JP2006060911A - Demand management system - Google Patents

Demand management system Download PDF

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JP2006060911A
JP2006060911A JP2004239642A JP2004239642A JP2006060911A JP 2006060911 A JP2006060911 A JP 2006060911A JP 2004239642 A JP2004239642 A JP 2004239642A JP 2004239642 A JP2004239642 A JP 2004239642A JP 2006060911 A JP2006060911 A JP 2006060911A
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individual
received power
amount
power amount
demand control
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Saiji Kawasaki
斉司 川▲崎▼
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Osaka Gas Co Ltd
大阪瓦斯株式会社
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/70Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of electrical power generation, transmission or distribution, i.e. smart grids as climate change mitigation technology in the energy generation sector
    • Y02E40/76Computing methods or systems for efficient or low carbon management or operation of electric power systems
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00Systems supporting electrical power generation, transmission or distribution
    • Y04S10/50Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
    • Y04S10/54Management of operational aspects
    • Y04S10/545Computing methods or systems for efficient or low carbon management or operation of electric power systems

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a demand management system that reduces cost of facilities sufficiently by minimizing the feeding capacity of feeding facilities of electric utility and that reflects its economic effect in the reduction of power rates charged to power consumers. <P>SOLUTION: This demand management system consists of individual devices 10, provided at each side of a plurality of the power consumers 2 and a central device 20 configured to be capable of communicating with each individual device 10. The individual devices 10 are configured, to perform the reduction control of individual receiving capacity that reduces the individual receiving capacity of the power consumers 2 in accordance with a command from the central device 20. If the central device 20 detects a state of excessive total receiving capacity, it determines an individual device 10', out of a plurality of individual devices 10, that is subjected to a command of performing the reduction control of the individual receiving capacity in the form of limiting the total receiving power below target total receiving power, and transmits the command to the individual device 10'. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、送配電線から受電する複数の受電者の受電量を管理するデマンド管理システムに関する。 The present invention relates to a demand management system for managing the power receiving amount of the plurality of power receiving who receive power from the power distribution wires.

従来から電気事業に携わる電力会社や電力市場自由化により電気事業に新規参入した特定規模電気事業者等の電気事業者から送配電線を介して受電する受電者は、所定のデマンド時限(例えば30分)毎の受電量を制限して、所定期間(例えば11ヶ月)におけるその受電量の最大値に応じて設定される契約受電量をできるだけ小さくすることで、契約受電量に応じて設定される電力料金の低減を図る場合がある。 The power receiving who receiving through the transmission and distribution lines conventionally to new entrants to the electric utility by power companies and power market liberalization engaged in electric utility from the specific scale electric utilities, such as electric utilities, the predetermined demand time period (e.g., 30 by limiting the power receiving amount per minute), by minimizing the contract power receiving amount that is set according to the maximum value of the received power amount in a predetermined period (e.g. 11 months), it is set in accordance with the contract power receiving amount there is a case to reduce the electricity rates.

一方、電気事業者は、各受電者との間で契約受電量を締結することで、各受電者の受電量の合計である総受電量のピークを低下させて総受電量をできるだけ平準化させ、給電設備の給電能力を小さくして設備コストの低下を図る場合がある。 Meanwhile, electric utilities, by a contract received power amount with each receiving party, as much as possible to equalize the total received power amount to lower the peak of the total amount of received power which is the sum of the received power amount of each receiving party , which may achieve a reduction in equipment cost by reducing the power supply capacity of the power supply facility.

そして、このように受電者の受電量を制限するために、家庭や工場等の個々の受電者側に設けられ、受電者の受電量を上記契約受電量に応じて設定された目標受電量以下に制限する形態で、その受電者に設けられた電力負荷における受電を遮断するなどして受電者の受電量を低下させる受電量低下制御を実行するように構成されたデマンド制御装置が知られている(例えば、特許文献1を参照。)。 Then, in order to limit the power receiving amount of power receiving party Thus, home and provided to the individual receiving side of the factory or the like, the received power amount of the power receiving person below the target received power amount which is set in accordance with the contract power receiving amount in the form of limiting, it is known constructed demand control device to perform the power receiving amount reduction control of reducing the power receiving amount of power receiving party, such as by blocking the power receiving at the receiving party to provided power load are (e.g., see Patent Document 1.).

更に、上記特許文献1に記載のデマンド制御装置は、受電者側に複数の電力負荷(負荷群)が存在する場合において、その複数の電力負荷の夫々に対して予め優先順位を設定しておき、その受電者の受電量が目標受電量を超えそうな場合に、その優先順位が高い電力負荷に対して優先的に受電を遮断するように構成されている。 Further, the demand control apparatus described in Patent Document 1, when a plurality of power loads to the power receiving side (load group) is present, is set in advance priorities for each of the plurality of power loads , when the received power amount of the power receiving party is likely to exceed the target received power amount, and is configured to block preferentially receiving for that priority higher power loads.

特開平6−197450号公報 JP-6-197450 discloses

電気事業者が複数の受電者に対して電力を供給する場合において、全ての受電者が同時に最大の契約受電量で受電する可能性が低いことから、各受電者の受電量の合計である総受電量は、各受電者の契約受電量の合計に達することは殆どないと考えられる。 In the case where the electric company supplies power to a plurality of receiving users, since it is unlikely that all of the power receiving user to the power receiving a maximum contract power receiving amount at the same time, the total is the sum of the received power amount of each receiving party the amount of power feed, is considered that there is little to reach the total contract amount of received power of each receiving person. しかし、複数の受電者に対して電力を供給する電気事業者は、各受電者に対して一定の信頼性を確保して給電するために、各受電者の受電量の最大値を考慮して設定された契約受電量の合計に応じて給電設備の給電能力を比較的大きくする必要があり、設備コストを十分に低下させることができない場合があった。 However, electric utilities supplying power to a plurality of power receiving person, in order to feed to ensure constant reliability for each receiving party, in consideration of the maximum value of the received power amount of each receiving party it is necessary to relatively increase the power supply capacity of the power supply facility in accordance with the sum of the set contracted power receiving amount, there may not be able to sufficiently reduce the equipment cost.

更に、ある受電者の受電量が目標受電量を超えそうな場合には、総受電量が比較的小さくても、その受電者において、デマンド制御装置が受電量低下制御を実行することにより、受電量が目標受電量以下に制限されるので、電気事業者が給電設備の給電能力に余裕がある場合でも、効率良く受電者に電力を供給することができない場合があった。 Further, when the received power amount of a power receiving party is likely to exceed the target received power amount, even if the total received power amount is relatively small, in the power receiving party, by demand control apparatus executes the received power amount reduction control, receiving the amount is limited to less than the target received power amount, even if the electric utility can afford the power supply capacity of the power supply facility, there may not be able to supply power to efficiently receiving party.

本発明は、上記の課題に鑑みてなされたものであり、その目的は、電気事業者が複数の受電者に対して電力を供給する場合において、給電設備の給電能力をできるだけ小さくして、設備コストの低下を十分に図り、その経済効果を受電者側の電力料金の低減に反映でき、更に、各受電者側における受電量低下制御の実行をできるだけ抑制して、電気事業者側の給電能力に合わせて効率良く受電者に電力を供給できるようにするデマンド管理システムを実現する点にある。 The present invention has been made in view of the above problems, its object is, in a case where the electric company supplies power to a plurality of receiving users, and minimize the power supply capacity of the power supply facility, equipment achieving a sufficient reduction in cost, can reflect the economic benefits in reducing the power rate of the power receiving side, further, to suppress as much as possible the execution of the received power amount reduction control of the power receiving side, electric utilities side feeding capacity It lies in realizing the demand management system to be able to supply power efficiently receiving party in accordance with the.

