JP2003153466A - Method and system for supplying energy - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to control power supply limitation remotely. SOLUTION: A management center 2 collects the used power and the payment of electric rate of a consumer 1 automatically, confirms presence of a defaulter based on that data, and delivers a switching control signal to that consumer 1. Consequently, the defaulter is switched from a contract capacity FFB 301 to a limit capacity FFB 302 through a switch 304 and supply is limited.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an energy supply system, and more particularly to a system for limiting energy supply to a customer who is behind in payment of charges.

[0002]

2. Description of the Related Art In some Asian countries, if a user who is behind in using charges for energy supply is delinquent, he / she is replaced by a breaker of the minimum supply amount, for example, in case of people behind in electricity charges. This provides the minimum capacity to protect basic human rights.

[0003]

However, in the conventional method, since the work of replacing the breaker is required every time a delinquent person is generated, it is troublesome and expensive. In addition, it is not possible to promptly limit the power supply to delinquents.

In view of the problems of the prior art, it is an object of the present invention to provide an energy supply method and device which does not require replacement work of a breaker or the like and can accurately and promptly perform energy supply restriction for delinquents. To do.

[0005]

The present invention for achieving the above object provides a method of supplying energy to a plurality of contractors each having a contract energy amount set within the range of the contract energy amount. The energy consumption is read from the energy meter of each consumer and the payment status of the energy charge is monitored, and the contracted amount, which is the minimum human rights supply amount, is set for the unpaid contractor of the energy consumption. It is characterized in that the amount of energy used is limited to the limit capacity or less.

The energy consumption is monitored by the average consumption, and the energy supply is cut off when the average consumption exceeds the limited capacity for a certain period. Further, the setting of the limited capacity is performed after the warning signal is notified. In the above, the energy is electricity, water, steam or gas.

The power supply device of the present invention supplies electric power from the electric power system to each customer having a contracted capacity FFB (fuse free breaker) and an electric energy meter, and uses the electric power of each customer via a network. In a system provided with a management center for monitoring the amount of electricity, the customer is provided with a switching device for limiting the limit capacity FFB and the power system, and the management center is left unpaid based on the amount of power used by each customer and the charge delivery status. A billing computer for monitoring the presence / absence of a subscriber and a switching device for an unpaid person from the contracted capacity FFB to the limit limit capacity F
It is characterized in that a control means for switching to the FB is provided.

Alternatively, in the management center, a billing computer for monitoring whether or not there is an unpaid person based on the amount of electric power used by each consumer and the status of charge delivery, and a limited amount of use for the unpaid person are set, and the average amount of electric power used is set. A control means is provided for shutting off the FFB when the limited usage amount is exceeded for a certain period.

According to the present invention, when there is a delinquent person, the switching device is controlled from a distant position of the two FFBs having different capacities to switch to the FFB having the above-mentioned limit capacity and the energy supply is limited to the limit capacity. To do. Or, after setting the limit capacity for delinquents, FFB from afar
Is controlled to limit the energy supply, and when the measurement result of the average usage exceeds the limit capacity, the FFB is shut off.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION An energy supply method of the present invention will be described with reference to the drawings. 1 and 2 show a power supply system according to the first embodiment.

The customer 1 is provided with a contracted capacity FFB301, a limited limit capacity FFB302, and a watthour meter with an automatic cut-off function (not shown). Electric power supplied from the power grid 3 is supplied to the contracted amount FFB301 and the limited limit capacity FFB302. Which one is to be passed is automatically switched by controlling the FFB switching device 304 by a switching control signal transmitted from the management center 2 described later.

The power consumption of the customer 1 is measured by the power meter 303, and the power consumption data is transmitted to the management center 2 and stored in the database 102 of the management center 2. The management center 2 calculates a power charge from the amount of power used measured by the power meter 303 and sends it to the financial institution 4.
The communication of the power consumption and the switching control signal between the customer 1 and the management center 2 is performed using a power line carrier device (not shown).

To notify the financial institution 4 of the electricity charge, a computer or terminal (not shown) installed in the consumer 1 and a computer 5 installed in the financial institution 4 are connected by the Internet or a communication line to use the consumer. The amount of electric power may be calculated by a consumer's computer or terminal and transmitted to the financial institution 4.

The payment status of the electricity charge of the customer 1 is managed by the management computer 201 of the financial institution 4, and the management status is stored in the database 102 of the management center 2. The financial institution 4 and the management center 2 are connected by the Internet or a communication line. The management center 2 reads the payment status of the electricity charge of the customer 1 into the database 102 of the charging system control computer 101 as payment status data, and determines whether or not there is a delinquent person.

When a delinquent person occurs, the management center 2
Switching control signal is transmitted from the contract dose FFB30
The limit switching capacity FFB 302 is automatically switched from 1. When the delinquent person pays the unpaid fee to the financial institution 4 and solves the delinquency, the management center 2 transmits a switching control signal, and the limit capacity FFB302 causes the contracted capacity F to disappear.
Switch to FB301.

