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Series compensation device energy supply online monitoring device and method

A series compensation and monitoring device technology, applied in circuit devices, electrical components and other directions, can solve the problems of low effective utilization rate and long operation and maintenance time of series compensation device, and achieve the effect of improving effective utilization rate and shortening maintenance time.

Pending Publication Date: 2021-02-19
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the shortcomings of low effective utilization rate and long operation and maintenance time of the series compensation device in the above-mentioned prior art, the present invention provides an online monitoring device for energy supply of the series compensation device, including a laser energy delivery device, a platform measurement device and a control and protection device; The output end of the laser energy delivery device is connected to the input end of the platform measurement device, the output end of the platform measurement device is connected to the input end of the control protection system, and the output end of the control protection system is connected to the primary equipment of the series compensation device;

Method used

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  • Series compensation device energy supply online monitoring device and method
  • Series compensation device energy supply online monitoring device and method

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Effect test

Embodiment 1

[0066] Embodiment 1 of the present invention provides an online monitoring device for energy supply of a series compensation device, such as figure 1 As shown in , it includes laser energy delivery device, platform measurement device and control and protection device connected in sequence;

[0067] The laser energy delivery device is used to generate laser light;

[0068] The platform measurement device is used to obtain the frequency signal based on the laser, and output the data frame based on the frequency signal;

[0069] The control protection device records waves of the primary equipment of the series compensation device based on the data frame, and protects the primary equipment when the series compensation device or the power system fails.

[0070] The laser energy delivery device includes laser pumping. The laser pumping in the laser energy delivery device and the photovoltaic power converter in the platform measuring device are expensive, and the board manufacturin...

Embodiment 2

[0098]In the online monitoring device for energy supply of the series compensation device provided by Embodiment 2 of the present invention, the platform measurement device collects the measured analog quantity on the high-voltage capacitor platform, and transmits the data to the ground control and protection device through optical fiber according to the standard serial communication protocol. The power supply of the platform measurement device is composed of an energy-taking device and a laser energy-transmitting device. When the series compensation device is in the exit state, the laser pump of the laser energy delivery device sends laser light to the photovoltaic power converter of the platform power module separated from the platform measurement device. The photovoltaic power converter converts the laser light into DC, and the platform power module converts the laser channel The generated direct current is transmitted to the analog-to-digital conversion module. When the se...

Embodiment 3

[0110] Embodiment 3 of the present invention provides an online monitoring method for energy supply of a series compensation device, the specific flow chart is as follows Figure 5 As shown, the specific process is as follows:

[0111] S101: the laser energy delivery device generates laser light;

[0112] S102: The platform measurement device obtains a frequency signal based on the laser, and outputs a data frame based on the frequency signal;

[0113] S103: The control protection device records waves of the primary equipment of the series compensation device based on the data frame, and protects the primary equipment when the series compensation device or the power system fails.

[0114] Before the platform measurement device obtains the frequency signal based on the laser, and outputs the data frame based on the frequency signal, it includes:

[0115] The energy harvesting device obtains the alternating current output by the primary equipment of the series compensation dev...

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Abstract

The invention provides a series compensation device energy supply on-line monitoring device and method. The device comprises a laser energy sending device, a platform measuring device and a control protection device. The output end of the laser energy sending device is connected with the input end of the platform measuring device, the output end of the platform measuring device is connected with the input end of the control protection system, and the output end of the control protection system is connected with the series compensation device primary equipment. According to the invention, transient wave recording during switching between the energy taking device and the laser energy transmitting device is realized through the wave recording module, effective information is provided for energy supply fault analysis of the series compensation device, and an effective criterion is provided for operation life judgment of the laser energy transmitting device and the photovoltaic power converter; the effective utilization rate of the series compensation device is improved, and the operation and maintenance time of the series compensation device is shortened.

Description

technical field [0001] The invention relates to the technical field of power systems, in particular to an online monitoring device and method for energy supply of a series compensation device. Background technique [0002] The main component of the measurement system of the series compensation device is the platform measurement box, whose function is to collect multiple analog quantities on the high-voltage capacitor platform, convert the analog quantities into digital quantities, and transmit them to the ground control center under the high-voltage platform through the optical channel. The measurement system of the series compensation device generally includes multiple platform measurement boxes, all of which are installed on a high-voltage platform insulated from the ground. The platform measurement box has two power supply methods. The first is the laser energy delivery method: the laser is sent from the laser energy delivery device on the ground to the high-voltage platf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J13/00
CPCH02J13/00019
Inventor 祁宝才李永滨马顺绪答科超马汝括施志刚邓国龙田生祥李斌张梁刘冬平吕良辉祁军年祁凡张启晟郭财穆婷
Owner STATE GRID CORP OF CHINA