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Monitoring system and monitoring method for switching process of shunt power capacitor

A technology of capacitor switching and power capacitors, applied in the direction of measuring resistance/reactance/impedance, instruments, measuring electricity, etc.

Active Publication Date: 2013-02-13
YUN NAN ELECTRIC TEST & RES INST GRP CO LTD ELECTRIC INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, in the field of capacitor operation monitoring research, there have been many studies on capacitor operation status and partial discharge monitoring, but there are few reports on capacitor switching process monitoring.

Method used

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  • Monitoring system and monitoring method for switching process of shunt power capacitor
  • Monitoring system and monitoring method for switching process of shunt power capacitor

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Embodiment Construction

[0022] Such as figure 1 Shown is the system frame diagram of the present invention. The capacitor switching process monitoring system consists of a power quality monitoring terminal, a data storage unit and a capacitor switching process monitoring module.

[0023] Such as figure 2 Shown is a schematic diagram of the switching process monitoring technical solution of the present invention. The capacitor switching process monitoring system proposed in the present invention is mainly composed of a power quality monitoring terminal, a data acquisition module and a capacitor switching process monitoring module.

[0024] The time of occurrence is extracted from the transient data of capacitor switching and associated with the steady-state power quality data. The steady-state data can be divided into the steady-state data before switching and the steady-state data after switching. Through the analysis of these two types of data Analysis can be used to obtain comparative analysis ...

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Abstract

The invention discloses monitoring system and monitoring method for switching process of a shunt power capacitor. The monitoring system comprises a power quality monitoring terminal, a data storage unit and a capacitor switching process monitoring module; the power quality monitoring terminal is used for realizing collection on steady-state power quality data and transient-state power quality data; the data storage unit is used for storing data uploaded by the power quality monitoring terminal; and the capacitor switching process monitoring module is used for realizing data analysis, and the content of the main technology comprises reactive power / voltage / power factor variation statistics, reactive power / voltage / power factor trend analysis, transient-state event graphic analysis, capacitor switching time number statistics, and harmonic impedance computation.

Description

technical field [0001] The invention relates to an operation monitoring system and a monitoring method of a parallel power capacitor, in particular to the technical field of a switching process monitoring system and a monitoring method of a parallel power capacitor. Background technique [0002] Shunt power capacitors are important reactive power compensation equipment in power systems. Parallel power capacitors play an important role in improving the power factor of the grid and improving the voltage quality of the grid. The input or removal of capacitors, that is, capacitor switching, is one of the most common power equipment operating operations in power systems. Putting in parallel capacitors can compensate system reactive power and improve bus voltage and power factor; on the contrary, removing parallel capacitors can reduce bus voltage and power factor. [0003] At present, in the field of capacitor operation monitoring research, there have been many studies on capac...

Claims

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Application Information

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IPC IPC(8): G01R31/00G01R27/08
Inventor 郭成
Owner YUN NAN ELECTRIC TEST & RES INST GRP CO LTD ELECTRIC INST
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