上記目的を達成するための本発明に係るデマンド管理システムの第1特徴構成は、送配電線から受電する複数の受電者側の夫々に設けられる個別デマンド制御装置と、 The first characterizing feature of the demand management system according to the present invention for achieving the above object, the individual demand control device provided in each of the plurality of power receiving side husband to receive power from the electric transmission,
前記各個別デマンド制御装置との間で通信可能に構成される中央デマンド制御装置とで構成され、 Wherein is composed of a communicatively configured central demand control unit with each individual demand control device,
前記個別デマンド制御装置が、前記中央デマンド制御装置から受信した個別受電量低下指令に従って、前記受電者の個別受電量を低下させる個別受電量低下制御を実行するように構成され、 The individual demand control device, wherein in accordance with reduction instruction individual received power amount received from the central demand control unit is configured to perform the individual received power amount reduction control of reducing the individual received power amount of the power receiving party,
前記中央デマンド制御装置が、前記各受電者の個別受電量の合計である総受電量が目標総受電量を超過する総受電量超過状態を判定する総受電量超過状態判定手段と、前記総受電量超過状態判定手段で前記総受電量超過状態を判定した際に、前記総受電量を前記目標総受電量以下に制限する形態で、前記複数の個別デマンド制御装置の中から前記個別受電量低下制御を実行させる指令対象個別デマンド制御装置を決定する指令対象決定手段と、前記指令対象個別デマンド制御装置に前記個別受電量低下指令を発信する指令手段とを備えた点にある。 The central demand control unit, and the total amount of received power excessive state determining means for determining the total received power amount excessive state the total received power amount of the is the sum of the individual received power amount of each receiving user exceeds the target total received power amount, the total power receiving upon determining the total received power amount excessive state in an amount excessive state judging means, in a form that limits the total received power amount below the target total received power amount, the individual received power amount decreases from the plurality of individual demand control device a command object determining means for determining a command object individual demand control apparatus for executing control lies in that a command means for transmitting the individual received power amount reduction instruction to the instruction object individual demand control device.

上記第1特徴構成によれば、複数の受電者の総受電量が所定の目標総受電量を超えそうな場合に、上記中央デマンド制御装置において、上記総受電量超過状態判定手段が上記総受電量超過状態を判定し、上記指令対象決定手段が、その総受電量を目標総受電量以下に制限するために有効な上記指令対象個別デマンド制御装置を決定し、上記指令手段が、その指令対象個別デマンド制御装置に対して上記個別受電量低下指令を、通信ネットワークを介して発信するので、その個別受電量低下指令を受信した指令対象個別デマンド制御装置は、その受電者に設けられた電力負荷の一部又は全部における受電の遮断又は制限、又は、受電者に設けられた発電設備の出力上昇により、受電者の個別受電量を低下させる個別受電量低下制御を実行するこ According to the first characterizing feature, when the total received power amount of the plurality of power receiving party is likely to exceed a predetermined target total received power amount, in the central demand control device, the total amount of received power excessive state judging means the total power receiving to determine the amount excessive state, the command object determining means determines a valid the command object individual demand control device for limiting the total received power amount less than the target total received power amount and said command means, the instruction target the individual received power amount reduction instruction to the individual demand control apparatus, since the transmitting via the communications network, the individual receiving amount command object individual demand control apparatus receiving the reduction instruction, the power load is provided to the receiving party blocking or restriction of the power receiving in some or all of, or the output increase in the power generation facility provided in the power receiving person, child running a separate power receiving amount reduction control of reducing the individual received power amount of the power receiving party になり、複数の受電者の総受電量が目標総受電量以下に制限されることになる。 Becomes, so that the total received power amount of the plurality of power receiving user is limited to less than the target total received power amount.

従って、その複数の受電者に対して電力を供給する電気事業者は、例えば上記目標総受電量を比較的小さく設定することで、給電設備の給電能力を比較的小さいものとして、設備コストの低下を十分に図り、その経済効果を受電者側の電力料金の低減に反映することができる。 Therefore, electric utilities supplying power to the plurality of power receiving person, for example, by setting relatively small the target total received power amount, as a relatively small feeding capacity of the feeding equipment, reduction in equipment cost the scale enough, it is possible to reflect the economic effect on the reduction of the power rate of the power receiving side.

更に、総受電量が目標総受電量以下に制限される形態で、指令対象の個別デマンド制御装置が決定されることから、総受電量が比較的小さい場合には、各受電者において個別デマンド制御装置は必要以上に個別受電量低下制御を実行する必要がないので、各受電者側における受電量低下制御の実行をできるだけ抑制して、電気事業者側の給電能力に合わせて効率良く受電者に電力を供給することができる。 Additionally, in the form the total received power amount is limited to less than the target total received power amount, since the individual demand control apparatus command object is determined, when the total received power amount is relatively small, individual demand control in each receiving party there is no need to perform separate power receiving amount reduction control device more than necessary, to suppress as much as possible the execution of the received power amount reduction control of the power receiving side, efficiently receiving party in accordance with the electric utility side of the supply capacity it is possible to supply the power.

本発明に係るデマンド管理システムの第2特徴構成は、前記複数の個別デマンド制御装置の少なくとも一部が、前記受電者の個別受電量が目標個別受電量を超過する個別受電量超過状態を判定する個別受電量超過状態判定手段を備えると共に、前記個別受電量超過状態判定手段で前記個別受電量超過状態を判定した際に前記個別受電量低下制御を実行するように構成されている点にある。 The second characterizing feature of the demand management system according to the present invention, at least a portion of the plurality of individual demand control device determines the individual received power amount excessive state the individual received power amount of the power receiving party exceeds the target individual received power amount provided with a separate power receiving amount excessive state judging means, it lies in the is configured to perform the individual received power amount reduction control when it is determined the individual received power amount excessive state in the individual receiving amount excessive state judging means.

上記第2特徴構成によれば、複数の受電者の総受電量が所定の目標総受電量を超えそうな場合だけでなく、各受電者の個別受電量が所定の目標個別受電量を超えそうな場合において、上記個別デマンド制御装置において、上記個別受電量超過状態判定手段が上記個別受電量超過状態を判定して、個別受電量低下制御を実行することになり、各受電者の受電量が目標個別受電量以下に制限されることになる。 According to the second characterizing feature, the total amount of received power of the plurality of power receiving party not only likely to exceed a predetermined target total received power amount, individual received power amount of each receiving person likely to exceed the predetermined target individual received power amount in case, in said individual demand control device, said individual receiving amount excessive state judging means determines the individual received power amount excessive state, would perform the individual received power amount reduction control, the received power amount of each receiving party would be limited to less than the target individual received power amount.
従って、各受電者は、個々に受電設備の容量や電力料金の低減目標等に応じて目標個別受電量を設定することができ、受電設備の故障を抑制したり、所定期間におけるその個別受電量の最大値に応じて設定される契約受電量をできるだけ小さくして、契約受電量に応じて設定される電力料金の低減を図ることができる。 Thus, each receiving party can set the target individual received power amount in accordance with the reduction targets like capacity and power rate individually power receiving equipment, or to suppress a failure of the power receiving equipment, the individual amount of received power in a predetermined period and minimize the contract power receiving amount that is set according to the maximum value, it is possible to reduce the power rate that is set according to the contract the received power amount.

