JP4130134B2 - Device for calculating power consumption per unit time for each operation mode of equipment in facility and device for calculating power consumption of equipment in facility - Google Patents

Device for calculating power consumption per unit time for each operation mode of equipment in facility and device for calculating power consumption of equipment in facility Download PDF

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Publication number
JP4130134B2
JP4130134B2 JP2003049881A JP2003049881A JP4130134B2 JP 4130134 B2 JP4130134 B2 JP 4130134B2 JP 2003049881 A JP2003049881 A JP 2003049881A JP 2003049881 A JP2003049881 A JP 2003049881A JP 4130134 B2 JP4130134 B2 JP 4130134B2
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Prior art keywords
power consumption
facility
operation mode
predetermined time
equipment
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JP2004257897A (en
Inventor
吉伸 中村
芳男 小澤
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Sanyo Electric Co Ltd
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Sanyo Electric Co Ltd
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Description

【0001】
【発明の属する技術分野】
この発明は、施設内機器の各運転モード毎の単位時間当たりの消費電力量算出装置および施設内機器の消費電力量算出装置に関する。
【0002】
【従来の技術】
スーパー等の店舗、コインランドリー等の施設において、省エネを目的とした電力管理を行う場合には、その内部に設置されている消費電力の大きい多数の機器に関して、個別に使用電力を測定する必要がある。
【0003】
しかしながら、計測の容易性や機器単体での電力使用量が少ないこと等から、配電盤で全体の電力計測が行われたり、あるいは系統別の電力計測が行われたりしているのが一般的である。
【0004】
【発明が解決しようとする課題】
【0005】
この発明は、簡易な方法で施設内の各機器の電力使用量を推定することができるようになる施設内機器の各運転モード毎の単位時間当たりの消費電力量算出装置および施設内機器の消費電力量算出装置を提供することを目的とする。
【0006】
【課題を解決するための手段】
請求項1に記載の発明は、施設内機器の各運転モード毎の単位時間当たりの消費電力量算出装置において、所定時間単位毎に、所定時間単位における各機器の消費電力量の総和を測定する第1手段、所定時間単位毎に各機器毎に、当該所定時間単位内における運転モード別の運転時間を算出する第2手段、ならびに複数回分の第1手段による測定結果および第2手段の算出結果をもとにして、各機器毎の運転モード別の単位時間当たりの消費電力量を、行列演算を用いて求める第3手段を備えていることを特徴とする。
【0007】
請求項2に記載の発明は、施設内機器の消費電力量算出装置において、所定時間単位毎に、所定時間単位における各機器の消費電力量の総和を測定する第1手段、所定時間単位毎に各機器毎に、当該所定時間単位内における運転モード別の運転時間を算出する第2手段、ならびに複数回分の第1手段による測定結果および第2手段の算出結果をもとにして、各機器毎の運転モード別の単位時間当たりの消費電力量を、行列演算を用いて求める第3手段、第3手段によって求められた各機器毎の運転モード別の単位時間当たりの消費電力量と、第2手段の算出結果とに基づいて、各機器毎の上記所定時間単位内における消費電力量を算出する第4手段を備えていることを特徴とする。
【0008】
【発明の実施の形態】
以下、図面を参照して、この発明の実施の形態について説明する。
【0009】
図1は、スーパーマーケット等の店舗、コインランドリーなどの施設に設けられた施設内電気機器システムを示している。
【0010】
分電盤100からの電力は、複数の系統A、Bに分配されている。この例では、系統Aには、空調機(室外機)11と3つの空調機(室内機)12、13、14とが接続されている。系統Bには、第1のショーケース群21と第2のショーケース群22と、冷凍機23とが接続されている。冷凍機23は、2台のコンプレッサ(C1、C2)を有している。
【0011】
空調機(室外機)11の運転モードには、図2(a)に示すように、停止モード(OFF)、冷房の低能力モード、冷房の中能力モード、冷房の高能力モード、暖房の低能力モード、暖房の中能力モードおよび暖房の高能力モードがある。
