JP2003309929A - Power service system and power service server - Google Patents

Abstract

(57) [Problem] To provide a system for accurately predicting power demand and procuring power at a lower price by bidding based on the accurate predicted power demand. A power service server acquires power usage information from a power data transmission control system and stores the information in a power demand database. Next, based on the data stored in the power demand database 12,
A demand forecast is performed, and a bid condition 4 is transmitted to the power company terminal 21 via the Internet 8 based on the predicted power demand. The electric power companies (2a, 2b, 2c, ...)
A bid 5 is made with reference to the conditions displayed on the power company terminal 21. Further, by setting several power rate packages according to the power demand pattern and inducing the demand to match the packages, the accuracy of the power demand prediction is further improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for recognizing a power demand pattern of a consumer and procuring power at a low cost from an electric power company and supplying the power to the consumer based on the grasped power demand pattern.

[0002]

2. Description of the Related Art Conventionally, electric power is supplied to each customer from an electric power company that is monopolized in a region. Therefore, electric power charges are uniformly set by electric power companies in the region, and there is no room for the principle of competition to work.

In general households and small consumers,
If the power consumption was well controlled, it was not possible to procure electricity cheaply.

That is, for example, when supplying to an ordinary household, the electricity rate is determined by the current value of the breaker provided in each household, that is, the maximum electricity in the household and the amount of electricity consumed, and is flexible according to the load pattern. No electricity charges were set.

[0005]

Conventionally, from the viewpoint of stable power supply and securing of supply reliability, power supply has been in the form of regional monopoly, but regional monopoly impedes free competition and reduces power charges. In recent years, there has been a trend toward liberalization of electric power supply to ordinary households and small-lot consumers because of the problem that it will not happen.

However, even if the power supply to general households and small-lot customers is liberalized, competitive bidding is conducted if the power amount and power consumption pattern of the power to be procured from the power company cannot be accurately predicted. However, you cannot procure electricity cheaply.

[0007] Further, if the power consumption is left to the arbitrary arbitrary of ordinary households and small consumers, it is expected that expensive power will be unavoidable due to an unexpected increase in power demand.

The present invention has been made in view of the above problems, and it grasps the power demand patterns of ordinary households and small-scale consumers, accumulates them as a database, and makes demand forecasts based on the accumulated database. Procuring electricity at low cost based on the demand forecast, and setting the electricity charge package based on the electricity demand pattern accumulated in the database, and providing the electricity fee package that best matches the electricity demand pattern to general households or small consumers. An object of the present invention is to provide a system for supplying electric power at low cost to small-lot customers by selecting and inducing demand so that the actual electric power consumption conforms to the selected electric power rate package.

[0009]

A power service system according to the present invention is a power service system that procures electric power from an electric power supplier and supplies electric power to a customer, and collects the status of the power load of the customer. Means, and a power procuring means for procuring electric power from an electric power company based on a demand forecast made based on the power load situation of the consumer, and each consumer based on the power load situation of the consumer From the means for setting the charge package according to the power demand pattern of the above and the power load situation of the consumer, it is expected that the power consumed by the consumer will exceed the limit value of the power defined by the charge package. In this case, it has a means for notifying an alarm to the customer and at least either cutting off or increasing or decreasing the load.

As described above, according to the electric power service system of the present invention, the electric power demand pattern of the customer can be grasped and the demand forecast can be accurately made based on the grasped electric power demand pattern. Electricity can be obtained at low cost based on Further, since the power charge package is set based on the grasped power demand pattern, each consumer can select the power charge package that best matches the power demand pattern. Here, if the demand is induced so that the actual power consumption matches the selected power rate package, more accurate demand forecasting can be performed, and as a result, the power can be supplied to each consumer more inexpensively.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a power service system according to the present invention will be described in detail below with reference to FIGS.

FIG. 1 shows the overall configuration of this embodiment.

