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Electric energy quality indication device and electric power monitoring equipment

A technology of power quality and indicating devices, which is applied in the field of power systems, can solve problems such as difficulties in power quality data, and achieve the effects of less storage space, easy understanding, and quick query of historical records

Inactive Publication Date: 2009-01-14
SIEMENS AG
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  • Abstract
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Problems solved by technology

[0007] The present invention aims to provide such a device as described above to solve the above-mentioned difficulties in understanding power quality data

Method used

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  • Electric energy quality indication device and electric power monitoring equipment
  • Electric energy quality indication device and electric power monitoring equipment
  • Electric energy quality indication device and electric power monitoring equipment

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Embodiment Construction

[0022] The invention provides a power quality indicating device and a power monitoring device comprising the power quality indicating device. The power quality indicator device of the present invention acquires and calculates power quality parameters, evaluates these parameters by using the existing power quality comprehensive evaluation method, and grades the evaluation results, and then presents the graded results in a visual or voice form to the user. Optionally, the power quality indicating device of the present invention can also store the grading results, so as to facilitate statistics and analysis in the future.

[0023] figure 1 A schematic diagram of the power quality indicating device according to the present invention is shown. The power quality indicator device of the present invention includes a control unit and an indicator unit. The control unit is used to calculate the input power data, such as voltage, current, etc., to obtain a series of power quality para...

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Abstract

The invention provides a power quality indicating apparatus and power monitoring equipment comprising the power quality indicating apparatus; the power quality indicating apparatus of the invention comprises a control unit used for acquiring power quality parameters, evaluating the parameters with the existing power quality comprehensive evaluation methods and classifying the evaluation results and an indicating unit used for presenting the classified evaluation results through vision or voice means for users. Optionally, the power quality indicating apparatus of the invention also comprises a storage device used for storing the classified results for the later statistics and analysis. Adopting the power quality indicating apparatus provided by the invention leads the power quality data to be understood easily so as to help non-specialist users directly learn about the power quality.

Description

technical field [0001] The invention relates to a power system, in particular to a power quality indication technology in the power system. Background technique [0002] Now, as more and more non-linear devices are used in the power system, the problem of power quality deterioration often occurs in the power system. On the other hand, end-user equipment is becoming increasingly sensitive to power quality disturbances from the utility grid and non-linear equipment adjacent to the user. Therefore, power quality has become an important factor considered by the power sector and power users in recent years, especially users who are sensitive to power quality, such as the semiconductor industry and other high-tech industries. [0003] On the user side, various power measurement and monitoring equipment and systems are gradually being applied to power distribution systems to monitor power quality parameters or analyze various power quality problems, such as voltage, current, harmo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00G01R31/42
Inventor 胡飞凰汤光强俞毅刚谢挺李剑铎卓越
Owner SIEMENS AG
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