power supply line, in which electrical equipment to be measured is selected from electric equipment groups grouped based on characteristics of active power and reactive power with respect to changes in applied voltage. For the equipment group, the correlation established between the applied voltage and the active power and the reactive power is obtained in advance, and when reconnecting the power supply line, it is applied to the power supply line within a range lower than the operating voltage of the non-measurement target electric device group. The active voltage and the reactive power of the total load power in the power supply line are measured by changing the voltage to be applied, and from the measured active power and reactive power and the previously obtained correlation, there is a risk of reconnection of the power supply line. The power consumption of the electric equipment group to which the electric equipment that may cause the power consumption is estimated, and when the estimated power consumption exceeds the threshold value, it is determined that the re-power supply work to the absent electric power consumer is stopped. Are
【００１５】また、この給電線の再接続適否の判定方法
を実現する本発明の請求項５記載の給電線の再接続適否
の判定装置は、印加電圧の変化に対する有効電力と無効
電力の特性に基いてグループ化された電気機器群のうち
測定対象となる電気機器群について印加電圧と有効電力
と無効電力との間に成立する予め求められた相関関係を
記憶する手段と、非測定対象である電気機器群の動作電
圧より低い範囲で給電線に印加する電圧を変化させる手
段と、給電線における総負荷電力の有効電力と無効電力
とを測定する手段と、当該測定された有効電力及び無効
電力と予め求められた相関関係とから、給電線再接続に
より危険を生ずる可能性のある電気機器が属する電気機
器群の消費電力を推定する手段と、当該推定された消費
電力が閾値を超えた時に不在の電力需要家への再給電作
業を中止と判定する手段とを備えるようにしている。Further, according to a fifth aspect of the present invention, which realizes the method for determining the reconnection suitability of the power supply line, the power supply line reconnection suitability determination device has characteristics of active power and reactive power with respect to changes in applied voltage. Means for storing a predetermined correlation established between the applied voltage, the active power, and the reactive power for the electric equipment group to be measured among the electric equipment group grouped based on the electric equipment group, and the non-measurement object. Means for changing the voltage applied to the power supply line in a range lower than the operating voltage of the electric equipment group, means for measuring active power and reactive power of the total load power in the power supply line, and the measured active power and reactive power And a correlation determined in advance, means for estimating the power consumption of the electric equipment group to which the electric equipment that may cause a danger due to the reconnection of the power supply line, and the estimated power consumption exceeds the threshold value. Sometimes so that and a stop and means for determining the re-feeding operation to the absence of electric power consumers.
【００１６】したがって、給電線再接続により危険を発
生する可能性のある電気機器が属する電気機器群の消費
電力の大きさを推定して、その大きさから不在電力需要
家の給電線再接続時の安全性を判断することができる。
更に、閾値を超えた時に再給電中止と判定するようにし
ているので、再給電に関する判断が一律となり、適切な
判断が下せるようになる。Therefore, when the electric power consumption of the electric equipment group to which the electric equipment which may cause a danger due to the reconnection of the electric power supply line belongs is estimated, and the electric power consumption of the absent electric power consumer is reconnected to the electric power supply line. You can judge the safety of.
Further, since it is determined that the re-power supply is stopped when the threshold value is exceeded, the determination regarding the re-power supply becomes uniform and the appropriate determination can be made.
【００１７】また、本発明者は、不在電力需要家におい
て給電したままにしておくと火災の危険を招く恐れのあ
るヒータ系電気機器は、印加電圧の変化に対する有効電
力と無効電力に関して同様の特性を示し、ヒータ系電気
機器群として纏められることに着目した。そこで、請求
項３記載の給電線の再接続適否の判定方法は、印加電圧
の変化に対する有効電力と無効電力の特性に基いてグル
ープ化された電気機器群のうち測定対象となる電気機器
群について印加電圧と有効電力と無効電力との間に成立
する相関関係を予め求めておき、給電線再接続時に、非
測定対象である電気機器群の動作電圧より低い範囲で給
電線に印加する電圧を変化させて、給電線における総負
荷電力の有効電力と無効電力とを測定し、当該測定され
た有効電力及び無効電力と相関関係とから、ヒータ系電
気機器群の消費電力を推定し、ヒータ系電気機器群の消
費電力が閾値を超えた時に不在の電力需要家への再給電
作業を中止と判定するようにしている。In addition, the present inventor has found that a heater-type electric device which may cause a fire hazard if left unpowered in the absent power consumer has similar characteristics regarding active power and reactive power with respect to changes in applied voltage. , And paid attention to the fact that they can be grouped as a group of heater-type electric devices. Therefore, the method for determining the suitability of reconnection of the power supply line according to claim 3 is for an electric device group to be measured among electric device groups grouped based on the characteristics of active power and reactive power with respect to changes in applied voltage. The correlation established between the applied voltage, active power, and reactive power is obtained in advance, and when reconnecting the power supply line, determine the voltage to be applied to the power supply line in a range lower than the operating voltage of the electrical equipment group that is not the measurement target. The active power and the reactive power of the total load power in the power supply line are changed to measure the power consumption of the heater system electric device group from the measured active power and reactive power and the correlation, and the heater system When the power consumption of the electric device group exceeds the threshold value, it is determined that the re-feeding work to the absent electric power consumer is stopped.
【００１８】また、請求項６記載の給電線の再接続適否
の判定装置は、印加電圧の変化に対する有効電力と無効
電力の特性に基いてグループ化された電気機器群のうち
測定対象となる電気機器群について印加電圧と有効電力
と無効電力との間に成立する予め求められた相関関係を
記憶する手段と、非測定対象である電気機器群の動作電
圧より低い範囲で給電線に印加する電圧を変化させる手
段と、給電線における総負荷電力の有効電力と無効電力
とを測定する手段と、当該測定された有効電力及び無効
電力と予め求められた相関関係とから、ヒータ系電気機
器群の消費電力を推定する手段と、ヒータ系電気機器群
の消費電力が閾値を超えた時に不在の電力需要家への再
給電作業を中止と判定する手段とを備えるようにしてい
る。In addition, the device for determining reconnection suitability of a power supply line according to a sixth aspect of the invention is an electric device to be measured out of a group of electric devices grouped based on the characteristics of active power and reactive power with respect to changes in applied voltage. Means for storing a predetermined correlation established between the applied voltage and the active power and the reactive power for the device group, and the voltage applied to the power supply line in a range lower than the operating voltage of the electrical device group that is not the measurement target From the means for measuring the active power and the reactive power of the total load power in the power supply line, and the measured active power and reactive power and the previously determined correlation, A means for estimating the power consumption and a means for determining that the re-power supply operation to the absent electric power consumer is stopped when the power consumption of the heater-type electric equipment group exceeds the threshold value are provided.
【００１９】したがって、不在電力需要家において給電
したままにしておくと火災の危険を招く恐れのあるヒー
タ系電気機器群の消費電力の大きさを推定して、不在電
力需要家の給電線再接続時の安全性を適切に判断するこ
とができる。Therefore, the power consumption of the heater system electric equipment group, which may cause a fire if left unpowered by the absent power consumer, is estimated, and the power supply line of the absent power consumer is reconnected. It is possible to properly judge the safety of time.
【００２０】[0020]
【発明の実施の形態】以下、本発明の構成を図面に示す
実施形態に基づいて詳細に説明する。BEST MODE FOR CARRYING OUT THE INVENTION The structure of the present invention will be described below in detail based on the embodiments shown in the drawings.
【００２１】先ず、印加電圧の変化に対する有効電力と
無効電力の特性に基いて、電気機器を分類する一例につ
いて説明する。First, an example of classifying electrical equipment based on the characteristics of active power and reactive power with respect to changes in applied voltage will be described.
【００２２】電気機器は、使用されている状態で給電が
一旦停止された場合に、給電再開後に停電前の動作状態
に戻る機器と、給電が再開されても主電源がオフあるい
は待機モードになり停電前と同じ動作状態には戻らない
機器とに分類できる。前者に属する電気機器を表１に、
後者に属する電気機器を表２に例示する。In the electric equipment, when the power supply is temporarily stopped while being used, the equipment returns to the operating state before the power failure after the power supply is restarted, and the main power supply is turned off or in the standby mode even when the power supply is restarted. It can be classified as a device that does not return to the same operating state as before the power failure. The electrical equipment belonging to the former is shown in Table 1,
Table 2 exemplifies the latter electrical equipment.