【0012】
空調機(室内機)12、13、14の運転モードには、図2(b)に示すように、停止モード(OFF)、弱風モード、中風モードおよび強風モードがある。
【0013】
第1のショーケース群21と第2のショーケース群22とに含まれるショーケースの運転モードには、図2(c)に示すように、通常モードおよび霜取りモードがある。霜取りは、各ショーケース群21、22毎に時分割して行われる。例えば、第1のショーケース群21内のショーケースに対して13:00から霜取りを開始した場合、庫内温度が上限になるか、あるいは最大霜取り時間が経過するまで、第1のショーケース群21の霜取りが実施される。
【0014】
冷凍機23の運転モードには、図2(d)に示すように、停止モード(OFF)、第1のコンプレッサC1のみが作動しているC1作動モード、第2のコンプレッサC2のみが作動しているC2作動モードおよび両方のコンプレッサC1、C2が作動しているC1、C2作動モードがある。
【0015】
各機器の運転モード(運転状態)に関する情報は、各機器に設けられたコントローラ(図示略)に接続された施設内統合コントローラ200によって、短いサンプリング間隔で収集されている。また、施設内統合コントローラ200は、分電盤100から、所定時間単位(30分)毎の各系統の合計消費電力量を計測・収集している。
【0016】
ところで、所定時間単位(30分)毎の各機器(機器群)の消費電力量は、各機器(機器群)の各運転モード毎の1分間当たり(単位時間当たり)の消費電力量が分かれば、所定時間単位(30分)内での各機器(機器群)の運転モードに関する情報に基づいて算出することが可能となる。
【0017】
この実施の形態では、図4に示すように、施設内統合コントローラ100は、所定時間単位(30分)毎に分電盤200から得られた各系統の合計消費電力量と、各所定時間単位において収集された所定時間単位内での各機器(機器群)の運転モードに関する情報をもとにして、各機器(機器群)の各運転モード毎の1分単位の電力消費量を、行列演算(重回帰分析)を用いて算出する(図4 ステップ1)。そして、得られた各機器(機器群)の各運転モード毎の1分単位の電力消費量と、各機器(機器群)の運転モードに関する情報とに基づいて、各機器(機器群)の所定時間単位(30分)毎の電力消費量を算出する(図4 ステップ2)。
【0018】
以下、各機器(機器群)の各運転モード毎の1分間当たりの消費電力量を算出する方法について、説明する。
【0019】
ここでは、説明の便宜上、図3に示すように、系統Aには空調機(室内機)12のみが接続され、系統Bにはショーケース群21のみが接続されている場合を想定する。
【0020】
(1)空調機(室内機)12およびショーケース群21について、所定時間単位(30分)内での各運転モードに関する情報に基づいて、空調機(室内機)12およびショーケース群21毎に、各運転モード別の運転時間を求める。また、分電盤100から得られた各系統毎の上記所定時間単位(30分)での消費電力量の和(以下、トータル測定電力量という)、つまり、上記所定時間単位(30分)での空調機(室内機)12およびショーケース群21の消費電力量の総和を求める。
【0021】
このような動作を、所定時間単位毎に繰り返し行う。
【0022】
表1は、所定時間単位毎に得られた、空調機(室内機)12およびショーケース群21の各運転モード別の運転時間と、トータル測定電力量を示している。
【0023】
【表1】

Figure 0004130134
【0024】
表1において、各記号の意味は、次の通りである。
【0025】
Ni:iで特定される所定時間単位(30分)中にショーケース群21の運転モードが冷却モード(N)であった時間
Di:iで特定される所定時間単位(30分)中にショーケース群21の運転モードが霜取りモード(D)であった時間
Li:iで特定される所定時間単位(30分)中に空調機12の運転モードが弱風モード(L)であった時間
Mi:iで特定される所定時間単位(30分)中に空調機12の運転モードが中風モード(M)であった時間
Hi:iで特定される所定時間単位(30分)中に空調機12の運転モードが強風モード(H)であった時間
i :iで特定される所定時間単位(30分)中のトータル測定電力量
【0026】
(2)ショーケース群21および空調機(室内機)12およびそれぞれの各運転モード毎の1分間当たりの消費電力量を未知数WN 、WD 、WL 、WM 、WH とする。
【0027】
N :ショーケース群21が冷却モード(N)で運転されている場合の1分間当たりの消費電力量
D :ショーケース群21が霜取りモード(D)で運転されている場合の1分間当たりの消費電力量
L :空調機(室内機)12が弱風モード(L)で運転されている場合の1分間当たりの消費電力量
M :空調機(室内機)12が中風モード(M)で運転されている場合の1分間当たりの消費電力量
H :空調機(室内機)12が強風モード(H)で運転されている場合の1分間当たりの消費電力量
【0028】
ショーケース群21および空調機(室内機)12それぞれの各運転モード毎の1分間当たりの消費電力量を未知数WN 、WD 、WL 、WM 、WH とすると、次式(1)の関係式が成り立つ。
【0029】
【数1】
Figure 0004130134
【0030】
各所定時間単位毎に得られたデータ(表1参照)毎に、上記式(1)の関係式が得られるので、得られた複数の関係式をもとにして、未知数WN 、WD 、WL 、WM 、WH を行列演算(重回帰分析)によって求める。
【0031】
つまり、次式(2)の関係式が成り立つ。
【0032】
【数2】