本発明に係るデマンド管理システムの第3特徴構成は、前記複数の個別デマンド制御装置の全てが、前記受電者の個別受電量が目標個別受電量を超過する個別受電量超過状態を判定する個別受電量超過状態判定手段を備えると共に、前記個別受電量超過状態判定手段で前記個別受電量超過状態を判定した際に前記個別受電量低下制御を実行するように構成されており、 Third characterizing feature of the demand management system according to the present invention, all of the plurality of individual demand control device, discrete power receiving determining individual power receiving amount excessive state the individual received power amount of the power receiving party exceeds the target individual received power amount provided with a quantity excessive state judging means, wherein is configured to perform the individual received power amount reduction control when it is determined the individual received power amount excessive state in the individual receiving amount excessive state judging means,
前記中央デマンド制御装置における前記目標総受電量が、前記各個別デマンド制御装置における前記目標個別受電量の合計よりも小さく設定されている点にある。 Wherein the target total received power amount in the central demand control device, it is the in that it is set smaller than the sum of the target individual receiving amount in each individual demand control device.

上記第3特徴構成によれば、全ての個別デマンド制御装置が個別受電量低下制御を実行して全ての受電者の個別受電量が目標個別受電量以下に制限されている場合において、総受電量に対する目標個別受電量の合計の比が常に1よりも大きくなることから、中央デマンド制御装置における目標総受電量を、その目標個別受電量の合計よりも小さい適切なもの設定して、給電設備の給電能力を適切なものとすることができる。 According to the third characterizing feature, in the case where all the individual demand control device individually received power amount of all running individual received power amount reduction control of the power receiving person is limited to less than the target individual received power amount, the total received power amount for since the ratio of the sum of the target individual received power amount is always greater than 1, the target total received power amount in the central demand control unit, and set the target individual received power amount of total small appropriate one than the power supply facility the feeding capacity can be made appropriate.

本発明に係るデマンド管理システムの第4特徴構成は、前記指令対象決定手段が、前記総受電量超過状態判定手段で前記総受電量超過状態を判定した際の前記各受電者の個別受電量の増加率を算出し、前記個別受電量の増加率が高い前記受電者側に設けられた前記個別デマンド制御装置を優先して、前記指令対象個別デマンド制御装置に決定するように構成されている点にある。 The fourth characteristic configuration of the demand management system according to the present invention, the command object determining means, of the individual received power amount of the respective power receiving person at the time of determining the total received power amount excessive state by the total received power amount excessive state judging means calculating the increase rate, the individual received power amount of the increase rate is provided to a higher the power receiving side the preferentially separate demand control device, that is configured to determine the command object individual demand control device It is in.

上記第4特徴構成によれば、複数の受電者の総受電量が所定の目標総受電量を超えそうな場合に、受電者における個別受電量の増加率が高い順に個別デマンド制御装置が個別受電量低下制御を実行することになるので、総受電量の増加率を大幅に低下させて、総受電量が目標総受電量を超える可能性を低下させ、効率良く総受電量を目標総受電量以下に制限することができる。 According to the fourth characterizing feature, when the total received power amount of the plurality of power receiving party is likely to exceed a predetermined target total received power amount, individual demand control apparatus in descending order of increasing rate of the individual received power amount in the power receiving party separately powered it means that executing the amount reduction control, the rate of increase in the total amount of received power greatly reduced, reducing the possibility that the total received power amount exceeds the target total received power amount, efficiently target total received power amount of the total received power amount It may be limited to the following.

本発明に係るデマンド管理システムの第5特徴構成は、前記中央デマンド制御装置が、前記各個別デマンド制御装置による前記個別受電量低下制御実行時の前記受電者の個別受電量の低下量に関する個別低下条件を格納した個別低下条件データベースを備えると共に、前記指令対象決定手段が、前記総受電量を前記目標総受電量以下に制限するための前記総受電量の低下量に関する総低下条件を導出し、前記総低下条件に前記個別低下条件データベースに格納されている前記個別低下条件を割り当てる形態で、前記指令対象個別デマンド制御装置を決定するように構成されている点にある。 The fifth characteristic configuration of the demand management system according to the present invention, the central demand control apparatus, the individual reduction related decrease amount of the individual received power amount of the power receiving person at the time of the individual received power amount reduction control executed by each individual demand control device provided with a separate reduction condition database storing condition, the command object determining means derives the total reduction conditions regarding the amount of decrease in the total received power amount for limiting the total received power amount below the target total received power amount, the form of assigning the individual reduction conditions wherein is stored in a separate drop condition database total reduction conditions, in that it is configured to determine the command object individual demand control device.

上記第5特徴構成によれば、複数の受電者の総受電量が所定の目標総受電量を超えそうな場合に、総受電量を目標総受電量以下に制限するために導出した上記総低下条件に対して、各受電者における上記個別低下条件を適切に割り当てる形態で決定された指令対象個別デマンド制御装置が、個別受電量低下制御を実行することになるので、総受電量を適切に低下させて効率良く目標総受電量以下に制限することができる。 According to the fifth characterizing feature, when the total received power amount of the plurality of power receiving party is likely to exceed a predetermined target total received power amount, the derived above total reduced to limit the total received power amount less than the target total received power amount to the conditions, since the power receiving said individual drops condition determined in properly allocate form command object individual demand control apparatus in the user, and executes the individual received power amount reduction control, appropriately lowering the total received power amount They are allowed to can be limited to less efficiently target total received power amount.

本発明に係るデマンド管理システムの第6特徴構成は、少なくとも一部の前記個別デマンド制御装置が、前記受電者側に設けられた発電設備が異常停止状態であることを前記中央デマンド制御装置に通報する異常停止状態通報手段を備えて構成され、 The sixth characterizing feature of the demand management system according to the present invention, Problem that at least a portion of said individual demand control device, power generation equipment provided in the power receiving side is abnormal stop state to the central demand control unit is configured to include an abnormal stop state notification means for,
前記中央デマンド制御装置が、前記発電設備と、該発電設備が異常停止状態となったときに前記指令対象個別デマンド制御装置に決定する前記個別デマンド制御装置とを関連付けた関連付け情報を格納した関連付け情報データベースを備えると共に、前記指令対象決定手段が、前記関連付け情報データベースに格納されている前記関連付け情報を参照して、前記異常停止状態通報手段から前記異常停止状態の通報を受けた前記発電設備に関連付けられた前記個別デマンド制御装置を優先して、前記指令対象個別デマンド制御装置に決定するように構成されている点にある。 The central demand control device, the association information stored said power generating equipment, said association information associating the individual demand control device for determining on the command object individual demand control device when the power-generating equipment is abnormal stop state provided with a database, the command object determining means, by referring to the association information stored in the association information database, associated with the power plant from the abnormal stop state notification means has received the notification of the abnormal stop state It was in favor of the individual demand control device, in that it is configured to determine the command object individual demand control device.

上記第6特徴構成によれば、上記関連付け情報として、個別受電量低下制御を実行した場合に、その発電設備が上記異常停止状態となったことにより増加する個別受電量と同等又はそれ以上の個別受電量の低下を実現する形態で、発電設備に対して個別デマンド制御装置を予め関連付けておくことで、受電者側に設けられた発電設備が異常停止状態となることにより、複数の受電者の総受電量が所定の目標総受電量を超えそうな場合において、迅速に、異常停止状態となった発電設備に対して関連付けられた個別デマンド制御装置を指令対象個別デマンド制御装置に決定して、個別受電量低下制御を実行させ、確実に総受電量を目標総受電量以下に制限することができる。 According to the sixth characterizing feature, the as association information, in the case of executing the individual received power amount reduction control, the power plant is the abnormality equivalent to the individual receiving increasing amounts by which a stopped state or more individual in forms of implementing the reduction in the received power amount, by previously associating the individual demand control device relative power plant, by the power generation equipment provided on the power receiving side becomes abnormal stop state, a plurality of power receiving party in case the total received power amount is likely to exceed a predetermined target total received power amount, quickly, the individual demand control device associated with relative power plant became abnormal stop state determined in the command object individual demand control device, to execute the individual received power amount reduction control, it is possible to reliably limit the total received power amount less than the target total received power amount.

