JP2013066320A - Power demand regulating system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To inhibit imbalance between supply power amount and demand power amount by proposing a use agreement with appropriate incentives to a demand side for encouragement of cooperation when the demand power amount on the demand side is more than the supply amount on the supply side and supply shortage power is predicted to occur and by executing forced stop control of power supply.SOLUTION: On the basis of demand balance information of electric power, an individual-consumer use agreement proposal section transmits a control command for reducing or blocking power supply for a consumer, adjusts the power supply using a plurality of switches and prepares a use agreement including possible use power amount and electricity rate. In addition, the individual-consumer use agreement proposal section prepares a use agreement with a power rate reduced according to use power amount.

Description

  The present invention relates to a system that adjusts the balance between the amount of power supplied by a power company and the amount of power demand by a consumer.

  In the future, the proportion of renewable energy in the supplied power energy is expected to increase. However, the problem is that the amount of power generated by renewable energy is not stable due to the weather. Therefore, in order to ensure surplus power when the power supply amount decreases, the power company must separately maintain power generation equipment that can guarantee the power supply capacity for renewable energy. However, it is economically disadvantageous for an electric power company to hold the power generation facilities that are rarely used.

  Therefore, in Patent Document 1, it is possible to monitor the power usage of the consumer, perform various processes such as aggregation, and provide the processing results to the consumer to promote saving of the power usage. The system is described. Moreover, in the system of the said patent document 1, even if a consumer is provided with the information regarding power supply from a system, power consumption cannot be saved, and the monitoring server in a system predicts the future power demand amount, It is described that when it is determined that the power supply amount is lower than the demand power amount, the control information is transmitted to the consumer side, and the power supply to the power equipment is stopped in a preset priority order.

  Patent Document 2 proposes leveling of power consumption and optimizing power demand by presenting and negotiating information related to the load status of the system from the power supply system to the consumer. Describes a system and method that achieves cost reductions for suppliers and consumers. In Patent Document 2, a system for managing and controlling the amount of power supplied in a power supply system negotiates in advance with respect to a terminal of a consumer about a control amount of power supply. And controlling consumer-side power consuming equipment.

JP 2009-027917 A JP 2002-135976 A

  However, in the system described in Patent Document 1, when the amount of supplied power falls below the amount of demand power, the customer who forcibly stops power supply or urgently requests to reduce power consumption. There is no mention of the incentives on the side, and even if the customer does not respond to power saving, the system automatically stops control, or the customer simply charges the amount of power that could not be used due to supply stop control The only benefit is that you don't have to pay. In addition, in the system described in Patent Document 2, there is a description that negotiation using incentives is performed, but the power supply is not limited by using a plurality of switches as in the present invention. By performing the restriction, there is a possibility that the quality of life of the consumer is deteriorated.

  Therefore, the present invention proposes a usage contract that gives an appropriate incentive to the demand side when it is predicted that the demand side power demand amount will exceed the supply side power supply amount and insufficient power supply will occur as described above. Therefore, it is an object to promote cooperation and to forcibly stop power supply using a plurality of switches to suppress an imbalance between the amount of power supply and the amount of power demand.

  As a means to solve the problem, information is communicated between the power supplier and the power consumer through the communication network, and the power supply / demand balance is adjusted based on the prediction information of the subsequent power supply amount and power demand amount. Based on the power demand curve prediction information for predicting the subsequent power demand amount and the power generation amount prediction information for predicting the subsequent power generation amount from the data related to the consumer's power demand in the past in the supply and demand adjustment system For each consumer, each customer usage contract proposing unit that creates a power usage contract, and each consumer trend monitoring unit that monitors each consumer's power consumption and future power consumption trends , A demand-supply balance monitor that monitors the power supply-demand balance from the power demand curve prediction information, the power generation amount prediction information, and the power consumption monitoring information output from each consumer trend monitoring unit. A forced control execution unit that performs a control command to reduce or cut off power supply to a consumer using at least one switch that adjusts the power supply based on the information, and the control command of the forced control execution unit Accordingly, the opening / closing unit adjusts the power supply, and each consumer use contract proposing unit creates a use contract in which the power charge related to the amount of power used is reduced or exempted.

  The present invention encourages cooperation by proposing usage contracts that give consumers appropriate incentives even when the demand-side power demand exceeds the supply-side power demand and power shortages are expected to occur. By forcing control of power supply using multiple switches, it is possible to suppress the imbalance between the amount of power supply and the amount of power demand, and to adjust the power supply / demand balance with higher accuracy. is there.

System configuration. An example of a flow for creating an available energy profile and pricing. An example of an available power profile. An example of customization of an available power profile by a consumer. Re-suggestion of available energy profile and emergency request flow. Measures to improve compliance rate and penalty billing. Contract for forced control and power supply reduction / cut-off device. Communication format with customers.