Figure 0004130134
【0033】
上記式(2)において、各記号の意味は、次の通りである。
【0034】
2 N :xN の分散
2 D :xD の分散
2 L :xL の分散
2 M :xM の分散
2 H :xH の分散
Sab :aとbとの共分散(例えば、SxN D は、xN とxD との共分散)
【0035】
したがって、次式(3)に基づいて、未知数WN 、WD 、WL 、WM 、WH を求めることができる。
【0036】
【数3】
Figure 0004130134
【0037】
以下、具体例について説明する。
【0038】
表2は、所定時間単位毎に得られた、空調機(室内機)12およびショーケース群21の各運転モード別の運転時間と、トータル測定電力量の具体例を示している。
【0039】
【表2】
Figure 0004130134
【0040】
ショーケース群21および空調機(室内機)12それぞれの各運転モード毎の1分間当たりの消費電力量をWN 、WD 、WL 、WM 、WH とすると、上記式(2)に基づいて、表2から次式(4)の関係式が成り立つ。
【0041】
【数4】
Figure 0004130134
【0042】
また、上記式(3)に基づいて、WN 、WD 、WL 、WM 、WH は、次式(5)式で表される。
【0043】
【数5】
Figure 0004130134
【0044】
上記式(5)を解くと、WN 、WD 、WL 、WM 、WH は、次のようになる。
N =4.93737≒4.9
D =12.03131≒12.0
L =10.01356≒10.0
M =14.82631≒14.8
H =20.09134≒20.1
【0045】
得られたWN 、WD 、WL 、WM 、WH と、ショーケース群21および空調機(室内機)12それぞれの上記各所定時間単位の各運転モード毎の動作時間との積算から各運転モード毎の推定消費電力量を求めると、表3のようになる。
【0046】
【表3】
Figure 0004130134
【0047】
表3から、ショーケース群21および空調機(室内機)12それぞれの上記各所定時間単位の推定消費電力量を、各運転モード毎の推定消費電力量の和算により求める。
【0048】
【発明の効果】
この発明によれば、簡易な方法で施設内の各機器の電力使用量を推定することができるようになる施設内機器の各運転モード毎の単位時間当たりの消費電力量算出装置および施設内機器の消費電力量算出装置が実現する。
【図面の簡単な説明】
【図1】施設内電気機器システムの構成を示すブロック図である。
【図2】各機器の運転モードの種類を説明するための説明図である。
【図3】各機器(機器群)の各運転モード毎の1分間当たりの消費電力量を算出する方法を説明するために想定した施設内電気機器システムの構成を示すブロック図である。
【図4】各機器(機器群)の所定時間(30分)毎の電力消費量の算出方法を示すフローチャートである。
【符号の説明】
11 空調機(室外機)
12〜13 空調機(室内機)
21、22 ショーケース群
23 冷凍機
100 分電盤
200 施設内統合コントローラ[0001]
BACKGROUND OF THE INVENTION
This invention relates to power consumption calculation device power consumption calculation device and facility equipment per unit time of each operation mode of the facility in the device.
[0002]
[Prior art]
When power management for the purpose of energy saving is performed in stores such as supermarkets and coin laundry facilities, it is necessary to individually measure the power consumption of many devices with large power consumption installed in them. .
[0003]
However, due to the ease of measurement and the small amount of power used by a single device, it is common to measure the overall power on the switchboard or to measure the power by system. .
[0004]
[Problems to be solved by the invention]
[0005]
The present invention provides an apparatus for calculating power consumption per unit time for each operation mode of equipment in a facility and the consumption of equipment in the facility, so that the power consumption of each equipment in the facility can be estimated by a simple method. An object of the present invention is to provide an electric energy calculation device .
