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CDMA network-based remote controllable electric energy quality on-line monitoring device

A CDMA network and power quality technology, applied in the direction of measuring devices, measuring electrical variables, measuring electricity, etc., can solve the problem of insufficient accuracy and real-time performance of online monitoring of power quality, inability to realize remote data exchange and sharing, limited digital communication capabilities, etc. problem, to achieve the effect of overcoming difficult convergence, good superiority, improving accuracy and real-time performance

Inactive Publication Date: 2015-12-23
BORUI ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the online power quality monitoring devices on the market mainly have the following deficiencies: the accuracy and real-time performance of online power quality monitoring are insufficient; the digital communication capability is limited, and remote data exchange and sharing cannot be realized.

Method used

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  • CDMA network-based remote controllable electric energy quality on-line monitoring device
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  • CDMA network-based remote controllable electric energy quality on-line monitoring device

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

[0032] Such as figure 1 As shown, a remote controllable power quality online monitoring device based on a CDMA network includes a power grid 1, a data acquisition sub-module 2, an ARM control sub-module 3, a CDMA communication sub-module 4, and a power quality management platform 5, wherein the The data acquisition sub-module 2 includes a voltage and current transformer 6 and a signal conditioning module 7, and the ARM control sub-module 3 adopts an ARM processor STM32F103 control chip. The voltage / current signals on the primary side of the power grid are respectively converted into secondary signals by the data acquisition sub-module 2, and converted into signals recognizable by the ARM control sub-module 3 through signal conditioning, and the ARM control sub-module 3 controls the data acquisition sub-module 2, The load packs and organizes the coll...

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Abstract

A CDMA network-based remote controllable electric energy quality on-line monitoring device disclosed by the present invention comprises a power grid 1, a data acquisition submodule 2, an ARM control submodule 3, a CDMA communication submodule 4 and an electric energy quality management platform 5. The ARM control submodule 3 transmits the acquired power grid data to the electric energy quality management platform 5 real-timely, and the electric energy quality management platform 5 mainly detects the indexes, such as the harmonics and inter-harmonics, the voltage fluctuation and flicker, the amplitude-frequency deviation, the transient disturbance, etc. The CDMA network-based remote controllable electric energy quality on-line monitoring device of the present invention can monitor and analyze the electric energy quality status real-timely and comprehensively, especially can be used for the simple harmonic wave and flicker monitoring, and enables the accuracy, the real-time performance and the frequency resolution to be improved.

Description

technical field [0001] The invention relates to the technical field of on-line monitoring of power quality, in particular to a remote controllable on-line power quality monitoring device based on a CDMA network. Background technique [0002] With the development and promotion of smart grid technology, user-side distributed power generation (such as wind power generation, photovoltaic power generation, biomass power generation, etc.) Large-scale applications have a great impact on the reliability of grid power supply and the power quality of power distribution systems. The intermittent and random nature of distributed power will cause voltage fluctuations and flicker in the distribution network, resulting in the voltage quality of some nodes exceeding the standard; inappropriate inverter control strategies in distributed power will produce unbalanced voltage and harmonic pollution , have adverse effects on the user-side electrical equipment; distributed power grid-connected ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00G08C17/02
Inventor 朱文堂朱新国季亮
Owner BORUI ELECTRIC
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