As shown in FIG. 1, in this embodiment, a power data transmission control system 37 and a power service server 1 are used.
1 and the terminal 21 for electric power companies. The power data transmission control system 37 is installed in each home or small-lot consumer (3a, 3b, 3c, ...) And has a function of transmitting the used power information 6 to the power service server 11. Further, the power service server 11 has a function of predicting the power demand based on the information transmitted from the power data transmission control system 37 and transmitting the bid condition 4 to the power provider terminal 21 through the Internet 8. .

FIG. 2 shows the configuration of the power data transmission control system 37.

As shown in FIG. 2, the electric power data transmission control system 37 installed in each home or small consumer (3a, 3b, 3c, ...)
5 power load, instantaneous data collecting device 33 for collecting instantaneous power consumed by each power load, instantaneous data collecting device 33
The power data collected by is processed and transmitted to the power service server 11 through the power line by power line carrier, and the power load of the refrigerator 34 and the air conditioner 35 is controlled by the signal transmitted from the power service server 11, A power data collection / control device 31 having a function of displaying alarm information 71 on a personal computer 32, and alarm information 71 and power usage information 61
Is configured by a personal computer or the like 32 for displaying.

The power service server 11 processes the power consumption information 6 sent from the power data transmission control system 37 installed in each home or small-lot customer (3a, 3b, 3c, ...). To do.

FIG. 3 shows functional blocks of the power service server 11.

As shown in FIG. 3, the power service server 1
1 is each home or small consumer (3a, 3b, 3c, ...
・ A function for accumulating in the power demand database 12 the used power information 61 sent from the power data transmission control system 37 and the data related to the power usage status obtained by the hearing, data analysis of the power demand database 12 64 to perform a long-term demand forecast 66 and a charge package setting 65 to derive a characteristic pattern of power consumption, and a short-term demand forecast 67 from the power consumption information 61.
The power consumption amount in each home or small consumer (3a, 3b, 3c, ...) Is predicted 68 from the function of performing power consumption and the power consumption information 61, and the household or small consumer (3a, 3a,
3b, 3c, ...) And the function of transmitting 69 alarm information 71 and load control signal 72 by comparing with the contract value 64 based on the charge package contracted.

Next, the functions of the power data transmission control system 37 and the power service server 11 in this embodiment will be described.

As shown in FIG. 2, the used power information 61 is transmitted to the power service server 11 by the power data transmission control system 37 installed in a general household or a small consumer (3a, 3b, 3c, ...). It

That is, first, the instantaneous data collecting device 33.
Collects the instantaneous electric power consumed by each electric power load such as the refrigerator 34 and the air conditioner 35, and collects and controls the instantaneous electric power data of each load by the electric power line carrier through the electric wiring in the home or the small-lot customer 3. Send to device 31. Next, the electric power data collection / control device 31 installs the received instantaneous electric power data of each load in the household or small consumer 3 in total instantaneous electric power and the amount of electric power every 30 minutes, and in the household or small consumer 3. Instantaneous electric power for each electric power load such as the refrigerator 34 and the air conditioner 35 and the electric power amount for every 30 minutes, etc. are processed, and the electric power data is collected as the electric power information 61 from the electric power data collection / control device 31 through the distribution line. It is transmitted to the power service server 11.

Here, the load control signal 7 between the power data collection / control device 31 and the instantaneous data collection device 33 is used.
2 and the used power information 61 are transmitted by the power line carrier, but the signal transmission during this period is performed by LAN or Bluetooth.
You may perform by h etc.

The electric power service provider 1 procures electric power based on the demand forecast made based on the electric power consumption information 61 sent from each home or small consumers (3a, 3b, 3c, ...). At the same time, depending on the setting 65 of the electricity charge package, each home or small consumer (3a, 3b, 3c, ...
・) Induction of power demand.