[0006]
[Means for Solving the Problems]
According to the first aspect of the present invention, in the power consumption calculation device per unit time for each operation mode of the equipment in the facility, the total power consumption of each device in a predetermined time unit is measured for each predetermined time unit. first means, at every predetermined time unit, for each device, the calculation of the second means, and measurement results by a plurality of times of the first means and second means for calculating the operating mode-specific operating time in the predetermined time in the unit Based on the results, there is provided a third means for obtaining a power consumption per unit time for each device by operation mode using a matrix operation.
[0007]
According to a second aspect of the present invention, in the power consumption calculation device for equipment in a facility, a first means for measuring a total sum of power consumption of each device in a predetermined time unit for each predetermined time unit, for each predetermined time unit , For each device , based on the second means for calculating the operation time for each operation mode within the predetermined time unit, and the measurement results of the first means for a plurality of times and the calculation results of the second means, The third means for obtaining the power consumption per unit time for each operation mode using a matrix operation, the power consumption per unit time for each operation mode obtained by the third means, A fourth means for calculating the power consumption amount within the predetermined time unit for each device based on the calculation results of the two means is provided.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0009]
FIG. 1 shows an in-facility electrical device system provided in a store such as a supermarket or a facility such as a coin laundry.
[0010]
The electric power from the distribution board 100 is distributed to a plurality of systems A and B. In this example, an air conditioner (outdoor unit) 11 and three air conditioners (indoor units) 12, 13, and 14 are connected to the system A. A first showcase group 21, a second showcase group 22, and a refrigerator 23 are connected to the system B. The refrigerator 23 has two compressors (C1, C2).
[0011]
As shown in FIG. 2A, the operation mode of the air conditioner (outdoor unit) 11 includes a stop mode (OFF), a cooling low capacity mode, a cooling medium capacity mode, a cooling high capacity mode, and a low heating mode. There are capacity mode, medium capacity mode of heating and high capacity mode of heating.
[0012]
As shown in FIG. 2B, the operation modes of the air conditioners (indoor units) 12, 13, and 14 include a stop mode (OFF), a low wind mode, a medium wind mode, and a strong wind mode.
[0013]
As shown in FIG. 2C, the operation modes of the showcases included in the first showcase group 21 and the second showcase group 22 include a normal mode and a defrosting mode. Defrosting is performed in a time-sharing manner for each showcase group 21, 22. For example, when defrosting is started from 13:00 on the showcases in the first showcase group 21, the first showcase group until the internal temperature reaches the upper limit or the maximum defrost time has elapsed. 21 defrosting is carried out.
[0014]
As shown in FIG. 2D, the operation mode of the refrigerator 23 includes a stop mode (OFF), a C1 operation mode in which only the first compressor C1 is operating, and only a second compressor C2 in operation. There are C2 operating modes and C1, C2 operating modes in which both compressors C1, C2 are operating.
[0015]
Information on the operation mode (operation state) of each device is collected at a short sampling interval by the in-facility integrated controller 200 connected to a controller (not shown) provided in each device. Further, the in-facility integrated controller 200 measures and collects the total power consumption of each system from the distribution board 100 every predetermined time unit (30 minutes).
[0016]
By the way, if the power consumption amount of each device (device group) per predetermined time unit (30 minutes) is known, the power consumption amount per minute (per unit time) for each operation mode of each device (device group) is known. It becomes possible to calculate based on information regarding the operation mode of each device (device group) within a predetermined time unit (30 minutes).
[0017]
In this embodiment, as shown in FIG. 4, the in-facility integrated controller 100 includes the total power consumption of each system obtained from the distribution board 200 every predetermined time unit (30 minutes) and each predetermined time unit. Based on the information about the operation mode of each device (device group) collected within a predetermined time unit collected in step 1, the power consumption in units of 1 minute for each operation mode of each device (device group) is matrix-calculated (Multiple regression analysis) is used for calculation (step 1 in FIG. 4). Then, based on the obtained power consumption per minute for each operation mode of each device (device group) and information on the operation mode of each device (device group), the predetermined of each device (device group) is determined. The power consumption for each time unit (30 minutes) is calculated (step 2 in FIG. 4).
[0018]
Hereinafter, a method for calculating the power consumption per minute for each operation mode of each device (device group) will be described.
