220V synchronous phasor measurement device on user side

A synchronized phasor measurement and user-side technology, which is applied to measuring devices, measuring electrical variables, and the phase angle between voltage and current, etc., can solve problems such as expensive installation and maintenance costs, large-scale, high-density distribution restrictions, etc. , to achieve the effect of real-time and efficient collection and transmission

Inactive Publication Date: 2014-01-15
TAIYUAN UNIV OF TECH
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  • Abstract
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Problems solved by technology

At present, the wide-area measurement of the power system mainly relies on the PMU (Phasor Measurement Unit). Due to its high cost and installation and maintenance costs, the installation point of the PMU is limited to the power system power plant or substation. Its large-scale, high-density distribution is limited

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  • 220V synchronous phasor measurement device on user side
  • 220V synchronous phasor measurement device on user side
  • 220V synchronous phasor measurement device on user side

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Embodiment Construction

[0036] The present invention will be described in further detail below with specific embodiments in conjunction with the accompanying drawings. After reading this specific embodiment, those skilled in the art can realize the technical solutions described in the present invention, and can also embody the advantages described in the present invention. with positive effects.

[0037] Such as figure 1 As shown, a kind of 220V user-side synchronized phasor measurement device provided by the present invention includes a master CPU unit and a slave CPU unit, both of which realize seamless connection through the serial peripheral interface SPI; the master CPU unit communicates with the 220V AC grid connection, and use FFT transformation to obtain phasor information in the AC grid, the main CPU unit is also connected to the data storage unit and display unit, and controls the working status of the data storage unit and display unit through the keyboard; the slave CPU unit receives the ...

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Abstract

The invention provides a 220V synchronous phasor measurement device on a user side. The device comprises a driving CPU and a driven CPU which are in seamless connection through a serial peripheral interface; the driving CPU is connected with a 220V alternating-current power grid through a signal acquiring and processing unit and obtains phasor information in the alternating-current power grid through FFT, and the driving CPU is further connected with a data storage unit and a display unit and controls the working state of the data storage unit and the working state of the display unit through a keyboard; the driven CPU receives the phasor information of the driving CPU and is connected with a synchronous clock unit so as to obtain accurate time information, and the driven CPU is connected with a communication unit so that the time-scale-carrying phasor information can be transmitted to a server terminal. The measurement device is low in cost, simple in structure, convenient to install and prone to achieve wide area measuring of the power grid compared with a traditional phasor measurement unit.

Description

technical field [0001] The invention relates to the technical field of power system wide-area phasor measurement, and more precisely relates to a high-performance 220V user-side synchronized phasor measurement device. Background technique [0002] In recent years, with the widespread application of automation technology and communication technology in the power system, the interconnection of the national large power grid has become an obvious trend, so that the scale of the power grid has gradually increased, and more and more distributed new energy sources have been connected to the grid. It is necessary to implement wide-area measurement and centralized analysis of grid phasors. At present, the wide-area measurement of the power system mainly relies on the PMU (Phasor Measurement Unit). Due to its high cost and installation and maintenance costs, the installation point of the PMU is limited to the power system power plant or substation. Its large-scale, high-density distr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R25/00
Inventor 赵庆生陈群伟何志方郭贺宏韩肖清熊洁
Owner TAIYUAN UNIV OF TECH
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