【表１】 [Table 1]
【表２】
給電線１３の再接続適否の判定は、主として給電再開後
に停電前の動作状態に戻る電気機器、即ち表１に例示す
る電気機器を対象とすれば足りる。表１に例示した電気
機器について、停電後の給電を再開する際に印加する電
圧を０［Ｖ］から徐々に上げていくと、有効電力および
無効電力は図２〜図７に示す特性を示す。なお、ここで
は、各電気機器の用途から、「発熱主体の電気機器（電
動ポット、コタツランプ、クッキングヒータ、アイロ
ン、トースター、電気ストーブ）」、「照明器具（蛍光
灯（磁気回路式安定器型）、インバータ蛍光灯、白熱
灯）」、「その他の電気機器（ＩＨジャー炊飯器（炊飯
モード）、テレビ）」とに仮に分類している。[Table 2] The determination as to whether or not the reconnection of the power supply line 13 is appropriate may be performed mainly for the electric devices that return to the operating state before the power failure after the power supply is restarted, that is, the electric devices illustrated in Table 1. With respect to the electric devices illustrated in Table 1, when the voltage applied when resuming power supply after a power failure is gradually increased from 0 [V], active power and reactive power show the characteristics shown in FIGS. 2 to 7. . In addition, here, from the application of each electric equipment, "electric equipment mainly generating heat (electric pot, kotatsu lamp, cooking heater, iron, toaster, electric stove)", "lighting equipment (fluorescent lamp (magnetic circuit type ballast type)" , Inverter fluorescent lamps, incandescent lamps ”, and“ other electric devices (IH jar rice cooker (rice cooking mode), TV) ”.
【００２３】同図２〜図７に示したこれらの電気機器
は、印加電圧に対する有効電力と無効電力の特性から、
例えば表３に示すように四つの群に分類することができ
る。These electric devices shown in FIGS. 2 to 7 have the characteristics of active power and reactive power with respect to the applied voltage.
For example, they can be classified into four groups as shown in Table 3.
【表３】
ここで、表３中の第ＩＶ分類に属する電気機器（電源回
路等に電子制御回路を有する電気機器）の中には発熱主
体の電気機器（電動ポット等）が含まれるが、これらの
機器は、電子制御回路によって発熱が一定値以下に制御
される或いは空焚きの場合には電源がオフとなる等の安
全策を講じている場合が殆んどであり、不在電力需要家
において給電再開後に停電前の動作状態に戻ったとして
も、火災等の危険を生ずる可能性は少ないと考えられ
る。そこで、例えば本実施形態では、４０［Ｖ］程度未
満の印加電圧に対して有効電力または無効電力を発生す
る表３中の第Ｉ分類から第III分類に属する電気機器
を、電気機器群毎の消費電力推定並びに給電線１３の再
接続適否の判定に係る測定対象とする。そして、例えば
本実施形態では、特に第Ｉ分類の中の「ヒータ系電気機
器群」の消費電力の大きさから給電線１３の再接続適否
の判定を行うようにする。[Table 3] Here, the electric devices (electric devices having an electronic control circuit in the power supply circuit, etc.) belonging to the IV classification in Table 3 include electric devices mainly producing heat (electric pots, etc.). In most cases, safety measures are taken by the electronic control circuit such that the heat generation is controlled below a certain value or the power is turned off in the case of no heating. Even if it returns to the operating state before the power failure, it is considered unlikely to cause a danger such as fire. Therefore, for example, in the present embodiment, the electrical devices belonging to the I-th to the III-th categories in Table 3 that generate active power or reactive power with respect to the applied voltage of less than about 40 [V] are classified by the electrical device group. The measurement target is related to power consumption estimation and determination of suitability for reconnection of the power supply line 13. Then, for example, in the present embodiment, the reconnection suitability of the power supply line 13 is determined based on the power consumption of the "heater system electric device group" in the I-th classification.
【００２４】当該測定対象となる電気機器について、図
２〜図５に示した印加電圧に対応する有効電力および無
効電力を、印加電圧１００［Ｖ］の時の値を１００％と
した百分率で表示する（換言すれば、印加電圧に対応す
る有効電力・無効電力を印加電圧１００［Ｖ］の時の有
効電力・無効電力で各々除して無次元化する）と、図８
〜図１０における回帰曲線で示すことができる。なお、
蛍光灯（磁気回路式安定器型）の無効電力（図１０）
は、図５において０〜８０［Ｖ］の曲線を１００［Ｖ］
までスムースに延長して求めた値を、印加電圧１００
［Ｖ］の時の値として無次元化している。これらの回帰
曲線は、印加電圧の変化に対する有効電力と無効電力の
特性を表すものである。そして、これらの回帰曲線に基
いて、本実施形態における測定対象の電気機器は、「ヒ
ータ系電気機器群（クッキングヒータ、オーブントース
ター、スチームアイロン、クッキングヒータ等）」、
「ランプ系電気機器群（白熱灯、コタツランプ等）」、
「蛍光灯（磁気回路式安定器型）」、「冷蔵庫等」の四
つの群に分類（グループ化）できる。ここで、「ヒータ
系電気機器群」と「ランプ系電気機器群」とは、表３に
おいてはいずれも第Ｉ分類に属しているが、回帰曲線の
違いから図８に示すように更に区別することができる。
尚、当該回帰曲線の違いは、「ヒータ系電気機器」と
「ランプ系電気機器」に使用されている抵抗体の仕様の
違いに起因する。なお、コタツランプは、その用途から
図２及び図３では「発熱主体の電気機器」に分類した
が、印加電圧に対する有効電力と無効電力の特性は白熱
灯等と同様の特性を示すことから「ランプ系電気機器
群」に属するものとしている。With respect to the electric device to be measured, the active power and reactive power corresponding to the applied voltage shown in FIGS. 2 to 5 are displayed as a percentage with the value when the applied voltage is 100 [V] being 100%. 8 (in other words, the active power / reactive power corresponding to the applied voltage is divided by the active power / reactive power when the applied voltage is 100 [V] to make dimensionless).
~ It can be shown by the regression curve in FIG. In addition,
Reactive power of fluorescent lamp (magnetic circuit type ballast type) (Fig. 10)
Shows a curve of 0 to 80 [V] in FIG.
The value obtained by smoothly extending up to
The value at the time of [V] is made dimensionless. These regression curves represent the characteristics of active power and reactive power with respect to changes in applied voltage. Then, based on these regression curves, the electrical equipment to be measured in the present embodiment is "heater system electrical equipment group (cooking heater, oven toaster, steam iron, cooking heater, etc.)",
"Lamp system electrical equipment group (incandescent lamp, kotatsu lamp, etc.)",
It can be classified (grouped) into four groups: "fluorescent lamp (magnetic circuit type ballast type)" and "refrigerator, etc." Here, the “heater system electric device group” and the “lamp system electric device group” both belong to the I-th classification in Table 3, but are further distinguished as shown in FIG. 8 due to the difference in the regression curve. be able to.
The difference in the regression curve is due to the difference in the specifications of the resistors used in the "heater electric device" and the "lamp electric device". 2 and 3, the kotatsu lamp is classified as an "electrical device that mainly generates heat", but the characteristics of active power and reactive power with respect to the applied voltage are similar to those of an incandescent lamp. It is assumed that it belongs to the "lamp-type electric equipment group".