本発明に係るデマンド管理システムの実施の形態について、図面に基づいて説明する。 Embodiments of the demand management system according to the present invention will be described with reference to the drawings.
尚、図1は、特定規模電気事業者(以下、PPS(Power Producer and Supplier)と呼ぶ。)から、電力会社が運営管理する送配電線1を利用して、複数の受電者2へ電力を託送する電力事業において実施されるデマンド管理システムの概略構成図を示した図であり、図2は、そのデマンド管理システムが実行するデマンド管理処理の処理フロー図、及び、図3は、そのデマンド管理処理において実行されるリセット処理の処理フロー図である。 In addition, FIG. 1 is a specific scale electric utilities (hereinafter, PPS (Power Producer and Supplier) and is referred to.) From, using the transmission and distribution lines 1, the power company to operational management, the power to the multiple of the receiving person 2 is a diagram showing a schematic configuration diagram of a demand management system implemented in the power industry for wheeling, 2, the process flow diagram of a demand management processes that demand management system to run, and, FIG. 3, the demand management it is a process flow diagram of a reset process executed in the process.

デマンド管理システムは、各受電者2側に設置されたコンピュータからなる複数の個別デマンド制御装置10と、PPS側等に設置されたコンピュータからなる中央デマンド制御装置20とで構成され、この中央デマンド制御装置20は、複数の個別デマンド制御装置10の夫々との間で、インターネット等の通信ネットワーク30を介して通信可能に構成されている。 Demand management system includes a plurality of individual demand control device 10 consisting of computers installed in the receiving party 2 side is composed of a central demand control device 20 consisting of computers installed on the PPS side like, the central demand control device 20, between a husband plurality of individual demand control device 10 s, and is capable of communicating via a communications network 30 such as the Internet.
尚、上記中央デマンド制御装置20は、PPS以外の第三者によって運用されるものであっても構わない。 Incidentally, the central demand control device 20 may be one that is operated by a third party other than PPS.

各受電者2側には、受電者2の生活に合わせて電力を消費する電灯や電気機器等の電力負荷3と、送配電線1からの受電量(以下、個別受電量と呼ぶ。)を計測する電力量計測器7とが設けられている。 Each receiving user 2 side, a power load 3, such as lights and electrical equipment that consumes power in accordance with the life of the power receiving user 2, the received power amount from the transmission and distribution lines 1 (hereinafter, referred to as individual power receiving amount.) The and electric energy meter 7 that measures are provided.

そして、各受電者2は、受電者2の個別受電量の低下の目的で遮断器4を作動させて受電を停止可能な電力負荷3aを有する受電者2b,2cや、受電者2の個別受電量の低下の目的で起動又は出力上昇させることができるコージェネレーションシステム等の発電設備6を有する受電者2a,2cとされている。 Each receiving user 2, the power receiving person 2b with stoppable power load 3a power reception by operating the breaker 4 for the purpose of lowering the individual received power amount of the power receiving user 2, and 2c, the individual receiving the receiving person 2 receiving person 2a with power generation equipment 6 such as cogeneration system can be activated or increased output for the purpose of decrease in the amount, there is a 2c.

各受電者2側に設けられた個別デマンド制御装置10は、上記のように遮断器4を作動させたり、発電設備6を起動又は出力上昇させるなどして、受電者2の個別受電量を所定期間低下させる個別受電量低下制御を実行可能に構成されている。 Individual demand control device 10 provided to each receiving user 2 side, or to actuate the circuit breaker 4 as described above, and the like to start or increase in output of power generation equipment 6, a predetermined individual received power amount of the power receiving person 2 It is configured to be able to execute individually received power amount reduction control of reducing the period.

また、受電者2の個別受電量を低下させるための上記電力負荷3aと上記発電設備6との両方を有する受電者2cに設けられた個別デマンド制御装置10は、個別受電量低下制御において、遮断器4を作動させるか、発電設備6を起動又は出力上昇させるかを、予め設定された条件又はそのときの電力負荷3aの受電容量や発電設備6の出力等に応じて、適宜選択して実行することができる。 The power receiving person 2 separate demand control apparatus provided both in the receiving party 2c having the above power load 3a and the power plant 6 for reducing the individual received power amount 10, the individual received power amount reduction control, blocking or to operate the vessel 4, whether to start or increase in output of power generation facility 6, in response to preset conditions or output or the like of the power receiving capacity and power generation equipment 6 of power loads 3a at that time, run by appropriately selecting can do.

PPSから受電する各受電者2は、PPSとの間で締結する電力需給契約において、各受電者2の個別受電量の合計である総受電量をPPS側によって設定された目標総受電量以下に制限する目的で、PPS側から指令を受けた場合に、個別デマンド制御装置10に個別受電量低下制御を実行させて、個別受電量を低下させるものとされており、このような電力需給契約を締結することにより、PPSは給電設備の給電能力をできるだけ小さくして設備コストの低下を十分に図り、受電者2はその経済効果の一部を電力料金の割引として受けることができる。 Each receiving user 2 to receive power from PPS, in the power supply contract concluded between the PPS, the total amount of received power which is the sum of the individual received power amount of each receiving person 2 below target total received power amount set by the PPS side for purposes of limitation, when receiving a command from the PPS side, by executing the individual received power amount reduction control to the individual demand control device 10, which is intended to reduce the individual received power amount, such power supply contract by fastening, PPS is achieving a sufficient reduction in equipment cost by minimizing the supply capacity of the power supply facility, the power receiving user 2 can receive a part of the economic benefits as a discount on the electricity rate.

そして、デマンド管理システムは、図2及び3に示すように、このように総受電量を目標総受電量以下に制限するためのデマンド管理処理を実行するように構成されており、このデマンド管理処理の処理フローに従って、そのデマンド管理処理を実行するための詳細構成について、以下に説明する。 The demand management system, as shown in FIG. 2 and 3, thus being configured to perform demand management process for limiting the total received power amount less than the target total received power amount, the demand management process according to the processing flow, detailed configuration for executing the demand management process will be described below.

各受電者2側に設けられた個別デマンド制御装置10は、電力量計測器7により所定のデマンド時限(例えば30分)において積算した受電者2の個別受電量を計測すると共に、その計測した個別受電量を、通信ネットワーク30を介して中央デマンド制御装置20に送信するように構成されており、更に、上記中央デマンド制御装置20から、通信ネット−ワーク30を介して、後述する個別受電量低下指令を受信した場合に、その個別受電量低下指令に従って、上記個別受電量低下制御を実行するように構成されている。 Individual demand control device 10 provided to each receiving user 2 side, the individual as well as measuring the individual received power amount of the power receiving person 2 obtained by integrating the predetermined demand time by electric energy meter 7 (e.g. 30 minutes), which was the measured the received power amount is configured to transmit via the communication network 30 to the central demand control unit 20, further, from the central demand control unit 20, via the communication network 30, reduced discrete power receiving amount to be described later when receiving the command, according to the individual received power amount reduction instruction, it is configured to perform the individual received power amount reduction control.

一方、中央デマンド制御装置20は、各受電者2の個別受電量の合計である総受電量が目標総受電量を超過する総受電量超過状態を判定する総受電量超過状態判定手段21、上記総受電量超過状態判定手段21で総受電量超過状態を判定した際に、総受電量を目標総受電量以下に制限する形態で、複数の個別デマンド制御装置10の中から上述した個別受電量低下制御を実行させる指令対象個別デマンド制御装置10'を決定する指令対象決定手段22、その指令対象個別デマンド制御装置10'に個別受電量低下指令を発信する指令手段23として機能するように構成されている。 On the other hand, the central demand control device 20, the power receiving party 2 discrete power receiving amount total received power amount total received power amount is determined excessive state in which the total received power amount which is the total exceeds the target total received power amount of the excessive state judging means 21, the upon determining the total received power amount excessive state by the total received power amount excessive state judging means 21, in the form of limiting the total received power amount less than the target total received power amount, individual received power amount described above from a plurality of individual demand control device 10 'command object determining means 22 for determining, the command object individual demand control device 10' command object individual demand control device 10 to execute the reduction control is configured to function as a command unit 23 for transmitting a reduction instruction individual received power amount to ing.

