JP2005348541A5

JP2005348541A5 -

Info

Publication number: JP2005348541A5
Application number: JP2004166192A
Authority: JP
Filing date: 2004-06-03
Publication date: 2006-09-28
Anticipated expiration: 2024-06-03

Claims

Each power line based on the measurement data of the wattmeter or watt hour meter provided in each power line constituting the branching or merging part of the power system and the power flow relational expression of each power line in the branching or merging part The validity determination method of the measurement data of the electric power or electric energy which determines the validity of the said measurement data in.

The power flow relational expression is compared with the measurement data of each electric power or watt hour meter, and the validity of the measurement data of each electric power or watt hour meter is determined based on whether or not it is within an allowable value range. The validity determination method of the measurement data of electric power or electric energy as described in 1.

2. The method of determining validity of measurement data of electric power or electric energy according to claim 1, wherein the power flow relational expression takes into account the loss of each power line.

Transmitting means for transmitting the measurement data of the wattmeter or the watt hour meter provided in each power line constituting the branching section or the merging section of the power system and the measurement abnormality status data at the time of the measurement abnormality of the watt meter or the watt hour meter A receiving means for receiving the measurement data and the measurement abnormality situation data transmitted from the transmission means, a measurement data table for storing the measurement data received by the reception means, and the measurement abnormality situation data are stored. A measurement abnormal situation data table, a database storing a power flow relational expression for each power line of the branching section or the merge section, and the measurement data stored in the measurement data table based on the power flow relational expression read from the database Determination means for determining the validity of the measurement abnormality status data stored in the measurement abnormality status data table. Power or electric energy measurement system comprising includes a determining means for determining validity of the data.

Measured data of electric power or electric energy measured by an electric power meter or electric energy meter provided in each electric power line constituting a branching part or a confluence part of the electric power system and transmitted through a data transmission line, and the electric power meter or the electric energy meter Receiving means for receiving measurement abnormality situation data detected and transmitted via the data transmission path, a measurement data table for storing the measurement data received by the reception means, and the measurement abnormality situation data are stored. The measurement abnormal situation data table, the database storing the power flow relational expression of each power line of the branching section or the merge section, and the measurement stored in the measurement data table based on the power flow relational expression read from the database Determination means for determining the validity of the data, and the measurement abnormality stored in the measurement abnormality situation data table Power or electric energy measurement system comprising includes a determining means for determining validity of the status data.

The database stores loss data of each power line,
6. The power or power amount measurement system according to claim 4, wherein the determination unit determines the validity in consideration of the loss data of each power line read from the database.

When the determination unit determines that the measurement data of each power line of the branching unit or the merging unit is not valid, an abnormality of the wattmeter or the watt hour meter provided in each power line of the branching unit or the merging unit is displayed. 6. The electric power or electric energy measurement system according to claim 4 or 5, wherein the output is displayed on the unit.

When the determination unit determines that the measurement data of each power line of the branching unit or the merging unit is not valid, the measurement data relating to the wattmeter or the watt-hour meter determined to be invalid in a plurality of power flow relational expressions 8. The power or power amount measurement system according to claim 7, wherein the measurement data in the table is rewritten to calculation data calculated based on the power flow relational expression.

When the determination means determines that the measurement data of each power line is not valid from the measurement abnormality status data of the wattmeter or watt-hour meter, a wattmeter or power 6. The measurement system for electric power or electric energy according to claim 4, wherein an abnormality of the meter is output and displayed on a display unit.

When the measurement abnormality status data of the wattmeter or watt hour meter is input, the determination unit calculates the measurement data of the measurement data table related to the watt meter or watt hour meter based on the tidal current relational expression. The electric power or electric energy measurement system according to claim 9, wherein the electric power or electric energy measurement system is rewritten to the calculated data.

11. The measurement data according to claim 4, wherein a reading value of a reading device that reads an indication value of the power meter or the watt hour meter is taken into the receiving unit via the transmission path. 11. The power or power measurement system described in 1.

In the case of a watt hour meter, the watt hour meter or the watt hour meter reads the power amount data using a speed sensor capable of detecting the rotation of the internal rotating body from the outside without contact. The power or power amount measurement system according to claim 11.

11. The power or power according to claim 4, further comprising charge calculation means for creating a file of a power charge based on the measurement data stored in the measurement data table. Quantity measuring system.

The said charge calculation means calculates the electric charge imposed on each electric power consumer from the information which shows the electric power seller with whom the electric power consumer has contracted, and the information of the electric power supplier's charge system. 13. The power or power measurement system according to 13.