【００２５】以上から、給電線１３に０〜４０［Ｖ］程
度の範囲で電圧を印加して、当該給電線１３において測
定した総負荷電力の有効電力および無効電力は、４０
［Ｖ］程度において有効電力または無効電力を発生する
「ヒータ系電気機器群」「ランプ系電気機器群」「蛍光
灯（磁気回路式安定器型）」「冷蔵庫等」の有効電力の
総和および無効電力の総和とそれぞれ略等しくなり、数
式１と数式２で与えられる。From the above, the active power and the reactive power of the total load power measured on the power supply line 13 by applying a voltage in the range of about 0 to 40 [V] to the power supply line 13 are 40
Total and invalid active power of "heater system electrical device group", "lamp system electrical device group", "fluorescent lamp (magnetic circuit ballast type)", "refrigerator, etc." that generates active power or reactive power at about [V] It becomes approximately equal to the sum of the electric powers, respectively, and is given by Equations 1 and 2.
【数１】 Ｐ（Ｖ）≒ａＨｒ（Ｖ）＋ｂＩｒ（Ｖ）＋ｄＲｒ（Ｖ）[Equation 1] P (V) ≈aHr (V) + bIr (V) + dRr (V)
【数２】
Ｑ（Ｖ）≒ｃｑｃＦｉ（Ｖ）＋ｄｑｄＲｉ（Ｖ）
ただし、
Ｖ：印加電圧
Ｐ（Ｖ）：総負荷電力の有効電力
Ｑ（Ｖ）：総負荷電力の無効電力
ａ：ヒータ系電気機器群の消費電力（印加電圧１００
［Ｖ］における有効電力）［Ｗ］
ｂ：ランプ系電気機器群の消費電力（印加電圧１００
［Ｖ］における有効電力）［Ｗ］
ｃ：蛍光灯（磁気回路式安定器型）の消費電力（印加電
圧１００［Ｖ］における有効電力）［Ｗ］
ｄ：冷蔵庫等の消費電力（印加電圧１００［Ｖ］におけ
る有効電力）［Ｗ］
Ｈｒ（Ｖ）：電圧Ｖを印加した時のヒータ系電気機器群
の有効電力（百分率表示）
Ｉｒ（Ｖ）：電圧Ｖを印加した時のランプ系電気機器群
の有効電力（百分率表示）
Ｆｉ（Ｖ）：電圧Ｖを印加した時の蛍光灯（磁気回路式
安定器型）の無効電力（百分率表示）
Ｒｒ（Ｖ）：電圧Ｖを印加した時の冷蔵庫等の有効電力
（百分率表示）
Ｒｉ（Ｖ）：電圧Ｖを印加した時の冷蔵庫等の無効電力
（百分率表示）[Number 2] Q (V) ≒ c q cFi (V) + d q dRi (V) , however, V: applied voltage P (V): active power Q of the total load power (V): reactive power a total load power : Power consumption of the heater system electric equipment group (applied voltage 100
Active power at [V] [W] b: Power consumption of lamp-type electric equipment group (applied voltage: 100)
Active power at [V] [W] c: Power consumption of fluorescent lamp (magnetic circuit type ballast type) (active power at applied voltage 100 [V]) [W] d: Power consumption of refrigerator or the like (applied voltage 100) Active power at [V] [W] Hr (V): Active power of the heater electric device group when the voltage V is applied (in percentage) Ir (V): Lamp electric device when the voltage V is applied Active power of group (percentage display) Fi (V): Reactive power of fluorescent lamp (magnetic circuit type ballast type) when voltage V is applied (percentage display) Rr (V): Refrigerator when voltage V is applied Active power (percentage display) Ri (V): Reactive power of the refrigerator when voltage V is applied (percentage display)
【００２６】Ｈｒ（Ｖ）、Ｉｒ（Ｖ）、Ｆｉ（Ｖ）、Ｒ
ｒ（Ｖ）、Ｒｉ（Ｖ）は、図８〜図１０に記した回帰曲
線の方程式より、数式３から数式６で表される。なお、
ヒータ系電気機器群の無効電力、ランプ系電気機器群の
無効電力、蛍光灯（磁気回路式安定器型）の有効電力
は、給電線１３に０〜４０［Ｖ］程度の範囲で電圧を印
加した場合、殆んど０であり無視できる。Hr (V), Ir (V), Fi (V), R
r (V) and Ri (V) are represented by Equations 3 to 6 from the equations of the regression curves shown in FIGS. 8 to 10. In addition,
The reactive power of the heater electric device group, the reactive power of the lamp electric device group, and the active power of the fluorescent lamp (magnetic circuit type ballast type) are applied to the power supply line 13 within a range of 0 to 40 [V]. When it does, it is almost 0 and can be ignored.
【数３】 Ｈｒ（Ｖ）＝０．０００１Ｖ２＋０．００００５ＶHr (V) = 0.0001V 2 + 0.00005V
【数４】 Ｉｒ（Ｖ）＝０．００００６Ｖ２＋０．００３６Ｖ## EQU4 ## Ir (V) = 0.00006V 2 + 0.0036V
【数５】 Ｒｒ（Ｖ）＝０．０００１Ｖ２−０．０００３Ｖ[Number 5] Rr (V) = 0.0001V 2 -0.0003V
【数６】
Ｆｉ（Ｖ）＝Ｒｉ（Ｖ）＝０．０００１Ｖ２−０．００
００６Ｖ[6] Fi (V) = Ri (V ) = 0.0001V 2 -0.00
006V
【００２７】ここで、有効電力を表すｃとｄを数式２に
用いるには無効電力への変換が必要であるため、ｃｑ、
ｄｑを用いている。ｃｑは、「蛍光灯（磁気回路式安定
器型）」における無効電力の測定結果（図５）において
０〜８０［Ｖ］の曲線をスムースに１００［Ｖ］まで延
長したときの値と、図４において１００［Ｖ］を印加し
た時の有効電力の値との比（即ち、無効電力／有効電
力）である。ｄｑは、「冷蔵庫等」における印加電圧１
００［Ｖ］の時の無効電力と有効電力との比（即ち、無
効電力／有効電力）である。測定値からｃｑ＝０．９
４、ｄｑ＝０．５４である。以下、本実施形態では、Ｈ
ｒ（Ｖ）、Ｉｒ（Ｖ）、Ｒｒ（Ｖ）、Ｆｉ（Ｖ）、Ｒｉ
（Ｖ）を特性式と呼ぶ。また、ｃｑ、ｄｑを変換係数と
呼ぶ。特性式と変換係数は、測定対象となる電気機器群
について印加電圧と有効電力と無効電力との間に成立す
る相関関係のいわば一表現であり、上記のように予め求
めることが可能である。Here, in order to use c and d, which represent active power, in Equation 2, conversion to reactive power is necessary, so c q ,
d q is used. c q is a value when the curve of 0 to 80 [V] is smoothly extended to 100 [V] in the measurement result (FIG. 5) of the reactive power in the “fluorescent lamp (magnetic circuit type ballast type)”, In FIG. 4, it is a ratio with the value of active power when 100 [V] is applied (that is, reactive power / active power). d q is an applied voltage 1 in a “refrigerator or the like”
It is the ratio of the reactive power and the active power at 00 [V] (that is, the reactive power / active power). From the measured value, c q = 0.9
4, dq = 0.54. Hereinafter, in this embodiment, H
r (V), Ir (V), Rr (V), Fi (V), Ri
(V) is called a characteristic formula. Also, c q and d q are called transform coefficients. The characteristic equation and the conversion coefficient are, so to speak, one expression of the correlation established between the applied voltage, the active power, and the reactive power for the electrical equipment group to be measured, and can be obtained in advance as described above.
【００２８】測定対象となる電気機器群毎の１００
［Ｖ］を印加した時の消費電力ａ，ｂ，ｃ，ｄは、数式
１および数式２に基いた方程式を、必要な数（未知数が
４つであるから一般には４つの方程式）だけ得て、当該
得られた連立方程式を解くことで求めることができる。
当該連立方程式は、０〜４０［Ｖ］程度未満の範囲で印
加電圧を変化させて、異なる印加電圧に対応する総負荷
電力の有効電力および無効電力を必要な数（例えば４つ
の方程式を立てるために、各々２つ）だけ求めることで
得られる。100 for each group of electrical equipment to be measured
The power consumptions a, b, c, and d when [V] is applied can be obtained by obtaining the required number (equal to four equations in general because there are four unknowns) of the equations based on the equations 1 and 2. , Can be obtained by solving the obtained simultaneous equations.
