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Power quality monitoring method and device

A power quality monitoring and power quality technology, applied in the field of electric power, can solve the problems of poor interactivity and versatility of power quality data, and achieve the effects of solving stability and scalability, ensuring interactivity, and realizing integration

Inactive Publication Date: 2014-01-15
STATE GRID CORP OF CHINA +1
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Problems solved by technology

[0005] The present invention aims to provide a power quality monitoring method and device to solve the problem of poor interactivity and versatility of power quality data in the prior art

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  • Power quality monitoring method and device

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Embodiment Construction

[0023] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0024] An embodiment of the present invention provides a power quality monitoring device, figure 1 is a schematic diagram of a power quality monitoring device according to an embodiment of the present invention, such as figure 1 As shown, the power quality monitoring device of the embodiment of the present invention includes: an acquisition module 11, used to collect the voltage and current of the monitoring point in the substation; a calculation module 13, used to calculate the power quality data of the monitoring point according to the voltage and current; The storage module 15 is used to store the power quality data in the preset power quality data information model; the output module 17 is...

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Abstract

The invention provides a power quality monitoring method which comprises the steps that voltages and currents of a monitoring point in a transformer substation are collected; according to the voltages and the currents, power quality data of the monitoring point are obtained by computing; the power quality data are stored in a preset power quality data information model; the power quality data stored in the power quality data information model are output in a mapping mode according to the made message of an abstract communication service interface. The consistency of the power quality data information model is used for guaranteeing the universality of the power quality data, and meanwhile the power quality data are output in the mapping mode according to the made message of the abstract communication service interface, so that the contradiction between the stability and the expansibility of a communication protocol is resolved, the interactivity between power quality monitoring device data of different manufacturers is guaranteed, the future expansibility is guaranteed, and meanwhile integration of different monitoring devices is achieved to the largest degree. Accordingly, the problem the in the prior art, the interactivity and the universality of power quality data are poor is solved.

Description

technical field [0001] The invention relates to the field of electric power, in particular to a method and device for monitoring power quality. Background technique [0002] With the higher and higher requirements for power quality of electrical equipment, power quality monitoring has become an important part of substation intelligent monitoring. However, the current digital substation has become the development trend of substation monitoring in recent years. The digital substation system based on IEC61850 has gradually matured, but IEC61850 does not cover the field of power quality detection, which affects the use of power quality monitoring in IEC61850 digital substations. Caused the lack of function of power quality monitoring in the substation. [0003] In order to solve the above problems, the current solution is to independently develop a separate power quality monitoring device for collection, processing, and uploading in the existing digital substation, which not on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00
Inventor 于希娟杜晨红周作春赵贺李华春马慧远刘长树
Owner STATE GRID CORP OF CHINA
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