That is, as shown in FIG. 3, the power service server 11 is provided in each home or small consumer (3a, 3).
(b, 3c, ...) The power consumption information 61 is obtained from the power data collection / control device 31 installed in the above. Furthermore, data is collected by conducting an individual hearing about what kind of electric power load (home electric appliances) there is in each home or small-lot consumer (3a, 3b, 3c, ...) And how it is used. The power usage information 61 sent from the power data collection / control device 31 and the data collected by the individual hearing are accumulated in the power demand database 12 of the power service server 11.

The power service server 11 performs a data analysis 64 of the accumulated power demand database 12, and analyzes the past power consumption performance and power consumption characteristics of each household or small consumer 3, such as a certain household or small consumer. House 3 consumes very little power during the day, and other households or small consumers 3
Then, the long-term power demand forecast 66 is performed based on the characteristics of power consumption based on the difference in lifestyle of each household such that the power consumption increases at a certain specific time.

Next, the power service provider 1 procures power from the power provider 2 based on the long-term power demand forecast 66 obtained by the power service server 11.

Power can be procured cheaper if it is purchased earlier. Therefore, the power service server 11 analyzes the data in the power demand database 12 for one week based on the predicted value of the long-term power demand 66. Bid up to one month ago to procure electricity cheaply. That is, the power service server 11 transmits the predicted power amount based on the long-term power demand prediction 66 and the time when the power demand is predicted to occur to the power provider terminal 21 as the bid condition 4 via the Internet. Electric power company (2a, 2
(b, 2c, ...) Bid after seeing the information sent to the electric power company terminal 21. The power service company 1 selects the power company 2 that supplies the cheapest power from the bid result,
Procure electricity.

Generally, since the price of electric power is determined by the relationship between the demand and the supply, the unit price of electric power in summer / winter, when the demand increases, becomes high, and the price in spring / winter becomes low. Also, the unit price of electricity at night is lower than that at daytime when electricity demand is high. Therefore, these are taken into consideration when setting the bid condition 4. That is, the conditions are set so that the bid price can be changed depending on the season and the time zone.

Further, the power service server 11 makes a short-term demand forecast 67 based on the recent demand data from the customer one day to one hour before the power is actually used. Then, the predicted power amount based on the short-term power demand forecast 67 and the time when the power demand is predicted to occur are set as the bid condition 4 via the Internet to the power provider terminal 21.
Then, in the same manner, the power is “added” or “sold” by bidding. That is, since the actual power demand is not always the same as the forecast value one week ago to one month ago, the excess or deficiency of the demanded power can be calculated for each home or small consumer (3a, 3).
(b, 3c, ...) Based on the power consumption information 61 immediately before sent from b.

The power service server 11 also performs a data analysis 64 of the accumulated power demand database 12 to derive a characteristic pattern of power consumption. Then, in accordance with the derived characteristic pattern of power consumption, the power service provider 1 sets various power rate packages 65 in order to guide power demand. For example, “a fixed monthly fee is applied up to the set amount of electricity, and if it exceeds it, a high-priced rate is charged.”
Set the power rate package such as "Control from side 1".

Each home or small consumer (3a, 3b, 3
(c, ...) selects 63 of a power charge package suitable for each power consumption pattern, and the power service provider 1
Make a contract with. Then, according to the contracted power rate package, the power usage fee 62 according to the actual power consumption is paid to the power service provider 1.

The electric power thus procured is supplied from the selected electric power supplier 2 to ordinary households or small consumers (3a, 3b, 3c, ...) Through transmission and distribution lines.

On the other hand, the power data collection / control device 31 transmits the power usage information 61 in each home or small-lot consumer (3a, 3b, 3c, ...) To the power service server 11 by power line transmission moment by moment. At the same time, the power consumption information 61 is also displayed on the personal computer or the like 32 installed in each home or small consumer (3a, 3b, 3c, ...). Therefore, in each home, it is possible to refer to the power consumption of the home at any time.

