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Multifunctional wind power quality monitor

A quality monitor and multi-functional technology, which is applied in the field of multi-functional wind power quality monitors, can solve problems such as single function, and achieve the effects of simplified measurement and control, simple operation, and convenient measurement and control

Inactive Publication Date: 2012-06-27
SOUTH CHINA UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the single-function limitation of the existing wind power quality monitoring system and provide a multifunctional wind power quality monitor

Method used

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  • Multifunctional wind power quality monitor

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Embodiment Construction

[0020] The implementation of the present invention will be further described below in conjunction with the drawings and embodiments, but the implementation of the present invention is not limited thereto.

[0021] Such as figure 1 As shown, a multifunctional wind power quality monitor includes a voltage sensor, a current sensor, a signal conditioner, an A / D converter, a DSP processor and an MCU module. The voltage and high current are converted into low voltage and small current analog signals, and after the signal conditioner filters and biases the analog signal, the A / D converter collects the analog signal and converts it into a digital signal, and then the DSP The processor reads the digital signal into the memory, and then the DSP processor calls the FFT algorithm for calculation and processing, and finally transmits the processed data to the MCU module through the SCI interface for real-time display.

[0022] The monitor also includes a zero-crossing comparison optocoupl...

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Abstract

The invention relates to the wind power quality field and provides a multifunctional wind power quality monitor. The monitor comprises a voltage sensor and a current sensor for converting the to-be-monitored high voltage and high current in a wind power generation system into a low voltage and a low current analog signal respectively; a signal conditioner for subjecting the analog signal to filtering and biasing processing; an analog to digital (A / D) converter for converting the processed signal into a digital signal; a digital signal processor (DSP) for reading the digital signal converted by the A / D converter, processing the digital signal by use of fast Fourier transform (FFT) algorithm, and transmitting the processed data to a micro control unit (MCU) module through a serial communication interface (SCI); and the MCU module for real-time displaying the received data according to ARM application program, wherein the A / D converter is externally connected with a phase lock frequency multiplication module and a zero crossing comparison optical coupling isolating module. The invention can simultaneously monitor multiple power quality parameters and real-time display power quality parameters.

Description

technical field [0001] The invention relates to the field of wind power quality, in particular to a multifunctional wind power quality monitor. Background technique [0002] As the main form of wind energy utilization, wind power generation has been highly valued by countries all over the world. With the continuous increase of installed wind power capacity in the world, the impact of wind power generation on the power grid and the impact of power harmonics cannot be ignored, and the voltage, frequency fluctuations and power harmonics caused by unstable wind speed will have a negative impact on equipment connected to the power grid. In severe cases, it will threaten the safe and stable operation of the power grid. Therefore, it is very necessary to develop a wind power quality monitoring and management system for long-term and continuous monitoring and management of power quality for a comprehensive grasp and improvement of power quality. At present, the current domestic wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R19/25G01R13/02
Inventor 陈渊睿敖华张祥罗王亚兰许厚鹏
Owner SOUTH CHINA UNIV OF TECH
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