Electricity meter 30 of customer 1 with automatic shut-off function
The power consumption is measured by 3 and the power consumption is FFB301.
When it exceeds the capacity of, the FFB 301 is automatically shut off. The customer 1 re-inputs the FFB 301.

FIG. 2 shows a method of limiting the amount of electric power used by delinquent persons. In step 101, it is determined from the electricity bill payment status data whether or not a delinquent person has occurred and whether the delinquency has been resolved. Step 1 if you are not a delinquent
In 04, the power consumption is compared with the contracted capacity of the FFB 301, and if the power consumption exceeds the contracted capacity, the FFB 301 is shut off in step 105.

On the other hand, if a delinquent person is generated, a warning signal is sent to the customer 1 in step 102, and the contracted capacity FFB 301 limits the limit capacity F in step 103.
Switching to the FB 302 is performed. As a result, the limit limit capacity FFB is set, and the capacity is switched to the minimum capacity that protects basic human rights.

Step 104 when a delinquent person occurs
Shuts off the FFB 302 when the power usage measured by the power meter 303 exceeds the limit capacity. The customer 1 also re-inputs the FFB 302.

Next, another embodiment of the power supply device will be described. FIG. 3 shows a power supply system according to the second embodiment. In this embodiment, a watt-hour meter 303 and a contracted dose FFB301 are integrally provided in the consumer 1, the power consumption is transmitted from the watt-hour meter 303 to the management center 2, and an FFB cutoff control signal is sent from the management center 2. Contract dose FFB30
It is configured to be transmitted to one. It is also possible to transmit a warning signal from the management center 2 to the customer 1.

The power consumption of the customer 1 is measured by the power meter 303, and the power consumption data is transmitted to the management center 2 and stored in the database 102 of the management center 2. The management center 2 transmits the electric power charge to the financial institution 4 based on the amount of electric power used measured by the electric energy meter 303. The management computer 2 of the financial institution 4 displays the payment status of the electricity charge of the customer 1.
01, and the management status is stored in the database 102 of the management center 2. The management center 2 reads the power consumption of the customer 1 into the database 102 of the charging system control computer 101 of the management center 2, calculates the average power consumption based on the power consumption data, and then the database 10
Store in 2. The financial institution 4 and the management center-2 are connected by the Internet or a communication line.

Charging system control computer 101 of the management center 2
Is the database 1 of the payment status of the electricity charge of the customer 1.
It is read from 02 and it is judged whether or not there is a delinquent person. When there is a delinquent person, the management center 2 changes the threshold value setting of the charging system control computer 101 from the contract average usage amount to the limit limit average usage amount. When the delinquent person pays the power bill to the financial institution 4 to eliminate the delinquency, the management center 2 changes the setting of the limit limit average usage amount to the setting of the contract average usage amount.

When the power usage exceeds the average usage set by the management center 2, the management center 2 sends an FFB cutoff control signal to cut off the FFB 301. The customer 1 re-inputs the FFB 301.

FIG. 4 shows a method of limiting the amount of electric power used by delinquent persons. In step 201, it is determined from the electricity bill payment status data whether or not a delinquent person has occurred and whether the delinquency has been resolved. When a delinquent person is generated, a warning signal is transmitted to the consumer in step 202. Next, in step 203, the setting of the limit average usage amount is changed from the contract average usage amount.

At step 204, the charging control computer 1
When the average power consumption calculated by 01 exceeds the limit power consumption set corresponding to the FFB 301, the FFB cutoff control signal is transmitted from the management center 2 in step 205 to cut off the FFB 301. In addition, the limited usage amount when there is no delinquent is the contracted electric energy, and the limited usage amount when there is a delinquent is the limited marginal average usage amount.

According to the above first and second embodiments, the following effects can be obtained. (1) There is no need for on-site work to switch the amount of power supply, which can reduce work time and cost, and set supply restrictions.
Release control can also be performed quickly and accurately. (2) By combining the power restriction function with the prepaid billing / collection operation, the non-payment rate of the power charge can be reduced (the charge collection rate can be increased). (3) From the standpoint of basic human rights, it is possible to supply the minimum amount of electricity necessary for people who do not pay their electricity charges.

Next, a third embodiment of the present invention will be described.
FIG. 5 is a configuration diagram of a water supply device to which the energy supply method of the present invention is applied. The difference from FIG. 1 is a water meter 403 provided in the customer 1, a contract capacity valve 401, and a limit capacity valve 402. In the customer 1 who has paid the water charge, the contract capacity valve 304 is the switching device 3
It is connected to the pipeline network 5 via 04.

