A high-precision and high-bandwidth power quality detection device and measurement method

A technology of power quality and detection device, applied in the direction of measurement device, measurement of electricity, measurement of electric variables, etc., to achieve the effect of strong professional technology, light portability, and optimized system structure

Active Publication Date: 2019-07-19
CHINA ELECTRIC POWER RES INST +1
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Problems solved by technology

According to this demand, there is a need for a high-precision, high-bandwidth continuous and undistorted measurement conversion device. At present, there is no detection method and system that takes into account both high-precision and high-bandwidth measurement, which is suitable for high-power energy storage and conversion equipment. Performance Testing and Evaluation

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  • A high-precision and high-bandwidth power quality detection device and measurement method
  • A high-precision and high-bandwidth power quality detection device and measurement method

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Embodiment Construction

[0043] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0044] Such as figure 1 As shown, the present invention provides a high-precision and high-bandwidth power quality detection device, which includes the following parts:

[0045] Front-end sensing module, measurement module, power quality analysis storage module, automatic range recognition conversion module, auxiliary display module, remote communication module, auxiliary test module, analog test module, background analysis module, etc.

[0046] The front-end sensing module includes an AC current sensing module, a DC current sensing module, a precision AC voltage conversion module and a DC voltage sensing module; the AC current sensing module uses 0-400A and 0-800A Hall sensors; the DC current sensing module Hall sensors with measurement ranges of ±750A, ±1500A and ±3000A are connected to the device under test through a safe quick-connect socket for fast col...

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Abstract

The invention provides a high-precision and high-bandwidth power quality detection device and a high-precision and high-bandwidth power quality measuring method. The high-precision and high-bandwidth power quality detection device comprises a simulation testing module, a front-end sensing module, a measuring module, an automatic measuring range recognition and conversion module, a power quality analysis storage module, a background analysis module and a remote communication module, wherein the simulation testing module is used for performing precision calibration on a measuring conversion signal of energy storage convertor equipment, and conducting a simulation test on functions of the energy storage convertor equipment by means of a switching switch; the front-end sensing module is used for acquiring AC / DC current and AC / DC voltage of detected equipment rapidly; and the measuring module is used for measuring the current and the voltage of the detected equipment. The high-precision and high-bandwidth power quality detection device and the high-precision and high-bandwidth power quality measuring method have the advantages of being capable of satisfying requirements for precision and bandwidth in measurement, detection and qualitative analysis, having good professional skill and being convenient to carry, and achieve the purpose that the energy storage convertor equipment can be comprehensively detected by a single conversion device.

Description

technical field [0001] The invention relates to a measurement device and method, in particular to a high-precision and high-bandwidth power quality detection device and measurement method. Background technique [0002] Existing power measurement (measurement) devices and power quality analysis equipment have very different focus ranges due to different measurement purposes. For example, the existing metering devices are metering methods based on conventional transformers. Depending on the application, the accuracy of the measurement taken is different. For example, industrial equipment and civilian electricity meters are generally 2.0; incoming line metering in factory parks, factories and mines is 1.0-1.5; gateway trade electricity metering is 0.2-0.5. It's not that the metering device can't be very accurate, but because of factors such as cost, necessity considerations, and uncertainty in the system sensor, all of which have a great impact on the measurement accuracy. I...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/00
Inventor 李相俊任景龙惠东郭光朝贾学翠王立业张亮
Owner CHINA ELECTRIC POWER RES INST
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