詳しくは、中央デマンド制御装置20は、上記総受電量超過状態判定手段21により、各個別デマンド制御装置10から受信した個別受電量を合計して算出される上記総受電量の推移を監視して、上述したデマンド時限が終了するまでに上記総受電量超過状態となるか否かを判定する(ステップ#201〜ステップ#203)。 Specifically, the central demand control device 20, by the total received power amount excessive state judging means 21 monitors the transition of the total received power amount calculated by summing the individual received power amount received from the individual demand control device 10 determines whether the above-mentioned demand time period is the total amount of received power excessive state before terminating (step # 201 to step # 203).

そして、中央デマンド制御装置20は、上記総受電量超過状態判定手段21で上記総受電量超過状態となると判定した場合には、上記指令対象決定手段22により、上記デマンド時限において総受電量が目標総受電量以下に制限するために有効な上記指令対象個別デマンド制御装置10'を決定し(ステップ#204)、上記指令手段23により、その指令対象個別デマンド制御装置10'に対して、通信ネットワーク30を介して、個別受電量低下指令を発信する(ステップ#205)ように構成されている。 The central demand control device 20, if it is determined that the above total amount of received power excessive state in the total received power amount excessive state judging unit 21, by the command object determining unit 22, the total amount of received power in the demand time period, the target the total received power amount or less to 'determine the (step # 204), by the command means 23, the command object individual demand control device 10' valid the command object individual demand control device 10 in order to limit relative communication network through 30, it is configured to transmit a reducing instruction individual received power amount (step # 205).

よって、上記中央デマンド制御装置20から個別受電量低下指令を受信した指令対象個別デマンド制御装置10'は、その個別受電量低下指令に従って、上記個別受電量低下制御を実行して(ステップ#105,ステップ#104)、受電者2の個別受電量を低下させる。 Therefore, the central demand control device 20 commands the object individual demand control device receives the individual received power amount reduction instruction from the 10 ', in accordance with the individual received power amount reduction instruction, running the individual received power amount reduction control (step # 105, step # 104), reducing the individual received power amount of the power receiving party 2.
そして、上記のようなデマンド管理処理を実行することにより、総受電量は目標総受電量以下に制限されることになる。 Then, by executing the demand management process as described above, the total amount of received power will be limited to less than the target total received power amount.

更に、個別デマンド制御装置10は、上記デマンド時限において、受電者2の個別受電量が所定の目標個別受電量を超過する個別受電量超過状態を判定する個別受電量超過状態判定手段11として機能すると共に、上記個別受電量超過状態判定手段11で上記個別受電量超過状態を判定した際に、上記個別受電量低下制御を実行するように構成されている。 Furthermore, the individual demand control device 10, in the demand time period, which functions as an individual received power amount excessive state judging means 11 for individually receiving amount of power receiving user 2 to determine the individual received power amount excessive state exceeding the predetermined target individual received power amount with, upon determining the individual received power amount excessive state in said individual received power amount excessive state judging unit 11, is configured to perform the individual received power amount reduction control.

詳しくは、個別デマンド制御装置10は、上記個別受電量超過状態判定手段11により、受電者2の個別受電量の推移を監視し、上記デマンド時限が終了するまでに上記個別受電量超過状態となるか否かを判定し、上記個別受電量超過状態となると判定した場合には、上記個別受電量低下制御を実行して(ステップ#101〜ステップ#104)、個別受電量を目標個別受電量以下に制限する。 Specifically, the individual demand control device 10, by the individual received power amount excessive state judging means 11 monitors the transition of the individual received power amount of the power receiving user 2, and said individual power receiving amount excessive state until the demand time is completed whether determines, when it is determined that the said individual power receiving amount excessive state executes the individual received power amount reduction control (step # 101 to step # 104), the following target individual received power amount an individual received power amount It is limited to.

更に、全ての受電者2の個別デマンド制御装置10が、上記個別受電量超過状態判定手段11として機能して、上記個別受電量超過状態判定手段11で上記個別受電量超過状態を判定した際に上記個別受電量低下制御を実行することで、個別受電量を目標個別受電量以下に制限するように構成されている場合には、総受電量の上限である目標総受電量は、各個別受電量の上限である目標個別受電量の合計よりも小さく設定される。 Further, when the individual demand control device 10 of any of the power receiving person 2, which the function as individual received power amount exceeds state determining means 11 determines the individual received power amount excessive state in said individual received power amount excessive state judging means 11 said by executing the individual received power amount reduction control, if it is configured to limit below a target individual received power amount an individual received power amount, the target total received power amount is the upper limit of the total amount of received power, each individual receiving is set smaller than the sum of the target individual received power amount is the upper limit of the amount. 例えば、目標総受電量はPPS側の給電能力等に応じて設定され、目標個別受電量は各受電者2における受電設備の容量等に応じて設定される。 For example, the target total received power amount is set in accordance with the PPS side of the power supply capacity such as, the target individual received power amount is set according to the capacity of the power receiving equipment of each receiving person 2.

デマンド時限が終了したときには、個別デマンド制御装置10及び中央デマンド制御装置20は、図3に示すように、所定のリセット処理(ステップ#300,ステップ#400)を実行するように構成されている。 When the demand time is finished, the individual demand control device 10 and the central demand control unit 20, as shown in FIG. 3, the predetermined reset process (step # 300, step # 400) is configured to perform.

詳しくは、個別デマンド制御装置10及び中央デマンド制御装置20は、リセット処理において、これまで積算したデマンド時限における個別受電量及び総受電量をリセット(0とすること)する(ステップ#301,ステップ#401)。 Specifically, the individual demand control device 10 and the central demand control unit 20, in the reset process, heretofore (that is 0) Reset individual received power amount and the total received power amount at the demand time by integrating (step # 301, step # 401).

次に、中央デマンド制御装置20は、指令対象個別デマンド制御装置10'に実行させている個別受電量低下制御を終了するか否か判断し(ステップ#402)、個別受電量低下制御を終了しないと判断した場合には、その指令対象個別デマンド制御装置10'に対して継続指令を発信する(ステップ#403)。 Next, the central demand control unit 20 determines whether to end the individual received power amount reduction control that is executed in the command object individual demand control device 10 '(Step # 402), does not end the individual received power amount reduction control and if it determines that emits a continuous command to the command object individual demand control device 10 '(step # 403).

尚、上記中央デマンド制御装置20は、ステップ#402において、例えば、過去の総受電量からその時点が、総受電量が目標総受電量を超えやすい時間帯であると判断される場合や、その時点において故障等により異常停止状態となっている発電設備6が存在する場合等において、指令対象個別デマンド制御装置10'に実行させている個別受電量低下制御を終了しないと判断することができる。 Incidentally, the central demand control device 20 in step # 402, for example, when the time from the total received power amount of past, the total amount of received power is determined to be beyond easy hours target total received power amount, the when such power plant 6 that an abnormal stop state due to failure or the like at the time are present, it may be determined not to terminate the individual received power amount reduction control that is executed in the command object individual demand control device 10 '.

一方、個別デマンド制御装置10は、中央デマンド制御装置20から上記継続指令を受信したか否かを判定し(ステップ#302)、継続指令を受信しなかった場合のみ個別受電量低下制御を終了し(ステップ#303)、継続指令を受信した場合には個別受電量低下制御を終了せずに継続して実行する。 On the other hand, the individual demand control device 10 includes a central demand control unit 20 determines whether it has received the continuation command (Step # 302), and terminates the only individual received power amount reduction control if it does not receive the continuation command (step # 303), when receiving the continuation command is executed continuously without leaving the individual received power amount reduction control.

