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Generator power angle measurement method based on rfid

A measurement method and generator technology, applied in the direction of motor generator testing, measuring devices, measuring electrical variables, etc., can solve problems such as unstable power angle measurement and affecting power system stability criteria, so as to improve accuracy and reliability reliability, convenient engineering debugging and maintenance, reliable and accurate original data and the effect of data support

Active Publication Date: 2018-06-29
NARI TECH CO LTD +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially when measuring the power angle of multi-pole logarithmic generators, the unstable power angle measurement caused by the loss of key phase pulse is an important factor affecting the stability criterion of the power system

Method used

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  • Generator power angle measurement method based on rfid
  • Generator power angle measurement method based on rfid
  • Generator power angle measurement method based on rfid

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Experimental program
Comparison scheme
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Embodiment

[0029] Such as image 3 In the shown embodiment, the number of generator pole pairs is 4, and then there are 4 key-phase pulse acquisition modules, and the unique addressing of the RFID electronic tags on each key-phase pulse acquisition module can be set arbitrarily, such as according to image 3 The sequential addressing mode of "C00, C01, C02, C03" shown.

[0030] When the verification condition of the initial phase angle of the generator power angle is satisfied, the self-learning of the RFID address is performed, that is, steps 1-1 and 1-2 are performed. When the 4 RFID address information data obtained through step 1-1 are different, the self-learning is successful, otherwise it fails.

[0031] Step 1 also includes steps 1-3: if the RFID address data collection is still incorrect until the initial phase angle verification of the generator is completed, output an initial phase angle verification failure warning message. This step can facilitate the staff to know the inf...

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PUM

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Abstract

The invention discloses a generator power angle measurement method based on RFID, comprising steps of setting an RFID passive electronic label on an inter-phase pulse collection module, performing only addressing on the electrode of the generator, performing learning on the RFID address information when the generator performs initial phase angle verification, collecting the RFID address information of various electrodes which corresponds to various key phase pulses during the set grid connection after the verification of the initial phase angle, calculating the corresponding the generator power angle, comparing the collected RFID address information with the self-learning result to find the effective generator power angle data and obtaining the final generator power angle result through the average calculation. The invention solves the inaccuracy of the generator power angle measurement because of the loss of the inter-phase pulse and improves the accuracy and reliability of the generator power angle measurement.

Description

technical field [0001] The invention relates to the technical field of generator power angle measurement in power system automatic control, in particular to an RFID-based generator power angle measurement method. Background technique [0002] As one of the important state variables reflecting power system stability, generator power angle is an important original record data of power grid disturbance and low frequency oscillation. Generator power angle refers to the angle between the internal potential of the generator and the terminal voltage of the generator. The usual measurement and calculation methods include direct measurement and parameter calculation. Refer to the accompanying drawings in the manual figure 2 , the basic principle of the direct measurement method is to monitor the spatial position of the generator rotor and the terminal voltage to directly measure the power angle of the generator. When the generator is unloaded, the terminal voltage and the internal ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/34G01R25/00
CPCG01R25/00G01R31/34
Inventor 檀永沈健杨志宏周斌张敏侯明国
Owner NARI TECH CO LTD