In the simultaneous equations, the applied voltage is changed in the range of about 0 to less than 40 [V], and the required number of active powers and reactive powers of the total load power corresponding to different applied voltages are required (for example, to establish four equations). , Each of which is 2).
【００２９】次に、電気機器群毎の消費電力推定方法並
びに給電線１３の再接続適否の判定方法を実現する装置
の一実施形態を図１１に示す。電気機器群毎の消費電力
推定装置２は、印加電圧の変化に対する有効電力と無効
電力の特性に基いてグループ化された電気機器群のうち
測定対象となる電気機器群について印加電圧と有効電力
と無効電力との間に成立する予め求められた相関関係を
記憶する手段７（以下、記憶手段７と呼ぶ）と、非測定
対象である電気機器群の動作電圧より低い範囲で給電線
１３に印加する電圧を変化させる手段４（以下、電圧調
整手段４と呼ぶ）と、給電線１３における総負荷電力の
有効電力と無効電力とを測定する手段５（以下、電力測
定手段５と呼ぶ）と、当該測定された有効電力及び無効
電力と予め求められた相関関係とから、当該測定された
有効電力及び無効電力と予め求められた相関関係とか
ら、測定対象となる電気機器群毎の消費電力を推定する
手段６（以下、消費電力推定手段６と呼ぶ）とを備えて
なる。そして、この消費電力推定装置２を利用する給電
線１３の再接続適否の判定装置１は、給電線再接続によ
り危険を生ずる可能性のある電気機器が属する電気機器
群の消費電力（例えば本実施形態では、「ヒータ系電気
機器群」の消費電力ａ）が、閾値を超えた時に不在の電
力需要家１４への再給電作業を中止と判定する手段３
（以下、判定手段３と呼ぶ）を備えるようにしている。Next, FIG. 11 shows an embodiment of an apparatus for realizing the power consumption estimation method for each electric equipment group and the method for determining whether or not the reconnection of the feeder line 13 is appropriate. The power consumption estimation device 2 for each electric device group determines the applied voltage and the active power for the electric device group to be measured among the electric device groups that are grouped based on the characteristics of the active power and the reactive power with respect to the change in the applied voltage. Means 7 for storing a predetermined correlation established with the reactive power (hereinafter referred to as storage means 7), and applied to the power supply line 13 in a range lower than the operating voltage of the electrical equipment group that is not the measurement target. Means 4 for changing the voltage to be applied (hereinafter referred to as voltage adjusting means 4), means 5 for measuring active power and reactive power of the total load power in the power supply line 13 (hereinafter referred to as power measuring means 5), From the measured active power and reactive power and the previously determined correlation, from the measured active power and reactive power and the previously determined correlation, the power consumption for each electrical device group to be measured Estimation That means 6 (hereinafter, referred to as the power consumption estimating means 6) comprising a. Then, the device 1 for determining the reconnection suitability of the power supply line 13 using the power consumption estimation device 2 uses the power consumption of an electric device group to which an electric device that may cause a danger due to the power supply line reconnection (for example, the present embodiment). In the form, when the power consumption a) of the “heater system electric equipment group” exceeds the threshold value, the means 3 for judging that the re-power supply work to the absent electric power consumer 14 is stopped.
(Hereinafter, referred to as determination means 3).
【００３０】ここで、測定対象の電気機器群とは、例え
ば本実施形態では「ヒータ系電気機器群」、「ランプ系
電気機器群」、「蛍光灯（磁気回路式安定器型）」、
「冷蔵庫等」である。非測定対象の電気機器群とは、例
えば本実施形態では、表３中の第ＩＶ分類に属する電気
機器群である。測定対象の電気機器群について印加電圧
と有効電力と無効電力との間に成立する相関関係とは、
例えば本実施形態では、数式３〜数式６に示す特性式
と、変換係数ｃｑ、ｄｑが該当する。Here, the electric equipment group to be measured is, for example, in the present embodiment, "heater electric equipment group", "lamp electric equipment group", "fluorescent lamp (magnetic circuit type ballast type)",
"Refrigerator, etc." The non-measurement target electric device group is, for example, in the present embodiment, an electric device group belonging to the IV-th category in Table 3. The correlation established between the applied voltage, the active power, and the reactive power for the electrical equipment group to be measured is
For example, in the present embodiment, the characteristic expressions shown in Expressions 3 to 6 and the conversion coefficients c q and d q correspond.
【００３１】記憶手段７は、例えば電気的又は磁気的操
作により情報を読書き可能に構成されるメモリであり、
特性式（数式３〜数式６）と、変換係数ｃｑ、ｄｑの値
とが予め書き込まれている。The storage means 7 is, for example, a memory capable of reading and writing information by electrical or magnetic operation,
The characteristic formulas (Formulas 3 to 6) and the values of the conversion coefficients c q and d q are written in advance.
【００３２】電圧調整手段４は、非測定対象である電気
機器群の動作電圧より低い範囲（測定対象の電気機器群
と非測定対象の電気機器群とを区分けできる範囲、例え
ば本実施形態では０〜４０［Ｖ］程度の範囲）で給電線
１３に印加する電圧を制御できるものであり、既知の又
は新規の電圧調整装置を用いて良い。The voltage adjusting means 4 has a range lower than the operating voltage of the non-measurement target electric equipment group (a range in which the measurement target electric equipment group can be distinguished from the non-measurement target electric equipment group, for example, 0 in the present embodiment). The voltage applied to the power supply line 13 can be controlled within a range of about 40 [V], and a known or new voltage adjusting device may be used.
【００３３】電力測定手段５は、対象電力需要家１４に
おける給電線１３の有効電力と無効電力を求めるもので
ある。ここで、一般に、有効電力Ｐおよび無効電力Ｑ
は、交流の場合には、電圧ｖ ｓｉｎωｔ、電流ｉ ｓ
ｉｎ（ωｔ−ψ）とすると、The power measuring means 5 obtains the active power and the reactive power of the power supply line 13 in the target power consumer 14. Here, in general, active power P and reactive power Q
Is a voltage v sin ωt and a current is in the case of alternating current
If in (ωt−ψ),
【数７】
で定義されるので、無効電力の演算では電圧または電流
をπ／２ラジアン（９０°）移相し、演算を行う方法が
一般的である。そこで、この電力測定手段５は、給電線
１３の電圧及び電流を検出してそれぞれに比例する電圧
信号、電流信号を出力させる電圧検出部８と電流検出部
９とを備え、電圧信号と電流信号とを乗算して有効電力
演算部１１で有効電力を求めると共に、遅延部１０を介
して９０°移相された電圧検出部８の出力する電圧信号
と電流検出部９の出力する電流に比例した電流信号とを
乗算して無効電力演算部１２で無効電力を求めるもので
ある。尚、有効電力と無効電力とを測定する装置として
は上述のものに特に限定されるものではなく、特開平５
−２７３２４２号、特開２０００−２５８４７３号など
で周知技術である。[Equation 7] Therefore, in the calculation of the reactive power, the method of shifting the voltage or the current by π / 2 radians (90 °) is generally used. Therefore, the power measuring means 5 includes a voltage detection unit 8 and a current detection unit 9 that detect the voltage and the current of the power supply line 13 and output a voltage signal and a current signal that are proportional to the voltage and the current, respectively. Is multiplied by to obtain active power in the active power calculation unit 11, and is proportional to the voltage signal output from the voltage detection unit 8 and the current output from the current detection unit 9 that are phase-shifted by 90 ° via the delay unit 10. The reactive power is calculated by multiplying the current signal with the reactive power. The device for measuring the active power and the reactive power is not particularly limited to the above-mentioned device, and is disclosed in Japanese Patent Laid-Open No.
It is a well-known technique such as -273242 and JP-A-2000-258473.