[0019]
Here, for convenience of explanation, as shown in FIG. 3, it is assumed that only the air conditioner (indoor unit) 12 is connected to the system A and only the showcase group 21 is connected to the system B.
[0020]
(1) For the air conditioner (indoor unit) 12 and the showcase group 21, for each air conditioner (indoor unit) 12 and the showcase group 21, based on information about each operation mode within a predetermined time unit (30 minutes). The operation time for each operation mode is obtained. Further, the sum of power consumption in the predetermined time unit (30 minutes) for each system obtained from the distribution board 100 (hereinafter referred to as total measured power amount), that is, in the predetermined time unit (30 minutes). The total amount of power consumption of the air conditioner (indoor unit) 12 and the showcase group 21 is obtained.
[0021]
Such an operation is repeated every predetermined time unit.
[0022]
Table 1 shows the operation time and the total measured power amount for each operation mode of the air conditioner (indoor unit) 12 and the showcase group 21 obtained for each predetermined time unit.
[0023]
[Table 1]
Figure 0004130134
[0024]
In Table 1, the meaning of each symbol is as follows.
[0025]
x Ni: predetermined time unit specified by i (30 min) time mode of operation of the showcase group 21 was cooling mode (N) in x Di: a predetermined time unit (30 min) specified by i in During the predetermined time unit (30 minutes) specified by the time x Li : i when the operation mode of the showcase group 21 was the defrosting mode (D), the operation mode of the air conditioner 12 was the low wind mode (L). time x Mi: i at time operation mode of the air conditioner 12 in a predetermined time unit (30 min) specified was paralytic mode (M) x Hi: predetermined time unit (30 min) specified by i Time y i during which the operation mode of the air conditioner 12 was the strong wind mode (H): Total measured electric energy during a predetermined time unit (30 minutes) specified by i
(2) Let the unknowns W N , W D , W L , W M , and W H be the power consumption per minute for the showcase group 21, the air conditioner (indoor unit) 12, and each operation mode.
[0027]
W N : Power consumption per minute when the showcase group 21 is operated in the cooling mode (N) W D : Per minute when the showcase group 21 is operated in the defrost mode (D) Power consumption W L : power consumption per minute when the air conditioner (indoor unit) 12 is operated in the low wind mode (L) W M : air conditioner (indoor unit) 12 is in the medium wind mode (M Energy consumption per minute in the case of being operated in) W H: Energy consumption per minute when the air conditioner (indoor unit) 12 is operated in the strong wind mode (H) the
Assuming that the power consumption per minute for each operation mode of the showcase group 21 and the air conditioner (indoor unit) 12 is unknown numbers W N , W D , W L , W M , W H , the following equation (1) The following relational expression holds.
[0029]
[Expression 1]
Figure 0004130134
[0030]
Since the relational expression of the above formula (1) is obtained for each data (see Table 1) obtained for each predetermined time unit, the unknowns W N , W D are obtained based on the obtained plural relational expressions. , W L , W M , and W H are obtained by matrix operation (multiple regression analysis).
[0031]
That is, the following relational expression (2) holds.
[0032]
[Expression 2]
Figure 0004130134
[0033]
In the above formula (2), the meaning of each symbol is as follows.
[0034]
S 2 x N : x N dispersion S 2 x D : x D dispersion S 2 x L : x L dispersion S 2 x M : x M dispersion S 2 x H : x H dispersion Sab: a and b (For example, Sx N x D is the covariance of x N and x D )
[0035]
Therefore, unknowns W N , W D , W L , W M , and W H can be obtained based on the following equation (3).
[0036]
[Equation 3]
Figure 0004130134
[0037]
Hereinafter, specific examples will be described.
[0038]
Table 2 shows specific examples of the operation time and the total measured electric energy for each operation mode of the air conditioner (indoor unit) 12 and the showcase group 21 obtained for each predetermined time unit.
[0039]
[Table 2]
Figure 0004130134
[0040]
When the power consumption per minute for each operation mode of each of the showcase group 21 and the air conditioner (indoor unit) 12 is W N , W D , W L , W M , W H , Based on Table 2, the following relational expression (4) is established.
[0041]
[Expression 4]
Figure 0004130134
[0042]
Based on the above formula (3), W N , W D , W L , W M , and W H are expressed by the following formula (5).
[0043]
[Equation 5]
Figure 0004130134
[0044]
Solving the above equation (5), W N , W D , W L , W M , and W H are as follows.