  Examples of the present invention will be described below.

  FIG. 1 shows an overview of the system.

  The power consumption database 101 stores power demand (hereinafter referred to as a power demand curve) for each past day and each time zone. The power demand curve prediction unit 100 predicts tomorrow's power demand curve by using data such as the power consumption database 101 and information such as weather.

  The power generation device database 103 stores information on the maximum power generation amount of power generation devices such as power generation devices of electric power companies and consumer solar cells. The power generation amount prediction unit 102 predicts the amount of power that can be generated (hereinafter, a power generation possible curve) in each time zone of tomorrow using data such as the data of the power generation device database 103 and information such as weather.

  The power shortage prediction unit 104 uses the power demand curve prediction unit 100 tomorrow's power demand curve prediction result and the power generation amount prediction unit 102 tomorrow's power generation possible curve prediction result tomorrow's power shortage (minimum surplus power in each time zone). ) (Hereinafter referred to as an insufficient power prediction curve).

Each customer database 105 stores the actual amount of power used in each past day and time of each customer, the available power amount profile selected on each day, and the compliance rate and deviation.
The usable electric energy represents the electric energy that can be used in a predetermined time zone and day. Each consumer power consumption prediction unit 106 predicts the transition of power consumption in each time zone of each consumer tomorrow (hereinafter, predicted power consumption curve) using data in each customer database. Each consumer use contract proposing unit 107 reduces the peak power of the power demand curve by using the shortage power curve predicted by the shortage power prediction unit 104 and the predicted use power curve predicted by each consumer use power prediction unit 106 to reduce the shortage power. In order to solve the problem, the maximum power amount pattern that can be used in each of the plurality of time zones (hereinafter referred to as a usable power amount profile) and the scheduled charge when used in the profile are combined with the customer through the contract display terminal 114. Present. The consumer selects an available power amount profile that can be fulfilled from the presented available power amount profile. Further, the consumer can customize the usable power amount profile using the contract display terminal 114. In addition, the contract display terminal 114 displays the scheduled power charge in real time in accordance with the customized usable power amount profile to assist the judgment of the consumer. The flow of customization of the usable power amount profile will be described later. The power charge is set so as to give an incentive to refrain from using the power during the peak time of the maximum power by setting the power charge high in accordance with the peak of the maximum power consumption. The creation flow of the available power amount profile and the charge setting will be described later. The available power profile selected by each consumer using the contract display terminal 114 is stored in each consumer database 105. The power demand curve calculation unit 109 adds the deviation stored in each consumer database 105 to the available power amount profile selected by each consumer to estimate the maximum predicted power usage of each consumer, The power demand curve after the customer contract is estimated by integrating the maximum expected power consumption of the customer. The power shortage prediction unit 104 predicts a power shortage prediction curve after the customer contract from the power demand curve after the customer contract calculated by the power demand curve calculation unit 109 and the above-described power generation possible power curve. When insufficient power is generated in the power shortage prediction curve after the customer contract, each customer use contract proposal unit 107 re-proposes the usable power amount profile to each consumer in order to secure the power shortage. A method for re-proposing the usable power amount profile will be described later. In addition, each consumer trend monitoring unit 108 monitors whether each consumer is using a power within the usable power curve and is executing a contract. As a result, when it is predicted that the usable profile is exceeded or exceeded, a message prompting reduction of power consumption is displayed on the contract display terminal 114. In addition, when the usage exceeding the usable power amount profile continues, it is displayed so that it can be seen that the planned electricity charge increases due to penalty charging. The measures for improving the compliance rate and the penalty billing method will be described later. In the demand / supply balance monitoring unit 110, the transition of the power used by each customer in each customer trend monitoring unit 108, the power demand curve predicted by the power demand curve prediction unit 100, and the power generation predicted by the power generation amount prediction unit 102. Monitor the balance between demand and supply from the possible curve. The forced control execution unit 111 refers to each customer database 105 when the consumer exceeds the amount of usable electric power and when the demand exceeds the supply, and the power that can be forcibly controlled agreed by the contract is determined. The power supply is forcibly reduced or cut off by the supply reduction / cutoff device 113 to suppress demand and reduce the amount of power used.
The contract for forced control, the power supply reduction, and the cutoff device will be described later. The emergency request execution unit 112 solves this problem by making an emergency request when the demand is likely to exceed the supply even if the power supply of the customer who can be forcibly disconnected in the forced control execution unit 111 is stopped. The flow of the emergency request will be described later.