次に、中央デマンド制御装置20が機能する指令対象決定手段22が指令対象個別デマンド制御装置10'を決定する形態についての第1〜第3の実施形態について、説明を追加する。 Next, the first to third embodiments of the forms of command object determining means 22 central demand control unit 20 functions to determine a command object individual demand control device 10 ', and add a description.

〔第1実施形態〕 First Embodiment
本第1実施形態において、中央デマンド制御装置20が機能する指令対象決定手段22が、総受電量超過状態判定手段21で総受電量超過状態を判定した際の各受電者2の個別受電量の増加率を算出し、その算出した個別受電量の増加率が高い受電者2側に設けられた個別デマンド制御装置10を優先して、指令対象個別デマンド制御装置10'に決定するように構成されている。 In the first embodiment, command object determining means 22 central demand control device 20 to function, the total amount of received power excessive state judging means 21 in a total amount of received power exceeds state of each power receiving when the judge second individual received power amount calculating a rate of increase, the individual demand control device 10 provided in the growth rate is high power receiving user 2 side of the calculated individual received power amount with priority, is configured to determine a command object individual demand control device 10 ' ing.
詳しくは、中央デマンド制御装置20は、各個別デマンド制御装置10から受信した個別受電量を時系列的に記憶しておき、上記指令対象決定手段22により、各受電者2におけるその個別受電量の増加率を算出し、総受電量が目標総受電量以下に制限可能な状態となるまで、順次、増加率が高い順に指令対象個別デマンド制御装置10'を決定して、その指令対象個別デマンド制御装置10'に個別受電量低下制御を実行させる。 Specifically, the central demand control device 20, leave chronologically stores the individual received power amount received from the individual demand control device 10, by the command object determining unit 22, the individual amount of received power of each power receiving person 2 calculating a rate of increase, to a total amount of received power is the limiting ready below the target total received power amount, sequentially determines a command object individual demand control device 10 'to increase the descending order, the command object individual demand control to execute the individual received power amount reduction control to the apparatus 10 '.

そして、このように指令対象個別デマンド制御装置10'を決定することで、早期に総受電量の増加率が大幅に低下して、総受電量が目標総受電量を超える可能性が少なくなり、効率良く総受電量が目標総受電量以下に制限される。 And this way, by determining a command object individual demand control device 10 ', reduced total received power amount of increase is much early, possibly less the total received power amount exceeds the target total received power amount, efficient total received power amount is limited to less than the target total received power amount.

〔第2実施形態〕 Second Embodiment
本第2実施形態において、中央デマンド制御装置20が、各個別デマンド制御装置10による個別受電量低下制御実行時の受電者2の個別受電量の低下量に関する個別低下条件を格納した個別低下条件データベース24を備える。 In the second embodiment, the central demand control device 20, each individual demand control device 10 individually lowered condition database storing individual reduction conditions regarding the amount of decrease in the individual received power amount of the power receiving person 2 at the time of the individual received power amount reduction control execution by equipped with a 24.
そして、中央デマンド制御装置20が機能する指令対象決定手段22が、総受電量を目標総受電量以下に制限するための総受電量の低下量に関する総低下条件を導出し、総低下条件に個別低下条件データベース24に格納されている個別低下条件を割り当てる形態で、指令対象個別デマンド制御装置10'を決定するように構成されている。 The command object determining means 22 central demand control device 20 to function, the total received power amount to derive a total reduction conditions regarding reduction of total received power amount to limit below a target total received power amount, individually total reduction conditions in the form of assigning the individual lowering conditions stored in the reduced condition database 24, it is configured to determine a command object individual demand control device 10 '.

詳しくは、上記個別低下条件データベース24は、個別受電量低下制御により受電が停止される電力負荷3aの容量や、個別受電量低下制御により起動又は出力上昇される発電設備6の上昇出力等として設定される個別低下電力等を、上記個別受電量の低下量に関する上記個別低下条件として各個別デマンド制御装置10について格納している。 Specifically, the individual reduction condition database 24, the capacity and the power load 3a which is powered by the reduction control individually the power receiving amount is stopped, set as an increase output, etc. of power plant 6 that is activated or output increased by reduction control individual power receiving amount individual drop power, etc. that are stores for each individual demand control device 10 as the individual drop condition regarding the amount of decrease in the individual received power amount.

そして、指令対象決定手段22は、総受電量超過状態となると判定した場合に、その時点からデマンド時限が終了するまでの時間である総低下時間と、そのデマンド時限が終了するまでに低下すべき総受電量の総低下量とを導出すると共に、その総低下量を総低下時間で割った値である総低下電力を、上記総低下条件として導出し、上記個別低下条件データベース24に格納している各受電者の個別条件を参照して、各指令対象個別デマンド制御装置10'の個別低下電力の合計が上記総低下電力以上となり、且つ、個別低下電力の合計と上記総低下電力との差が最小となる形態で、指令対象個別デマンド制御装置10'を決定し、その指令対象個別デマンド制御装置10'に個別受電量低下制御を実行させる。 The command object determining unit 22, when it is determined that the total amount of received power excessive state, time and total reduction time is from that point until the demand time is completed, to be reduced by that demand time is completed together to derive the total amount of reduction in the total received power amount, the total reduction power is divided by the total reduction amount by the total reduction time was derived as the total decrease condition, stored in the individual reduction condition database 24 Referring to the power receiving's individual conditions are the sum of the individual reduction power of each command object individual demand control device 10 'becomes the total decrease power or more and the difference between the total and the total reduction power of the dedicated reduced power There in a form which minimizes, 'to determine, the command object individual demand control device 10' command object individual demand control device 10 to execute the individual received power amount reduction control to.

そして、このように指令対象個別デマンド制御装置10'を決定することで、総受電量を必要に合わせて適切に低下させて効率良く目標総受電量以下に制限することができる。 Then, it is possible to restrict this way, by determining a command object individual demand control device 10 ', suitably reduced to below efficiently target total received power amount and the combined total received power amount required.

また、上記個別低下条件データベース24に、上記個別低下条件として、上記個別低下電力に加えて、その電力負荷3の受電を停止することができる時間、又は、発電設備3を起動又は出力上昇させることができる時間として設定される個別低下時間等を格納しておき、上記指令対象決定手段22が、指令対象個別デマンド制御装置10'が個別受電量低下制御を実行する最大時間を上記個別低下時間以下に制限する形態で、指令対象個別デマンド制御装置10'を決定するように構成しても構わない。 Further, in the individual reduction condition database 24, as the individual drop conditions, the addition to the individual decrease power, time can stop the receiving of the power load 3, or be activated or increased output power generation equipment 3 It may be stored separately reduction time and the like to be set as a time that can, the command object determining means 22, the maximum time the command object individual demand control device 10 'executes the individual received power amount reduction control following said individual drop time in the form of limiting, it may be configured to determine a command object individual demand control device 10 '. また、個別デマンド制御装置10が個別受電量低下制御において発電装置6を起動又は出力上昇させる場合には、指令対象決定手段22は、その発電装置6の起動又は出力上昇時に必要な出力上昇時間や発電装置6の停止又は出力下降時に必要な出力下降時間等を考慮して、上記個別低下時間を設定しても構わない。 Further, when the individual demand control device 10 is activated or increased output power generation device 6 in the individual received power amount reduction control, command object determining unit 22, the output rise time Ya required at startup or increased output of the power generator 6 taking into account the stop or the output fall time required for the output lowering of the generator 6, etc., it may be set to the individual drop time.