【００３４】消費電力推定手段６は、給電線再接続によ
り危険を生ずる可能性のある電気機器が属する電気機器
群（例えば、不在電力需要家において給電したままにし
ておくと火災の危険を招く恐れのあるヒータ系電気機器
群）の消費電力を推定するものである。本実施形態の消
費電力推定手段６は、例えば測定対象となる電気機器群
毎の１００［Ｖ］を印加した時の消費電力ａ，ｂ，ｃ，
ｄを次のように求めるようにしている。即ち、消費電力
推定手段６は、電圧検出部８に出力される電圧信号と、
記憶手段７から読み出した数式３〜数式６とから、電力
測定手段５で求められた有効電力と無効電力とに対応す
る特性式の値を算出すると共に、当該算出した特性式の
値と有効電力と無効電力との組合せを一時的に保持し
て、異なる印加電圧における有効電力、無効電力、当該
特性式の値の組合せが必要な数だけ求まったら、数式１
および数式２に基いた連立方程式を立ててこれを解き、
測定対象となる電気機器群毎の１００［Ｖ］を印加した
時の消費電力ａ，ｂ，ｃ，ｄを求めるようにしている。
なお、ａ，ｂ，ｃ，ｄを全て求めるものに限定されず、
例えば給電線再接続により危険を生ずる可能性のある電
気機器が属する電気機器群の消費電力（例えば「ヒータ
系電気機器群」の消費電力ａ）が求まった時点で計算を
打ち切るようにしても良い。The power consumption estimating means 6 belongs to a group of electric equipment to which electric equipment that may cause a danger due to reconnection of the power supply line (for example, leaving a power supply to an absent electric power consumer may cause a fire hazard). It is intended to estimate the power consumption of a heater-type electric device group). The power consumption estimation means 6 of the present embodiment uses, for example, power consumption a, b, c, when 100 [V] is applied to each electric device group to be measured.
d is calculated as follows. That is, the power consumption estimation means 6 includes a voltage signal output to the voltage detection unit 8 and
The values of the characteristic equations corresponding to the active power and the reactive power obtained by the power measuring means 5 are calculated from the equations 3 to 6 read from the storage means 7, and the calculated value of the characteristic equation and the active power are calculated. If the required number of combinations of active power, reactive power, and the value of the characteristic formula at different applied voltages are obtained by temporarily holding the combination of
And set up simultaneous equations based on Equation 2 and solve them,
The power consumption a, b, c, d when 100 [V] is applied for each electric device group to be measured is calculated.
It should be noted that the present invention is not limited to the one in which all of a, b, c and d are obtained,
For example, the calculation may be terminated when the power consumption of the electric equipment group to which the electric equipment that may cause a danger due to reconnection of the power supply line belongs (for example, the power consumption a of the “heater electric equipment group”) is obtained. .
【００３５】判定手段３は、給電線再接続により危険を
発生する可能性のある電気機器が属する電気機器群の消
費電力、本実施形態では「ヒータ系の電気機器群」の消
費電力ａが、閾値を超えた時に再給電中止と判断し、そ
の旨のメッセージ等を図示していない表示手段（ディス
プレイなど）に表示したり、警告音を図示していないス
ピーカなどから出力させるようにしている。尚、これら
各演算部や手段は、通常、電子回路によって、あるいは
少なくとも１つの中央演算処理部（ＣＰＵ）とメモリ及
びこれらに所定の演算処理を行わせるプログラムによっ
て構成されている。The determining means 3 determines that the power consumption of the electric equipment group to which the electric equipment that may cause a danger due to the reconnection of the power supply line belongs, that is, the power consumption a of the "heater electric equipment group" in this embodiment. When the threshold value is exceeded, it is determined that the re-power supply is to be stopped, a message to that effect is displayed on a display unit (such as a display) (not shown), and a warning sound is output from a speaker (not shown). It should be noted that each of these arithmetic units and means is usually composed of an electronic circuit, or at least one central arithmetic processing unit (CPU) and a memory, and a program for causing these to perform predetermined arithmetic processing.
【００３６】ここで、給電線再接続により危険を発生す
る可能性のある電気機器とは、主に、不在電力需要家に
おいて給電したままにしておくと火災の危険を招く恐れ
のあるヒータ系の電気機器が該当するが、必ずしもこれ
に特に限定されるものではない。例えば、この他に、不
在電力需要家（工場等）において再給電を行うと不測の
動作により危険を生じる可能性のあるロボット等が考え
られる。また閾値は、実験等により予め求められた安全
性に疑いが生じるヒータ系の電気機器の消費電力である
ことが好ましいが、これに特に限定されるものではなく
任意に設定できる。なお、判定手段３は、測定対象とな
る電気機器群毎の消費電力を推定するだけの場合には、
必ずしも設けなくとも良い。Here, an electric device that may cause a danger due to reconnection of the power supply line is mainly a heater system that may cause a fire risk if the power supply is left in an absent power consumer. The electric device is applicable, but is not necessarily limited to this. For example, in addition to this, a robot or the like that may cause a danger due to an unexpected operation when power is re-supplied in an absent power consumer (factory or the like) is conceivable. Further, the threshold value is preferably the power consumption of the electric device of the heater system in which the safety is doubted, which is obtained in advance by experiments or the like, but is not particularly limited to this and can be arbitrarily set. In addition, when the determination means 3 only estimates the power consumption for each electrical device group to be measured,
It does not have to be provided.
【００３７】本発明の給電線１３の再接続適否の判定方
法及び装置１によれば、図１に示すように、給電線１３
の再接続時に、対象とする電力需要家１４の屋内に入る
ことなく、本装置１を給電線１３の電力需要家入口付近
に接続し、給電線１３に印加する電圧を０［Ｖ］から４
０［Ｖ］程度の範囲で変化させて、測定した総負荷電力
（有効電力と無効電力）のみから、給電線１３の下流に
接続されて使用状態にある複数の電気機器を「ヒータ系
の電気機器群」「ランプ系の電気機器群」「蛍光灯（磁
気回路式安定器型）」「冷蔵庫等」に分類して、夫々の
群毎の１００［Ｖ］を印加した時の消費電力ａ，ｂ，
ｃ，ｄを推定できる。さらに、給電線１３の再接続の適
否を判定、つまり、給電したままにしておくと火災等の
危険を招く恐れのある電気機器（主としてヒータ系の電
気機器）が接続されて使用状態になっているかどうか
を、家の中に入ることなく簡便に推定することができ
る。According to the method and the device 1 for judging the reconnection suitability of the power supply line 13 of the present invention, as shown in FIG.
At the time of reconnection, the device 1 is connected to the vicinity of the power customer entrance of the power supply line 13 without entering the target power customer 14 indoors, and the voltage applied to the power supply line 13 is changed from 0 [V] to 4 [V].
A plurality of electric devices connected to the downstream of the power supply line 13 and being in use are changed from the total load power (active power and reactive power) measured by changing in the range of about 0 [V], and the "heater system electric Power consumption a when 100 [V] is applied to each group, which is classified into "device group", "lamp-type electric device group", "fluorescent lamp (magnetic circuit type ballast type)", "refrigerator, etc." b,
c and d can be estimated. Furthermore, it is determined whether or not the reconnection of the power supply line 13 is appropriate, that is, an electric device (mainly a heater-type electric device) that may cause a risk of fire or the like when connected to the power supply is connected and is in a use state. You can easily estimate whether or not you are there without having to enter the house.
【００３８】震災等、非常災害などやその他の理由で生
じた停電の復旧において、需要家が不在の場合には基本
的には給電を保留する措置がとられる。しかし、建物の
外観が健全である等の状況から、給電しても安全と判断
した場合には、配電線が復旧し次第、給電を再開するケ
ースもある。このようなケースにおいて不在需要家の安
全確認に本発明に係る方法及び装置を適用して判断を下
せば、安全性をより確かなものにできることが期待され
る。In the restoration of a power outage caused by an emergency disaster such as an earthquake or other reasons, when the customer is absent, the power supply is basically suspended. However, if it is determined that power supply is safe from the situation such as the appearance of the building being healthy, there are cases where power supply is resumed as soon as the distribution line is restored. In such a case, it is expected that the safety can be made more reliable by applying the method and apparatus according to the present invention to the safety confirmation of the absentee consumer and making a judgment.