W N = 4.993737≈4.9
W D = 12.03131 ≒ 12.0
W L = 10.01356≈10.0
W M = 14.82631≈14.8
W H = 20.09134≈20.1
[0045]
From the integration of the obtained W N , W D , W L , W M , W H and the operation time for each operation mode of each predetermined time unit of the showcase group 21 and the air conditioner (indoor unit) 12 respectively. Table 3 shows the estimated power consumption for each operation mode.
[0046]
[Table 3]
Figure 0004130134
[0047]
From Table 3, the estimated power consumption for each predetermined time unit for each of the showcase group 21 and the air conditioner (indoor unit) 12 is obtained by summing the estimated power consumption for each operation mode.
[0048]
【The invention's effect】
According to the present invention, an apparatus for calculating power consumption per unit time for each operation mode of equipment in a facility and equipment in the facility that can estimate the power consumption of each equipment in the facility by a simple method. power consumption calculation apparatus is realized.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of an in-facility electrical device system.
FIG. 2 is an explanatory diagram for explaining types of operation modes of each device;
FIG. 3 is a block diagram showing a configuration of an in-facility electrical device system assumed to explain a method of calculating a power consumption per minute for each operation mode of each device (device group).
FIG. 4 is a flowchart showing a method of calculating power consumption for each predetermined time (30 minutes) of each device (device group).
[Explanation of symbols]
11 Air conditioner (outdoor unit)
12-13 Air conditioner (indoor unit)
21, 22 Showcase group 23 Refrigerator 100 Distribution board 200 Facility integrated controller

Claims (2)

施設内機器の各運転モード毎の単位時間当たりの消費電力量算出装置において、
所定時間単位毎に、所定時間単位における各機器の消費電力量の総和を測定する第1手段、
所定時間単位毎に各機器毎に、当該所定時間単位内における運転モード別の運転時間を算出する第2手段、ならびに
複数回分の第1手段による測定結果および第2手段の算出結果をもとにして、各機器毎の運転モード別の単位時間当たりの消費電力量を、行列演算を用いて求める第3手段、
を備えていることを特徴とする施設内機器の各運転モード毎の単位時間当たりの消費電力量算出装置
In the power consumption calculation device per unit time for each operation mode of equipment in the facility,
A first means for measuring the total power consumption of each device in a predetermined time unit for each predetermined time unit;
Based on a predetermined time unit, for each device, a second means for calculating the operating mode-specific operating time in the predetermined time in the unit, as well as measurement results by a plurality of times of the first means and the calculation result of the second means Then, the third means for obtaining the power consumption per unit time for each device for each operation mode using a matrix operation,
An apparatus for calculating power consumption per unit time for each operation mode of equipment in a facility.
施設内機器の消費電力量算出装置において、
所定時間単位毎に、所定時間単位における各機器の消費電力量の総和を測定する第1手段、
所定時間単位毎に各機器毎に、当該所定時間単位内における運転モード別の運転時間を算出する第2手段、ならびに
複数回分の第1手段による測定結果および第2手段の算出結果をもとにして、各機器毎の運転モード別の単位時間当たりの消費電力量を、行列演算を用いて求める第3手段、
第3手段によって求められた各機器毎の運転モード別の単位時間当たりの消費電力量と、第2手段の算出結果とに基づいて、各機器毎の上記所定時間単位内における消費電力量を算出する第4手段を備えていることを特徴とする施設内機器の消費電力量算出装置
In the power consumption calculation device for equipment in the facility,
A first means for measuring the total power consumption of each device in a predetermined time unit for each predetermined time unit;
Based on a predetermined time unit, for each device, a second means for calculating the operating mode-specific operating time in the predetermined time in the unit, as well as measurement results by a plurality of times of the first means and the calculation result of the second means Then, the third means for obtaining the power consumption per unit time for each device for each operation mode using a matrix operation,
Based on the power consumption per unit time for each operation mode obtained by the third means and the calculation result of the second means, the power consumption within the predetermined time unit for each equipment is calculated. A power consumption amount calculation device for equipment in a facility, comprising: a fourth means.
JP2003049881A 2003-02-26 2003-02-26 Device for calculating power consumption per unit time for each operation mode of equipment in facility and device for calculating power consumption of equipment in facility Expired - Fee Related JP4130134B2 (en)

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