〔第3実施形態〕 Third Embodiment
本第3実施形態において、少なくとも一部の個別デマンド制御装置10が、受電者2a,2c側に設けられた発電設備6が故障やメンテナンス等の理由で起動することができない異常停止状態であることを中央デマンド制御装置20に通報する異常停止状態通報手段12として機能するように構成されている。 In the third embodiment that, at least some of the individual demand control device 10, receiving party 2a, power plant 6 provided on 2c side is abnormal stop state can not be started because of failure or maintenance, the is configured to function as an abnormal stop state notification means 12 notifies the central demand control device 20.
更に、中央デマンド制御装置20が、発電設備6と、該発電設備6が異常停止状態となったときに指令対象個別デマンド制御装置10'に決定する個別デマンド制御装置10とを関連付けた関連付け情報を格納した関連付け情報データベース25を備える。 Furthermore, the central demand control device 20, the power generation equipment 6, the association information that associates the individual demand control device 10 for determining the command object individual demand control device 10 'when the power-generating equipment 6 becomes abnormal stop state comprising the association information database 25 for storing.
そして、中央デマンド制御装置20が機能する指令対象決定手段22が、関連付け情報データベース25に格納されている関連付け情報を参照して、異常停止状態通報手段12から異常停止状態の通報を受けた発電設備6に関連付けられた個別デマンド制御装置10を優先して、指令対象個別デマンド制御装置10'に決定するように構成されている。 The power plant command object determining means 22 central demand control device 20 to function, which refers to the association information stored in the association information database 25, received a notification of the abnormal stop state from the abnormal stop state notification means 12 in favor of individual demand control device 10 associated with 6, it is configured to determine a command object individual demand control device 10 '.

詳しくは、個別デマンド制御装置10が機能する異常停止状態通報手段12は、発電設備6が故障等の理由により異常停止したときに、その発電設備6が異常停止したことを通報するための異常停止信号を、通信ネットワーク30を介して中央デマンド制御装置20に送信し、一方、発電設備6が復旧したときに、その発電設備6の異常停止が終了したことを通報するための復旧信号を、通信ネットワーク30を介して中央デマンド制御装置20に送信する。 Specifically, the abnormal stop state notification means 12 serving the individual demand control device 10, when the power generating equipment 6 is abnormally stopped because of failure or the like, abnormal stop for notifying that the power generating equipment 6 is abnormally stopped the signal was transmitted via the communication network 30 to the central demand control device 20, whereas, when the power generating equipment 6 is restored, the restoration signal for notifying that the abnormal stop of the power generation facility 6 is completed, the communication and it transmits to the central demand control apparatus 20 via the network 30.

そして、中央デマンド制御装置20は、上記個別デマンド制御装置10から上記異常停止信号や上記復旧信号を受信することで、その異常停止又は復旧した発電設備6を特定した上で、その発電設備6が異常停止したこと又は復旧したことを認識することができる。 The central demand control unit 20, by receiving the abnormal stop signal and the recovery signal from said individual demand control device 10, on identifying the power generating equipment 6 that the abnormal stop or recovery, the power plant 6 it can recognize that it has it, or restored abnormally stopped.

更に、関連付け情報データベース25は、各発電設備6に対して、個別受電量低下制御により受電が停止される電力負荷3aの容量や個別受電量低下制御により起動又は出力上昇される発電設備6の上昇出力等として設定される個別低下電力が、該発電設備6の定格出力と同等又はそれ以上となる形態で、発電設備6と個別デマンド制御装置10とを関連付け、その関連付けを認識可能な関連付け情報を格納する。 Furthermore, association information database 25, increase in the power plant 6 for each power plant 6, the power reception by reduction control individually the power receiving amount is activated or increased output by the capacitance and individual received power amount reduction control of the power load 3a is stopped individual drop power set as an output or the like, in the form of a rated output which is equal to or more than the power-generating equipment 6, associating the individual demand control device 10 and the power generation equipment 6, a recognizable association information the association Store.

そして、中央デマンド制御装置20が機能する指令対象決定手段22は、例えば、異常停止信号を受信することによりある発電設備6が異常停止したことを認識した場合に、上記関連付け情報データベース25に格納されている関連付け情報を参照して、その発電設備6に関連付けられている個別デマンド制御装置10を指令対象個別デマンド制御装置10'に決定し、その指令対象個別デマンド制御装置10'に個別受電量低下制御を実行させる。 The command object determining means 22 central demand control device 20 to function, for example, when the power plant 6 that by receiving the abnormal stop signal is recognized that abnormally stopped, stored in the association information database 25 and by referring to the association information and, that the power plant 6 individual demand control device 10 associated with the 'determined in, the command object individual demand control device 10' command object individual demand control device 10 decreases the individual power receiving amount to perform the control.

そして、このように指令対象個別デマンド制御装置10'を決定することで、発電設備6が異常停止状態となったことにより総受電量が目標総受電量を超えそうな場合において、迅速に、異常停止状態となった発電設備に対して関連付けられた個別デマンド制御装置に個別受電量低下制御を実行させ、確実に総受電量を目標総受電量以下に制限することができる。 Then, by determining the thus command object individual demand control device 10 ', when the total received power amount by the power generation equipment 6 becomes abnormal stop state is likely to exceed the target total received power amount, rapid, abnormal to execute the individual received power amount reduction control to the individual demand control device associated with relative power plant became stopped, it is possible to reliably limit the total received power amount less than the target total received power amount.

尚、指令対象決定手段22は、別の形態で、指令対象個別デマンド制御装置10'を決定するように構成しても構わない。 Note that the command object determining means 22, in another embodiment, may be configured to determine a command object individual demand control device 10 '. 例えば、総受電量超過状態判定手段21で総受電量超過状態を判定した場合に、各受電者2に対して、個別デマンド制御装置10に個別受電量低下制御を実行させても良いか否かを、通信ネットワーク30等を介して確認し、実行しても良いと返事を受けた受電者2側の個別デマンド制御装置10を指令対象個別デマンド制御装置10'に決定するように構成しても構わない。 For example, when determining the total received power amount excessive state by the total received power amount excessive state judging means 21, for each receiving user 2, whether may be running a separate power receiving amount reduction control to the individual demand control device 10 and confirmed via a communication network 30 such as, configuring the individual demand control device 10 of the power receiving person 2 side that has received the good and reply be performed to determine the commanded target individual demand control device 10 ' I do not care.

また、上記実施の形態では、中央デマンド制御装置20における目標総受電量を各個別デマンド制御装置10における目標個別受電量の合計よりも小さく設定したが、別に、目標総受電量を目標個別受電量の合計以上に設定しても構わない。 Further, in the above embodiment, the target total received power amount in the central demand control device 20 is set smaller than the sum of the target individual receiving amount in each individual demand control device 10, apart from the target individual receiving amount target total received power amount it may be set to greater than or equal to the sum of.

また、上記実施の形態では、全ての個別デマンド制御装置10が、個別受電量超過判定手段11を備えて、各受電者2の個別受電量を目標個別受電量以下に制限するように構成したが、別に、個別デマンド制御装置10の全て又は一部が個別受電量超過判定手段11を備えずに、各受電者2の個別受電量を目標個別受電量以下に制限するように構成しなくても構わない。 Further, in the above embodiment, all of the individual demand control device 10, provided with individual receiving amount exceeds the determination unit 11 is configured so as to limit the individual received power amount of each receiving person 2 below the target individual received power amount separately, without configured such that all or part of the individual demand control device 10 is not provided with a separate power receiving amount exceeds determining means 11, to limit the individual received power amount of each receiving person 2 below the target individual received power amount I do not care.