【００３９】なお、上述の実施形態は本発明の好適な実
施の一例ではあるがこれに限定されるものではなく、本
発明の要旨を逸脱しない範囲において種々変形実施可能
である。The above-described embodiment is an example of a preferred embodiment of the present invention, but the present invention is not limited to this, and various modifications can be made without departing from the gist of the present invention.
【００４０】例えば、上述の実施形態では、印加電圧の
範囲を０〜４０［Ｖ］としたが、この例に限定されるも
のではなく、測定対象の電気機器群と非測定対象の電気
機器群とを区分けできる範囲であれば良い。また、上述
の実施形態では、印加電圧の変化に対する有効電力と無
効電力の特性に基いて、「ヒータ系電気機器群」、「ラ
ンプ系電気機器群」、「蛍光灯（磁気回路式安定器
型）」、「冷蔵庫等」、「テレビ等（表３中の第ＩＶ分
類に属する電気機器）」にグループ化したが、これに限
定されるものではなく、場合によっては更に厳密に特性
を分析して更に詳細に電気機器を分類するようにしても
良い。同様に、測定対象となる電気機器群は「ヒータ系
電気機器群」、「ランプ系電気機器群」、「蛍光灯（磁
気回路式安定器型）」、「冷蔵庫等」に必ずしも限定さ
れるものではない。For example, although the range of the applied voltage is set to 0 to 40 [V] in the above-mentioned embodiment, the present invention is not limited to this example, and the electric device group to be measured and the electric device group to be non-measured are not limited to this example. It may be any range as long as it can be divided into. Further, in the above-described embodiment, based on the characteristics of the active power and the reactive power with respect to the change in the applied voltage, the "heater system electric device group", the "lamp system electric device group", the "fluorescent lamp (magnetic circuit type ballast type" ) ”,“ Refrigerator, etc. ”,“ TV, etc. (electric equipment belonging to Category IV in Table 3) ”, but is not limited to this, and in some cases, the characteristics may be analyzed more strictly. The electric devices may be classified in more detail. Similarly, the electrical equipment group to be measured is not always limited to "heater electrical equipment group", "lamp electrical equipment group", "fluorescent lamp (magnetic circuit ballast type)", "refrigerator, etc." is not.
【００４１】また、測定対象となる電気機器群毎の消費
電力を推定する方法は、数式１〜数式６を用いたものに
限らず、印加電圧と有効電力と無効電力との間に成立し
得る他の相関関係を用いるものであっても良い。Further, the method of estimating the power consumption of each electric equipment group to be measured is not limited to the one using the equations 1 to 6, but may be established between the applied voltage and the active power and the reactive power. It is also possible to use another correlation.
【００４２】また、測定対象となる電気機器群毎の消費
電力まで算出せず、例えば測定対象となる電気機器群毎
の１００［Ｖ］を印加した時の当該消費電力を表すａ，
ｂ，ｃ，ｄの一部又は全部がゼロか否かのみを判定する
ようにしても良い。この場合、測定対象となる特定の電
気機器群が給電線１３に電気的に接続されているか否か
を非侵入的に判断できる。Further, the power consumption of each electric equipment group to be measured is not calculated, and, for example, the power consumption when 100 [V] of each electric equipment group to be measured is applied, a,
It may be possible to determine whether or not part or all of b, c, and d are zero. In this case, it is possible to non-invasively determine whether or not the specific electric device group to be measured is electrically connected to the power supply line 13.
【００４３】[0043]
【発明の効果】以上の説明から明らかなように、請求項
１記載の電気機器群毎の消費電力推定方法および請求項
４記載の電気機器群毎の消費電力推定装置によると、コ
ンセントに差し込まれたままで給電線に接続されて使用
状態になっている複数の電気機器について、予め分類さ
れた電気機器群毎に消費電力の大きさを簡便に且つ非侵
入的に推定することができる。As is apparent from the above description, according to the power consumption estimating method for each electric equipment group and the power consumption estimating apparatus for each electric equipment group according to claim 4, the method is plugged into an outlet. It is possible to easily and non-intrusively estimate the magnitude of power consumption for each of a plurality of electric devices that are pre-classified with respect to a plurality of electric devices that are still in use and are connected to a power supply line.
【００４４】さらに、請求項２記載の給電線の再接続適
否の判定方法および請求項５記載の給電線の再接続適否
の判定装置によれば、再び給電を開始する際に、家人が
不在で立会いを得られない場合でも、給電線再接続によ
り危険を生ずる可能性のある電気機器、例えば火災の原
因になるような電気コンロや電気ストーブ等や不在電力
需要家（工場等）において再給電を行うと不測の動作に
より危険を生じる可能性のあるロボット等がコンセント
に接続されて使用状態になったままであるか否かを推定
することができるので、再給電後の安全性をより高める
ことができる。本発明はこのような再給電の作業の効率
化と再給電後の安全の確実性を高めるものである。ま
た、閾値を超えた時に再給電中止と判定するようにして
いるので、再給電に関する判断が一律となり、作業員に
よるばらつきがなく適切な判断が下せるようになる。Further, according to the method for determining whether or not the reconnection of the power supply line is appropriate according to the second aspect and the apparatus for determining whether or not the reconnection of the power supply line is appropriate according to the fifth aspect, when the power supply is started again, the housekeeper is absent. Even if it is not possible to witness, resupply power to electric equipment that may cause danger due to reconnection of the power supply line, such as an electric stove or electric stove that causes a fire, or an absent power consumer (factory, etc.). It is possible to estimate whether or not a robot etc. that may cause danger due to unexpected operation is still in use due to being connected to an outlet, so it is possible to further enhance safety after re-powering. it can. The present invention improves the efficiency of such re-feeding work and enhances the certainty of safety after re-feeding. Further, since it is determined that the re-power supply is stopped when the threshold value is exceeded, the determination regarding the re-power supply is uniform, and it is possible to make an appropriate determination without variations among workers.
【００４５】さらに、請求項３記載の給電線の再接続適
否の判定方法および請求項６記載の給電線の再接続適否
の判定装置によれば、不在電力需要家において給電した
ままにしておくと火災の危険を招く恐れのあるヒータ系
電気機器群の消費電力の大きさを推定して、不在電力需
要家の給電線再接続時の安全性を適切に判断することが
できる。Furthermore, according to the method for determining whether or not the reconnection of the power supply line is appropriate according to the third aspect and the apparatus for determining whether or not the reconnection of the power supply line is appropriate according to the sixth aspect, when the absent electric power consumer keeps supplying power. It is possible to estimate the amount of power consumption of the heater electric device group that may cause a fire hazard, and appropriately determine the safety at the time of reconnection of the power supply line for the absent electric power consumer.
【図１】給電線の再接続適否の判定方法及び装置の実施
の一形態を示し、給電線再接続時の安全確認への適用例
の一つを示す概略図である。FIG. 1 is a schematic diagram showing an embodiment of a method and an apparatus for determining suitability for reconnection of a power supply line, and showing one example of application to safety confirmation at the time of reconnection of a power supply line.
【図２】発熱主体の電気機器（電動ポット、コタツラン
プ、クッキングヒータ、アイロン、トースター、電気ス
トーブ）について、停電後の給電を再開する際に印加す
る電圧を０［Ｖ］から徐々に上げていった場合の有効電
力の値を示すグラフである。[Fig. 2] Regarding electric devices mainly for heat generation (electric pots, kotatsu lamps, cooking heaters, irons, toasters, electric stoves), the voltage applied when power supply is restarted after a power failure is gradually increased from 0 [V]. It is a graph which shows the value of active power in the case of turning on.
【図３】発熱主体の電気機器（電動ポット、コタツラン
プ、クッキングヒータ、アイロン、トースター、電気ス
トーブ）について、停電後の給電を再開する際に印加す
る電圧を０［Ｖ］から徐々に上げていった場合の無効電
力の値を示すグラフである。[Fig. 3] Regarding electric devices mainly for heat generation (electric pot, kotatsu lamp, cooking heater, iron, toaster, electric stove), the voltage applied when power supply is restarted after a power failure is gradually increased from 0 [V]. It is a graph which shows the value of the reactive power in the case of.
