KR20100132662A - Method of managing transformer using power load pattern - Google Patents

Abstract

PURPOSE: A management of transformer using information about a power consumption pattern of a receiving home is provided to predict overload or lifetime of transformer in transform management server based on maximum load power information, thereby effectively managing the lifetime of the transformer. CONSTITUTION: A transformer management server receives power consumption pattern information from watt-hour meter installed to power receiving home. The transformer management server generates maximum load power information through power consumption pattern information. Based on maximum load power information, the transformer management server determines generation of overload of the transformer or predicts the lifetime of the transformer, the transformer supplies the power to the power receiving home.

Description

Transformer management using customer power consumption pattern information {METHOD OF MANAGING TRANSFORMER USING POWER LOAD PATTERN}

The present invention relates to a technique for managing a transformer.

Transformers are one of the equipment for powering homes. If a transformer fails, many homes cannot be powered. Therefore, it is very important to predict and manage the remaining life of the transformer.

However, conventionally, there is no method for estimating and managing the lifetime of a transformer, and thus, an unstable power supply network must be used.

It is an object of the present invention to efficiently manage the life of a transformer.

Receiving the power consumption pattern information from the electricity meter installed in the power consumer to achieve the above object and the problem of the prior art, generating the maximum load power information using the power consumption pattern information, the maximum load power information And determining whether an overload occurs in a transformer that supplies power to the power consumer or predicting a life of the transformer.

According to the present invention it is possible to efficiently manage the life of the transformer.

Information about the power consumption generated by each customer can be used for efficient management of the transformer.

For example, if two consumers are connected to one transformer, if consumers 1 and 2 show the daily power consumption pattern as shown in Fig. 1, the power consumption of the two customers is the maximum at about 15 o'clock. It can be seen that P1 + P2, it can be determined whether or not the P1 + P2 is overloaded to the rated capacity of the transformer.

In this way, by integrating the power consumption pattern information of each customer connected to the secondary side of a transformer, the maximum load on the secondary side of the transformer can be calculated, and based on this, it is possible to determine whether or not the transformer is overloaded. have.

Using the load profile information transmitted by the electricity meter installed in the power consumer, the maximum load power information applied to the transformer load side can be calculated, and based on this, management such as whether the transformer is overloaded and the life prediction can be performed. .

The configuration of the transformer management system for providing the transformer management method described above is as follows. The transformer management system receives power consumption pattern information for each customer and generates transformer management information such as heavy load information, overload status, and predicted life span, and a transformer management server and a transformer monitoring network and an AMI (Advanced Metering Infrastructure). It may include a gateway (G / W) that connects the network.

As shown in the figure, the transformer monitoring device is installed on the distribution line and is connected to the network for transformer monitoring through a communication device. The communication device may be internal or external.

The transformer management server stores information such as the capacity of all transformers to be managed, and collects power consumption pattern information for each customer that is the load of the transformer for each transformer, and based on this, the maximum load information and overload of the transformer are generated. Generates information such as whether or not, life expectancy and provide it to the user.

Distribution-AMI linkage G / W receives and converts the information transmitted by the electricity meter installed in the customer through the AMI network and transmits it through a separate network.

Power consumption pattern information of each customer is generated by the electricity meter installed in the customer, and this information is transmitted to the AMI operation server through the AMI network in principle. In order to use this power consumption pattern information for transformer management, the distribution-AMI linked G / W must collect the information and transmit it to the transformer management network.

There are two ways in which distribution / AMI-linked G / W collects customer information. One method is to connect G / W directly to AMI network and receive information directly from customers. G / W is connected to a system that acts as a data collection device within the AMI server to receive data collected and stored by the system.

Receives the power consumption pattern information transmitted by the electricity meter and calculates the load-side maximum load power information for each transformer, determines whether the overload occurs relative to capacity, and predicts the life of the transformer to generate and provide comprehensive information for transformer management. Can be.

1 is a diagram illustrating a power consumption pattern of each home over time.

2 is a diagram illustrating a transformer management system for providing a transformer management method according to an exemplary embodiment of the present invention.

Claims (1)

Receiving power consumption pattern information from a power meter installed in the power consumer; Generating maximum load power information using the power consumption pattern information; Determining whether or not an overload occurs in a transformer that supplies power to the power consumer based on the maximum load power information or predicting a life of the transformer Transformer management method comprising a.

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