  FIG. 2 shows an example of a flow for creating an available power amount profile and a charge setting. The charge form is that the part of the power shortage prediction curve 200 predicted by the power shortage prediction unit 104 that has a high power shortage and the amount of power used has a high power charge, and encourages each customer to save power when demand is high. Set to. Each consumer usage contract proposing unit 107 uses the predicted usage power curve predicted by each customer usage power prediction unit 106 as a basic profile, and the peak power demand based on the insufficient power prediction curve 200 predicted by the insufficient power prediction unit 104. A profile that restricts the amount of usable power that reduces power consumption and reduces power shortage is generated, and the planned power charge is based on the charge system 201 set by the power shortage prediction curve 200 predicted by the power shortage prediction unit 104 Is calculated.

  FIG. 3 shows an example of the usable power profile. The transition of the amount of electric power used by the consumer is set as a basic consumption profile 300, and when this is selected, a profile without a charge discount is applied. In addition, the demand cut type 302 that suppresses the power consumption as a whole has a profile that allows customers to enjoy a discount on charges by saving. In the peak shift type A301 that shifts the power peak time, it is assumed that the customer can enjoy a discount on the charge with less burden, and the charge discount is such that the peak of the power usage shifts from the consumer average like the peak shift type B303 that has shifted the peak greatly. You can also select a profile that increases the size. Also, an absent / closed type 304 profile that uses almost no power is also conceivable. Depending on these profiles, the usage fee, peak power consumption reduction effect and insufficient power compensation effect are different, and selection is possible depending on the judgment of the customer.

  FIG. 4 shows an example of customization of the usable power profile by the consumer. Select the profile that most closely matches the customer's wishes from the available power profile presented on the contract display terminal (400), and make it possible for the customer to modify the profile to meet the needs of each customer. Power profile can be created independently. As a specific example, there is a customer in the morning as a customer's schedule, and it is scheduled to go out from 11:00 to 17:00, so if you want to charge the electric vehicle before and after (401), the time of the visitor and the electric vehicle charging The usable power profile is increased to 402, and the usable power profile is changed to a usable power profile in which the usable power amount during the outing time is decreased (402). In response to this, the contract display terminal 114 displays the available power profile, and the schedule is based on the charge (201) set based on the customized usable power profile and the insufficient power prediction curve 200 predicted by the insufficient power prediction unit 104. The charge is recalculated and the available power profile is customized (403). By selecting this, the peak power can be reduced in a form that suits each consumer's life.

  FIG. 5 shows a reproposal of an available power amount profile and an emergency request flow. After each customer selects an available power profile, when it is predicted that insufficient power will be generated by the insufficient power prediction unit 104 using the estimated power demand curve after the customer contract and the power generation possible curve, and the forced control execution unit 111 If the demand is likely to exceed the supply even if the power supply of the customer who can be forcibly disconnected is stopped, the emergency request execution unit 112 makes an emergency request. Urgent requests are made by auction. As a specific example, in the case of re-proposal of the usable power amount profile with the power shortage from 13:00 to 14:00 being 100 kWh, the usable power amount is reduced by 1 kWh from 13:00 to 14:00 from the usable power profile selected by each consumer. The generated usable power profile is generated (500), and as a privilege, a 10% discount on the total power price of the day is executed (501), and the proposed power profile is proposed to 100 consumers (502). If the cooperation of 100 customers can be obtained, the power shortage can be secured, so this problem is avoided by concluding a contract with the first 100 customers (503). Thus, at the time of re-suggestion, a privilege is given and the auction method is used to stimulate the consumer's willingness to purchase, and it becomes possible to solve the problem by a method that is advantageous to both the power company and the customer.

  FIG. 6 shows a method for improving the compliance rate and penalty charging. When the contracted usable electric energy is likely to be exceeded or exceeded, the above-mentioned content is notified to the consumer. In the contract customer's house 600, the contract display terminal 606 displays the usable power profile together with the power consumption monitoring (607), clearly displays that the contract power amount is expected to be exceeded or exceeded, Based on the most similar date in the past, the scheduled charge 608 and the excess charge schedule 609 are calculated from each customer database 105 and displayed on the contract display terminal 606 as shown in FIG. By notifying from an electric device such as the speaker 605 and the television 604, the customer is encouraged to reduce the amount of power used. In addition, since the consumer is not always in the house, the user is surely notified by notifying the mobile terminal 603 (portable contract display terminal or mobile phone) most likely to be held. Is possible. Still, if the available power amount is exceeded, the excess power charge is an extra charge (twice as much as the corresponding part of the charge system 201). As a result, the compliance rate of consumers can be improved.