【図４】照明器具（蛍光灯（磁気回路式安定器型、１０
本）、インバータ蛍光灯（１０本）、白熱灯（５個））
について、停電後の給電を再開する際に印加する電圧を
０［Ｖ］から徐々に上げていった場合の有効電力の値を
示すグラフである。FIG. 4 Lighting equipment (fluorescent lamp (magnetic circuit type ballast type, 10
Book), inverter fluorescent lamp (10 pieces), incandescent lamp (5 pieces))
Is a graph showing the value of active power when the voltage applied when power supply is restarted after a power failure is gradually increased from 0 [V].
【図５】照明器具（蛍光灯（磁気回路式安定器型、１０
本）、インバータ蛍光灯（１０本）、白熱灯（５個））
について、停電後の給電を再開する際に印加する電圧を
０［Ｖ］から徐々に上げていった場合の無効電力の値を
示すグラフである。FIG. 5: Lighting equipment (fluorescent lamp (magnetic circuit type ballast type, 10
Book), inverter fluorescent lamp (10 pieces), incandescent lamp (5 pieces))
Is a graph showing the value of the reactive power when the voltage applied when resuming the power supply after the power failure is gradually increased from 0 [V].
【図６】その他の電気機器（ＩＨジャー炊飯器（炊飯モ
ード）、テレビ）について、停電後の給電を再開する際
に印加する電圧を０［Ｖ］から徐々に上げていった場合
の有効電力の値を示すグラフである。[FIG. 6] Active power when other electric devices (IH jar rice cooker (rice cooker mode), TV) gradually increase the voltage applied from 0 [V] when power supply is restarted after a power failure It is a graph which shows the value of.
【図７】その他の電気機器（ＩＨジャー炊飯器（炊飯モ
ード）、テレビ）について、停電後の給電を再開する際
に印加する電圧を０［Ｖ］から徐々に上げていった場合
の無効電力の値を示すグラフである。[Fig. 7] Reactive power when other electric devices (IH jar rice cooker (rice cooker mode), TV) gradually increase the voltage applied from 0 [V] when power supply is restarted after a power failure It is a graph which shows the value of.
【図８】ヒータ系電気機器群（クッキングヒータ、オー
ブントースター、スチームアイロン、クッキングヒー
タ）とランプ系電気機器群（白熱灯、コタツランプ）に
ついて、印加電圧に対応する有効電力を、印加電圧１０
０［Ｖ］の時の値を１００％とした百分率で表示したグ
ラフである。FIG. 8 shows the effective electric power corresponding to the applied voltage and the applied voltage 10 with respect to the heater electric equipment group (cooking heater, oven toaster, steam iron, cooking heater) and the lamp electric equipment group (incandescent lamp, kotatsu lamp).
It is a graph displayed as a percentage with the value at 0 [V] as 100%.
【図９】冷蔵庫について、印加電圧に対応する有効電力
を、印加電圧１００［Ｖ］の時の値を１００％とした百
分率で表示したグラフである。FIG. 9 is a graph showing the active power corresponding to the applied voltage in the refrigerator as a percentage with the value when the applied voltage is 100 [V] being 100%.
【図１０】蛍光灯（磁気回路式安定器型、１０本）と冷
蔵庫について、印加電圧に対応する無効電力を、印加電
圧１００［Ｖ］の時の値（蛍光灯については、０〜８０
［Ｖ］の曲線を１００［Ｖ］までスムースに延長して求
めた値）を１００％とした百分率で表示したグラフであ
る。FIG. 10 shows the reactive power corresponding to the applied voltage for a fluorescent lamp (10 ballast type magnetic circuit type) and a refrigerator when the applied voltage is 100 [V] (0 to 80 for the fluorescent lamp).
It is a graph displayed as a percentage with a value obtained by smoothly extending the curve of [V] to 100 [V] as 100%.
【図１１】電気機器群毎の消費電力推定装置および給電
線の再接続適否の判定装置の一例を示す概略ブロック図
である。FIG. 11 is a schematic block diagram showing an example of a power consumption estimation device and a power supply line reconnection suitability determination device for each electric device group.
１ 給電線の再接続適否の判定装置 ２ 電気機器群毎の消費電力推定装置 ３ 判定手段 ４ 電圧調整手段 ５ 電力測定手段 ６ 消費電力推定手段 ７ 記憶手段 1 Reconnecting suitability determination device for power lines 2 Power consumption estimation device for each electrical equipment group 3 Judgment means 4 Voltage adjustment means 5 Power measurement means 6 Power consumption estimation means 7 storage means
Claims (6)
電力の特性に基いてグループ化された電気機器群のうち
測定対象となる電気機器群について印加電圧と有効電力
と無効電力との間に成立する相関関係を予め求めてお
き、非測定対象である電気機器群の動作電圧より低い範
囲で給電線に印加する電圧を変化させて、前記給電線に
おける総負荷電力の有効電力と無効電力とを測定し、当
該測定された有効電力及び無効電力と前記予め求めてお
いた相関関係とから、前記測定対象となる電気機器群毎
の消費電力を推定することを特徴とする電気機器群毎の
消費電力推定方法。1. An electric equipment group to be measured among electric equipment groups that are grouped based on the characteristics of active power and reactive power with respect to changes in applied voltage, is established between applied voltage, active power, and reactive power. Is obtained in advance, the voltage applied to the power supply line is changed in a range lower than the operating voltage of the electrical equipment group that is not the measurement target, and the active power and the reactive power of the total load power in the power supply line are calculated. The consumption of each electric equipment group characterized by estimating the power consumption of each electric equipment group to be measured from the measured active power and reactive power and the previously obtained correlation. Power estimation method.
電力の特性に基いてグループ化された電気機器群のうち
測定対象となる電気機器群について印加電圧と有効電力
と無効電力との間に成立する相関関係を予め求めてお
き、給電線再接続時に、非測定対象である電気機器群の
動作電圧より低い範囲で給電線に印加する電圧を変化さ
せて、前記給電線における総負荷電力の有効電力と無効
電力とを測定し、当該測定された有効電力及び無効電力
と前記予め求めておいた相関関係とから、給電線再接続
により危険を生ずる可能性のある電気機器が属する電気
機器群の消費電力を推定し、当該推定された消費電力が
閾値を超えた時に不在の電力需要家への再給電作業を中
止と判定することを特徴とする給電線の再接続適否の判
定方法。2. An electric equipment group to be measured out of an electric equipment group that is grouped based on the characteristics of active power and reactive power with respect to changes in applied voltage, is established between the applied voltage, active power, and reactive power. When the power supply line is reconnected, the voltage applied to the power supply line is changed in the range lower than the operating voltage of the non-measurement target electric equipment group to determine the effective total load power of the power supply line. Electric power and reactive power are measured, and from the measured active power and reactive power and the previously determined correlation, the electric device group to which the electric device that may cause a danger due to reconnection of the feeder line belongs to A method for determining suitability for reconnection of a power supply line, which comprises estimating power consumption, and determining that the repowering work for an absent power consumer is stopped when the estimated power consumption exceeds a threshold value.
電力の特性に基いてグループ化された電気機器群のうち
測定対象となる電気機器群について印加電圧と有効電力
と無効電力との間に成立する相関関係を予め求めてお
き、給電線再接続時に、非測定対象である電気機器群の
動作電圧より低い範囲で給電線に印加する電圧を変化さ
せて、前記給電線における総負荷電力の有効電力と無効
電力とを測定し、当該測定された有効電力及び無効電力
と前記相関関係とから、ヒータ系電気機器群の消費電力
を推定し、前記ヒータ系電気機器群の消費電力が閾値を
超えた時に不在の電力需要家への再給電作業を中止と判
定することを特徴とする給電線の再接続適否の判定方
法。3. An electric equipment group to be measured among electric equipment groups that are grouped based on the characteristics of active power and reactive power with respect to changes in applied voltage, is established between the applied voltage, active power, and reactive power. When the power supply line is reconnected, the voltage applied to the power supply line is changed in the range lower than the operating voltage of the non-measurement target electric equipment group to determine the effective total load power of the power supply line. Electric power and reactive power are measured, and from the measured active power and reactive power and the correlation, the power consumption of the heater system electric device group is estimated, and the power consumption of the heater system electric device group exceeds a threshold value. A method for determining the suitability of reconnection of a power supply line, characterized in that it is determined that the re-power supply work to an absent electric power consumer is stopped when the power supply line is absent.