The power service server 11 is used to send each home or small consumer (3a, 3b, 3c, ...
The power consumption amount within the period determined by the contract is predicted 68 from the power consumption information 61 in () for each consumer.
And the forecast value 68 and the contract value 64 based on the rate package
If the predicted value 68 exceeds the contract value 64 based on the charge package, for example, with a certain household or small-lot customer 3, “If the amount of power for 30 minutes does not exceed 5 kWh, Is fixed and the load such as the air conditioner is controlled from the side of the power service server 11 when it exceeds that. "
When the amount of power for 30 minutes is predicted to exceed 5 kWh in the home or small consumer 3, the power service server 11 automatically sends the alarm information 71 and the load control signal 72 to the corresponding home or by the power line carrier. The data is transmitted to the power data collection / control device 31 installed in the small-lot customer 3.

The electric power data collection / control device 31 which has received the alarm information 71 and the load control signal 72 transmits the load control signal 72 to the instantaneous data collection device 33 by electric power line transportation through the electric wiring of the home or the small-lot customer 3 and instantaneously. Through the data collection device 33, operations such as changing the set temperature of the refrigerator 34 and the air conditioner 35 and cutting off the load are performed. At the same time, the power data collection / control device 31 transmits alarm information 71 to the personal computer etc. 32 to display that the power consumption may exceed the contract.

Although the used power information 61 is collected by using power transfer here, it is not always necessary to use power transfer, and a PHS network or the Internet may be used. Further, the signal transmission from the instantaneous data collection device 33 to the power data collection / control device 31 does not necessarily need to be carried by the power line, and may be carried out by LAN, Bluetooth or the like.

Since the power service server 11 collects the used power information 61 by using the power carrier or the PHS network or the Internet, a large number of ordinary households or small customers (3a,
3b, 3c, ...) A large amount of data can be efficiently collected at high speed.

Further, since the power demand database 12 includes not only the power consumption information 61 but also the data data obtained by the hearing, it is possible to predict the power demand with high accuracy.

Further, based on the data analysis result of the power service server 11, the power service provider 1 sets various power charge packages 6 according to the characteristics of power consumption.
Do 5. Here, since the household or the small-lot consumer 3 tries to avoid paying an expensive fee by setting the electricity rate package, the electricity consumption exceeding the electricity amount specified by the contract is suppressed. Further, by directly performing load control from the power service server 11, it is possible to avoid power consumption above the set power.

As described above, the power consumption can be suppressed by the demand induction by the power rate package or the transmission of the alarm information and the load control signal to the home or the small-scale customer 3 in which the demand power may exceed. ,
It is possible to prevent an unexpected increase in power demand.

Since the contract form can be selected from various power rate packages, each home or small-lot customer (3a, 3)
b, 3c, ...), the range of choice of contract form will be expanded. On the other hand, once the power charge package is selected, the home or small-lot customer 3 who has selected the package tries to consume power according to the characteristics of the selected power charge package.
1 can more accurately predict the power consumption pattern of the household or small-lot consumer 3.

Since the power consumption pattern can be predicted more accurately, the bid condition 4 can be presented earlier based on the long-term demand forecast 66, so that inexpensive power can be procured.

Furthermore, by procuring electric power through bidding via the Internet, more electric power companies (2
a), 2b, 2c, ...), and the principle of competition between the electric power operators (2a, 2b, 2c, ...) works, so that the electric power service operator 1 is cheaper. Electricity can be procured.

On the other hand, the electric power unit price to be procured one day to one hour before the electric power is actually used, that is, immediately before the electric power is used, is expensive. However, the electric power set by the electric power charge package setting described above is set. Since the consumption of more than the specified amount is suppressed, the shortage value of the purchased power that is found immediately before becomes small. In addition, if the surplus of purchased power is found immediately before using the power, it is necessary to “sell” the surplus power. In such a case, surplus electricity is likely to be bought cheaply. However, since the demand can be induced by setting the power rate package, the accuracy of long-term power demand forecast of several months is high. Therefore, since the electric power is purchased in advance based on a highly accurate long-term electric power demand forecast, the generation of such surplus electric power can be suppressed to a small level.