デマンド管理システムの概略構成図 Schematic diagram of a demand management system デマンド管理処理を示すフロー図 Flow diagram illustrating a demand management process リセット処理を示すフロー図 Flow diagram illustrating the reset process

符号の説明 DESCRIPTION OF SYMBOLS

1:送配電線2,2a,2b,2c:受電者6:発電設備10:個別デマンド制御装置11:個別受電量超過状態判定手段12:異常停止状態通報手段20:中央デマンド制御装置21:総受電量超過状態判定手段22:指令対象決定手段M 1: transmission and distribution lines 2, 2a, 2b, 2c: receiving user 6: power generation facility 10: Individual demand control device 11 individually received power amount excessive state judging means 12: an abnormal stop state notification means 20: a central demand control unit 21: Total the received power amount excessive state judging means 22: Directive determining means M
23:指令手段24:個別低下条件データベース25:関連付け情報データベース 23: command means 24: Individual lowered condition database 25: association information database

Claims (6)

  1. 送配電線から受電する複数の受電者側の夫々に設けられる個別デマンド制御装置と、 And individual demand control device provided in each of the plurality of power receiving side husband to receive power from the electric transmission,
    前記各個別デマンド制御装置との間で通信可能に構成される中央デマンド制御装置とで構成され、 Wherein is composed of a communicatively configured central demand control unit with each individual demand control device,
    前記個別デマンド制御装置が、前記中央デマンド制御装置から受信した個別受電量低下指令に従って、前記受電者の個別受電量を低下させる個別受電量低下制御を実行するように構成され、 The individual demand control device, wherein in accordance with reduction instruction individual received power amount received from the central demand control unit is configured to perform the individual received power amount reduction control of reducing the individual received power amount of the power receiving party,
    前記中央デマンド制御装置が、前記各受電者の個別受電量の合計である総受電量が目標総受電量を超過する総受電量超過状態を判定する総受電量超過状態判定手段と、前記総受電量超過状態判定手段で前記総受電量超過状態を判定した際に、前記総受電量を前記目標総受電量以下に制限する形態で、前記複数の個別デマンド制御装置の中から前記個別受電量低下制御を実行させる指令対象個別デマンド制御装置を決定する指令対象決定手段と、前記指令対象個別デマンド制御装置に前記個別受電量低下指令を発信する指令手段とを備えたデマンド管理システム。 The central demand control unit, and the total amount of received power excessive state determining means for determining the total received power amount excessive state the total received power amount of the is the sum of the individual received power amount of each receiving user exceeds the target total received power amount, the total power receiving upon determining the total received power amount excessive state in an amount excessive state judging means, in a form that limits the total received power amount below the target total received power amount, the individual received power amount decreases from the plurality of individual demand control device demand management system with a command object determining means for determining a command object individual demand control apparatus for executing control, and a command means for transmitting the individual received power amount reduction instruction to the instruction object individual demand control device.
  2. 前記複数の個別デマンド制御装置の少なくとも一部が、前記受電者の個別受電量が目標個別受電量を超過する個別受電量超過状態を判定する個別受電量超過状態判定手段を備えると共に、前記個別受電量超過状態判定手段で前記個別受電量超過状態を判定した際に前記個別受電量低下制御を実行するように構成されている請求項1に記載のデマンド管理システム。 Wherein at least a portion of the plurality of individual demand control apparatus provided with a separate power receiving amount excessive state judging means for judging the individual received power amount excessive state the individual received power amount of the power receiving party exceeds the target individual received power amount, the individual receiving demand management system of claim 1, which is configured to execute the individual received power amount reduction control when it is determined the individual received power amount excessive state in an amount excessive state judging means.
  3. 前記複数の個別デマンド制御装置の全てが、前記受電者の個別受電量が目標個別受電量を超過する個別受電量超過状態を判定する個別受電量超過状態判定手段を備えると共に、前記個別受電量超過状態判定手段で前記個別受電量超過状態を判定した際に前記個別受電量低下制御を実行するように構成されており、 All of the plurality of individual demand control apparatus provided with a separate power receiving amount excessive state judging means for judging the individual received power amount excessive state the individual received power amount of the power receiving party exceeds the target individual received power amount, the individual received power amount exceeds state determining means said is configured to perform the individual received power amount reduction control when it is determined the individual received power amount exceeds state,
    前記中央デマンド制御装置における前記目標総受電量が、前記各個別デマンド制御装置における前記目標個別受電量の合計よりも小さく設定されている請求項1に記載のデマンド管理システム。 Wherein the target total received power amount in the central demand control apparatus, the demand management system according to claim 1 which is set smaller than the sum of the target individual receiving amount in each individual demand control device.
  4. 前記指令対象決定手段が、前記総受電量超過状態判定手段で前記総受電量超過状態を判定した際の前記各受電者の個別受電量の増加率を算出し、前記個別受電量の増加率が高い前記受電者側に設けられた前記個別デマンド制御装置を優先して、前記指令対象個別デマンド制御装置に決定するように構成されている請求項1から3の何れか一項に記載のデマンド管理システム。 The command object determining means, said calculating the individual received power amount increasing rate of the total amount of received power excessive state judging means the total amount of received power excessive state each receiving person at the time of determining the increase rate of the individual received power amount in favor of the individual demand control device provided in a higher the power receiving side, demand management according to claims 1, which is configured to determine the command object individual demand control apparatus in any one of 3 system.
  5. 前記中央デマンド制御装置が、前記各個別デマンド制御装置による前記個別受電量低下制御実行時の前記受電者の個別受電量の低下量に関する個別低下条件を格納した個別低下条件データベースを備えると共に、前記指令対象決定手段が、前記総受電量を前記目標総受電量以下に制限するための前記総受電量の低下量に関する総低下条件を導出し、前記総低下条件に前記個別低下条件データベースに格納されている前記個別低下条件を割り当てる形態で、前記指令対象個別デマンド制御装置を決定するように構成されている請求項1から3の何れか一項に記載のデマンド管理システム。 The central demand control device, provided with a said individual drop condition database storing individual reduction conditions regarding the amount of decrease in the individual received power amount of the power receiving person at the time of the individual received power amount reduction control executed by each individual demand control device, the instruction object determining means, the total received power amount to derive a total reduction conditions regarding the amount of decrease in the total received power amount to limit below the target total received power amount, the stored in a separate drop condition database to the total reduction conditions the individual reduction condition in the form of assigning a demand management system according to claim 1 that is configured in any one of 3 to determine the command object individual demand control apparatus have.
  6. 少なくとも一部の前記個別デマンド制御装置が、前記受電者側に設けられた発電設備が異常停止状態であることを前記中央デマンド制御装置に通報する異常停止状態通報手段を備えて構成され、 At least a portion of the individual demand control apparatus is configured to include an abnormal stop state notification unit for reporting to the central demand control unit that the power receiving side power plant provided is abnormal stop state,
    前記中央デマンド制御装置が、前記発電設備と、該発電設備が異常停止状態となったときに前記指令対象個別デマンド制御装置に決定する前記個別デマンド制御装置とを関連付けた関連付け情報を格納した関連付け情報データベースを備えると共に、前記指令対象決定手段が、前記関連付け情報データベースに格納されている前記関連付け情報を参照して、前記異常停止状態通報手段から前記異常停止状態の通報を受けた前記発電設備に関連付けられた前記個別デマンド制御装置を優先して、前記指令対象個別デマンド制御装置に決定するように構成されている請求項1から3の何れか一項に記載のデマンド管理システム。 The central demand control device, the association information stored said power generating equipment, said association information associating the individual demand control device for determining on the command object individual demand control device when the power-generating equipment is abnormal stop state provided with a database, the command object determining means, by referring to the association information stored in the association information database, associated with the power plant from the abnormal stop state notification means has received the notification of the abnormal stop state the individual demand control unit with priority, demand management system according to any one of claims 1-3, which is configured to determine the command object individual demand control apparatus which is.
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