電力の特性に基いてグループ化された電気機器群のうち
測定対象となる電気機器群について印加電圧と有効電力
と無効電力との間に成立する予め求められた相関関係を
記憶する手段と、非測定対象である電気機器群の動作電
圧より低い範囲で給電線に印加する電圧を変化させる手
段と、前記給電線における総負荷電力の有効電力と無効
電力とを測定する手段と、当該測定された有効電力及び
無効電力と前記予め求められた相関関係とから、前記測
定対象となる電気機器群毎の消費電力を推定する手段と
を備えることを特徴とする電気機器群毎の消費電力推定
装置。4. An electric equipment group to be measured out of an electric equipment group that is grouped based on the characteristics of active power and reactive power with respect to changes in applied voltage, is established between the applied voltage, active power, and reactive power. Means for storing the previously determined correlation, means for changing the voltage applied to the power supply line in a range lower than the operating voltage of the non-measurement target electrical equipment group, and effective power of the total load power in the power supply line And a means for measuring the reactive power, and means for estimating the power consumption for each electrical device group to be measured from the measured active power and reactive power and the previously obtained correlation. A power consumption estimation device for each electric device group.
電力の特性に基いてグループ化された電気機器群のうち
測定対象となる電気機器群について印加電圧と有効電力
と無効電力との間に成立する予め求められた相関関係を
記憶する手段と、非測定対象である電気機器群の動作電
圧より低い範囲で給電線に印加する電圧を変化させる手
段と、前記給電線における総負荷電力の有効電力と無効
電力とを測定する手段と、当該測定された有効電力及び
無効電力と前記予め求められた相関関係とから、給電線
再接続により危険を生ずる可能性のある電気機器が属す
る電気機器群の消費電力を推定する手段と、当該推定さ
れた消費電力が閾値を超えた時に不在の電力需要家への
再給電作業を中止と判定する手段とを備えることを特徴
とする給電線の再接続適否の判定装置。5. An electric equipment group to be measured among electric equipment groups that are grouped based on the characteristics of active power and reactive power with respect to changes in applied voltage, is established between the applied voltage, active power, and reactive power. Means for storing the previously determined correlation, means for changing the voltage applied to the power supply line in a range lower than the operating voltage of the non-measurement target electrical equipment group, and effective power of the total load power in the power supply line And a means for measuring the reactive power, and the measured active power and reactive power and the previously obtained correlation, from the electrical equipment group to which the electrical equipment that may cause danger due to reconnection of the power supply line Reconnecting the power supply line, comprising means for estimating the power consumption and means for determining that the repowering work to the absent power consumer is stopped when the estimated power consumption exceeds a threshold value. Continuity suitability determination device.
電力の特性に基いてグループ化された電気機器群のうち
測定対象となる電気機器群について印加電圧と有効電力
と無効電力との間に成立する予め求められた相関関係を
記憶する手段と、非測定対象である電気機器群の動作電
圧より低い範囲で給電線に印加する電圧を変化させる手
段と、前記給電線における総負荷電力の有効電力と無効
電力とを測定する手段と、当該測定された有効電力及び
無効電力と前記予め求められた相関関係とから、ヒータ
系電気機器群の消費電力を推定する手段と、前記ヒータ
系電気機器群の消費電力が閾値を超えた時に不在の電力
需要家への再給電作業を中止と判定する手段とを備える
ことを特徴とする給電線の再接続適否の判定装置。6. An electric equipment group to be measured out of an electric equipment group that is grouped based on the characteristics of active power and reactive power with respect to changes in applied voltage, is established between the applied voltage, active power, and reactive power. Means for storing the previously determined correlation, means for changing the voltage applied to the power supply line in a range lower than the operating voltage of the non-measurement target electrical equipment group, and effective power of the total load power in the power supply line And means for measuring the reactive power, means for estimating the power consumption of the heater system electric device group from the measured active power and reactive power and the previously obtained correlation, and the heater system electric device group. And a means for determining that the re-feeding work to an absent electric power consumer is stopped when the power consumption of the power supply exceeds a threshold value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001303335A JP3701596B2 (en) | 2001-09-28 | 2001-09-28 | Method and apparatus for estimating power consumption for each group of electrical equipment, and method and apparatus for determining whether or not to reconnect feeder lines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001303335A JP3701596B2 (en) | 2001-09-28 | 2001-09-28 | Method and apparatus for estimating power consumption for each group of electrical equipment, and method and apparatus for determining whether or not to reconnect feeder lines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003111277A true JP2003111277A (en) | 2003-04-11 |
| JP3701596B2 JP3701596B2 (en) | 2005-09-28 |
Family
ID=19123433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001303335A Expired - Fee Related JP3701596B2 (en) | 2001-09-28 | 2001-09-28 | Method and apparatus for estimating power consumption for each group of electrical equipment, and method and apparatus for determining whether or not to reconnect feeder lines |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3701596B2 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004340852A (en) * | 2003-05-19 | 2004-12-02 | Central Res Inst Of Electric Power Ind | Operation state estimating method of electrical equipment and monitoring system of electric equipment |
| JP2005160130A (en) * | 2003-11-20 | 2005-06-16 | Central Res Inst Of Electric Power Ind | Harmonic signal generator, method and system for estimating operational condition of specific electric apparatus using it, and system for confirming safety of electric power consumer resident |
| JP2010017033A (en) * | 2008-07-04 | 2010-01-21 | Kyushu Electric Power Co Inc | Plug receptacle |
| JP2012168918A (en) * | 2011-06-17 | 2012-09-06 | Kazuaki NEBU | Energy consumption monitoring system, method, and computer program |
| JP2014110679A (en) * | 2012-11-30 | 2014-06-12 | Mitsubishi Electric Corp | Power consumption estimation system, power consumption estimation method, and program |
| WO2014184957A1 (en) * | 2013-05-17 | 2014-11-20 | 三菱電機株式会社 | Discrimination system, home energy management system, discrimination method, and program |
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2001
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004340852A (en) * | 2003-05-19 | 2004-12-02 | Central Res Inst Of Electric Power Ind | Operation state estimating method of electrical equipment and monitoring system of electric equipment |
| JP2005160130A (en) * | 2003-11-20 | 2005-06-16 | Central Res Inst Of Electric Power Ind | Harmonic signal generator, method and system for estimating operational condition of specific electric apparatus using it, and system for confirming safety of electric power consumer resident |
| JP2010017033A (en) * | 2008-07-04 | 2010-01-21 | Kyushu Electric Power Co Inc | Plug receptacle |
| JP2012168918A (en) * | 2011-06-17 | 2012-09-06 | Kazuaki NEBU | Energy consumption monitoring system, method, and computer program |
| JP2014110679A (en) * | 2012-11-30 | 2014-06-12 | Mitsubishi Electric Corp | Power consumption estimation system, power consumption estimation method, and program |
| WO2014184957A1 (en) * | 2013-05-17 | 2014-11-20 | 三菱電機株式会社 | Discrimination system, home energy management system, discrimination method, and program |
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| JP2016532196A (en) * | 2013-08-12 | 2016-10-13 | エンコアード テクノロジーズ インク | Energy information providing apparatus and system |
| WO2015079562A1 (en) * | 2013-11-29 | 2015-06-04 | 株式会社 東芝 | Electronic device and inter-electronic device power supply control method |
| KR20150102550A (en) * | 2014-02-28 | 2015-09-07 | 엘지전자 주식회사 | Facility control system, central control apparatus of the system and facility control method |
| KR102137021B1 (en) * | 2014-02-28 | 2020-08-13 | 엘지전자 주식회사 | Facility control system, central control apparatus of the system and facility control method |
| JP2017099237A (en) * | 2015-11-27 | 2017-06-01 | 日本電信電話株式会社 | Electrical apparatus identification system and electrical apparatus identification method |
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