When the predicted value 68 of the power consumption exceeds the contract value 64 based on the charge package, the power service server 11 transmits the alarm information 71, so the home or the small consumer 3 who receives the alarm information 71. Will make an effort to reduce the power load, and if it is still insufficient, the load control signal 72 will automatically reduce the power load, thus avoiding power consumption more than set in the contract. As a result, the customer does not have to pay the expensive electric power charge that must be paid when the contract value is exceeded, and as a result, the electric power can be purchased cheaply. Also,
Since the power service provider 1 can prevent an unexpected increase in power demand, the accuracy of long-term power demand forecasting is improved, and it is possible to reduce the purchase of high-priced power immediately before the use of power. .

[0046]

As described above, according to the electric power service system of the present invention, the electric power demand pattern of each customer can be grasped and the demand forecast can be accurately made based on the grasped electric power demand pattern. . Further, since the power charge package is set based on the grasped power demand pattern, each consumer can select the power charge package that best matches the power demand pattern. Here, since the demand is induced so that the actual power consumption matches the selected power rate package, more accurate demand forecast can be performed. Then, by procuring electric power through a bid based on accurate demand forecast, it is possible to supply electricity to each consumer at low cost.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing an embodiment of a power service system according to the present invention.

FIG. 2 is a diagram showing a configuration of a power data collection and transmission control system 37.

FIG. 3 is a diagram showing functional blocks of a power service server 11.

[Explanation of symbols]

1 electricity service providers 2a, 2b, 2c Electric power company 3a, 3b, 3c Ordinary home or small consumer 4 Power demand information (conditions for bidding) 5 bids 6 Power usage information, etc. 7 alarms, etc. 8 Internet 11 Power service server 12 Electricity demand database 21 Power company terminal 37 Electric power data transmission control system

Continued front page    (72) Inventor Katsunori Miura             66-2 Horikawa-cho, Saiwai-ku, Kawasaki-shi, Kanagawa             Within IT Solution Co., Ltd. (72) Inventor Hiroyuki Sugai             66-2 Horikawa-cho, Saiwai-ku, Kawasaki-shi, Kanagawa             Within IT Solution Co., Ltd. (72) Inventor Yuji Nakata             1-1 Shibaura, Minato-ku, Tokyo Co., Ltd.             Toshiba headquarters office F-term (reference) 5G066 AA02 AE03 AE07 AE09 HA17                       HB02

Claims (5)

[Claims] 1. In an electric power service system for procuring electric power from an electric power supplier and supplying electric power to a customer, a means for collecting the electric power load status of the customer, and a power load status of the customer And a means for setting a charge package according to the power demand pattern of each customer, based on the power load situation of the customer, based on the demand forecast made in And, when it is expected that the power consumed by the consumer exceeds the limit value of the power defined by the charge package from the state of the power load of the consumer, an alarm is notified to the consumer. Alternatively, a power service system having means for executing at least one of cutoff and increase / decrease of load. 2. The means for collecting the power load status of the customer collects from each customer via any one of a power line carrier, a PHS network, the Internet, or a combination thereof. The electric power service system according to 1. 3. The electric power procuring means presents the predicted electric energy and the period to the electric power company via the Internet, while procuring from the lowest price electric power company by bidding. Alternatively, the power service system according to claim 2. 4. The power service system according to claim 1, wherein the load is cut off or increased or decreased via a power line carrier, a PHS network, the Internet, or a combination thereof. 5. A function of collecting the status of the power load of each customer through the power line carrier, the PHS network, the Internet, or a combination thereof, and the power demand of each customer from the status of the power load. From the function of predicting the power demand of the entire consumer and the power load situation in the consumer, predict the power consumed by the consumer,
When the predicted power exceeds the power limit value set in the tariff package for the customer, the alarm signal is sent and / or the signal is sent to cut off or increase / decrease the load. A server applied to the power service system according to any one of claims 1 to 4, characterized in that it has.