  FIG. 7 shows a contract for forced control and a power supply reduction / cutoff device 700. The contract form proposed by each consumer use contract proposing unit 107 is not only for the usable power profile but forcibly when the contracted usable power profile is exceeded and when the overall demand is likely to exceed the supply. A contract form is also introduced that cuts the power supplied by the power company to the customer. In addition, the contract (701) when the contracted usable power profile is exceeded and the contract for forcibly cutting the power supplied to the consumer by the power company when the overall demand is likely to exceed the supply ( 702) are concluded separately, and the latter is more effective in reducing peak power consumption, and the discount is greater. In addition, it is possible to cut in a multistage manner depending on the amount of available power, and the greater the amount of power that can be cut, the greater the discount. When a customer can use 50A, four switches are installed in the power supply reduction / shut-off device 700, and a contract is made up to which switch can be forcibly disconnected. Furthermore, since a consumer can select a device to be connected to each switch, a contract can be made in accordance with the priority of the consumer. As a specific example, when a customer can forcibly cut up to the switch 3, the necessary items can be used at any time by connecting a lifeline device to the switch 4, and the implementation time such as an electric vehicle or washing can be changed. It is possible to connect a switch that is easy to disconnect, and select a contract / fee form that does not impair quality of life. System that is beneficial to both consumers and consumers. Compared with the prior art, this configuration enables more precise control of the power supply without degrading the quality of life of the consumer using a plurality of switches, so the supply-demand balance can be adjusted with higher accuracy. be able to.

  FIG. 8 shows a communication form with a consumer. Communication between each consumer and the power company server 601 is possible by the AMI meter 602. Using this, it is possible to collect the amount of electric power used, the current value, and the voltage value of each consumer for each hour. By storing the data collected by the AMI meter 602 in each customer database 105, it is possible to more accurately predict the amount of power used by each customer for each hour. The AMI meter 602 can also monitor whether each consumer is executing a contract. The AMI meter 602 can also implement control of a switch for notifying each customer when the contracted usable power amount is exceeded and forcing power control for power cut.

DESCRIPTION OF SYMBOLS 100 Electric power demand curve prediction part 101 Electric power consumption database 102 Electric power generation amount prediction part 103 Electric power generation device data database 104 Electric power shortage prediction part 105 Each consumer database 106 Each electric power consumption prediction part 107 Each electric customer use contract proposal part 108 Each demand House trend monitoring unit 109 Power demand curve calculation unit 110 Demand supply balance monitoring unit 111 Forced control execution unit 112 Emergency request execution unit 113 Power supply reduction / cutoff device 114 Contract display terminal 200 Insufficient power prediction curve 201 Fee system 300 Basic consumption profile 301 Peak shift type A
302 Demand cut type 303 Peak shift type B
304 Absence / Closed Type 600 Contract customer's house 601 Electric power company server 602 AMI meter 603 Mobile terminal 604 Television 605 Speaker 606 Contract display terminal 607 Radio tower 608 Scheduled charge 609 Scheduled charge at excess 700 Power supply reduction / cutoff device

Claims (4)

In a power supply and demand adjustment system that performs information communication between a power supplier and a power consumer via a communication network, and adjusts the power supply and demand balance based on prediction information of the subsequent power supply amount and power demand amount,
Based on the power demand curve prediction information for predicting the subsequent power demand from the data related to the power demand of the consumer in the past, and the power generation amount prediction information for predicting the subsequent power generation amount, each consumer For each customer use contract proposal section that creates a power use contract,
Each consumer trend monitoring unit that monitors trends in the amount of power used by each customer and the amount of power used thereafter,
From the power demand curve prediction information, the power generation amount prediction information, and the power consumption monitoring information output from each consumer trend monitoring unit, based on the demand supply balance monitoring information that monitors the power supply / demand balance, A forcible control execution unit that performs a control command to reduce or cut off power supply to a consumer using at least one switch to be adjusted;
In response to the control command of the forced control execution unit, the opening / closing unit adjusts the power supply, and each consumer use contract proposing unit creates a use contract that reduces or exempts the power charge related to the amount of power used. Power supply and demand adjustment system characterized by In the electric power supply and demand system according to claim 1,
Based on the monitoring information of each consumer trend monitoring unit, when the power demand amount is predicted to exceed the power supply amount from the demand supply balance monitoring information, each consumer use contract proposing unit is A power supply and demand adjustment system characterized by re-creating a usage contract that reduces the amount of power that can be used and reduces or exempts the electricity charge related to the amount of power used. The power supply and demand system according to claim 1 or 2,
A plurality of the switches are provided,
Each of the customer use contract proposal units creates a use contract that allows selection of the plurality of switches that perform the control command. The power supply and demand system according to any one of claims 1 to 3,
Each consumer use contract proposing part is notified from the monitoring information of each consumer trend monitoring part that the power consumer has made use exceeding the amount of power that can be used in the use contract. Then, a power supply and demand adjustment system characterized by re-creating a usage contract with an increased power charge related to the usage contract.