The management center 2 is a water supply meter 4 for the customer 1.
The amount of water used is automatically metered from 03 and stored in the database 102 using a power line carrier (not shown).
In addition, the water charge payment status from the financial institution 4 is stored in the database 102 through the network. The control computer 101 of the management center 2 reads the database 102, searches for the customer 1 who is delinquent in water charges, and transmits a switching control signal to the customer 1 who is delinquent using the power line carrier. . As a result, the switching device 304 switches to the limit capacity valve 402, and the water supplied to the consumer 1 becomes less than the limit capacity.

When the customer 1 pays the delinquent water charge, the control system computer 101, which confirms this, sends a switching control signal to the customer 1, and the switching device 304 switches to the contract capacity valve 401 again. The limit capacity is the minimum amount of water required to protect basic human rights.

According to the present embodiment, a water meter with automatic meter reading, a contract capacity valve and a limit capacity valve, a switching device for switching between the two valves and the water pipeline network is installed in the customer, and the management center is installed. Collects water usage and charge payment status and switches delinquent valves to the limit capacity.
Water supply to delinquents can be quickly restricted. Moreover, since it can be automatically executed via the power line carrier, it is not necessary for the operator to take trouble.

Although the present embodiment is a water supply system, it goes without saying that the same can be realized as long as it supplies gas, steam or the like using a pipeline network.

[0032]

According to the present invention, the on-site work for switching the energy supply amount is eliminated, the work time and cost can be reduced, and the setting / releasing of the supply limit can be controlled quickly and appropriately. effective. In addition, from the viewpoint of basic human rights, it has the effect of enabling the supply of energy that enables a minimum of living.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a power supply system that is a first embodiment of the present invention.

FIG. 2 is a flowchart for limiting power of a delinquent person in the first embodiment.

FIG. 3 is a configuration diagram of a power supply system that is a second embodiment of the present invention.

FIG. 4 is a flowchart for limiting power of a delinquent in the second embodiment.

FIG. 5 is a configuration diagram of a water supply system that is a third embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Consumer, 2 ... Management center, 3 ... Electric power system, 4 ... Financial institution, 5 ... Pipeline network, 101 ... Charging system control computer, 10
2 ... Database, 201 ... Charge management computer, 301 ...
Contract capacity FFB, 302 ... Limit limit capacity FFB, 303
... Electricity meter, 304 ... Switching device, 401 ... Contracted capacity valve, 402 ... Limited capacity valve, 403 ... Water meter.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) H04Q 9/00 311 H04Q 9/00 311H 341 341A (72) Inventor Yoichi Machiya Omikacho 5-chome, Hitachi City, Ibaraki Prefecture 2-1 Incorporated company Hitachi, Ltd. Information Control System Division (72) Inventor Tominobu Uchida 5-2-1 Omika-cho, Hitachi City, Ibaraki Prefecture F-Term (Reference), Hitachi Ltd. Information Control System Division 5G064 AA09 AC01 AC06 AC09 BA01 CB08 CB11 DA05 5G066 KA01 KA11 KB06 KD10 5K048 AA05 BA32 DA02 DC06 EB02 EB10

Claims (7)

[Claims] 1. A method of supplying energy to a plurality of contractors, each of whom has a contract energy amount, within the range of the contract energy amount, by reading the energy usage amount from the energy meter of each consumer. Along with that, the payment status of the energy fee is monitored, and a limit capacity, which is the minimum supply amount, is set for the unpaid contractor of the energy usage amount, and the subsequent energy usage amount is limited to the above-mentioned limit capacity or less. Energy supply method. 2. The energy supply method according to claim 1, wherein the energy usage is monitored by an average usage, and the energy supply is cut off when the average usage exceeds the limit capacity for a certain period. . 3. The energy supply method according to claim 1, wherein the limit capacity is set after a warning signal is notified. 4. The energy supply method according to claim 1, wherein the energy is electricity, water, steam or gas. 5. A power supply apparatus comprising a management center for supplying electric power from a power system to each customer having a contracted capacity FFB and a watt hour meter, and for monitoring the power consumption of each customer via a network, A limiter capacity FFB and a switching device for the electric power system are provided in the customer, and a billing calculator for monitoring whether or not there is an unpaid person based on the amount of electric power used by each customer and the charge delivery status in the management center. An electric power supply device for a person who is provided with a control computer for switching the switching device from the contracted capacity FFB to the limit limit capacity FFB. 6. A power supply device comprising a management center for supplying power from a power grid to each customer having an FFB and a watt hour meter, and for monitoring the power usage of each customer via a network. At the center, a billing calculator that monitors whether or not there is an unpaid person based on the amount of electricity used by each customer and the status of payment of charges, and a limited amount of consumption is set for the unpaid person, and the average amount of electricity used keeps the limited amount of use for a certain period. A power supply device comprising a control computer that shuts off the FFB when exceeding the limit. 7. The network according to claim 5 or 6, wherein the network connecting the management center and the customer in the previous period is:
A power supply device characterized by being configured using a power line carrier.