Beidou GPS-based time synchronization system verification device

A system verification and GPS positioning technology, which is applied in the field of Beidou GPS-based time synchronization system verification devices, can solve the problems of low success rate of substation time synchronization system, etc.

Inactive Publication Date: 2021-09-14
HUZHOU ELECTRIC POWER SUPPLY CO OF STATE GRID ZHEJIANG ELECTRIC POWER CO LTD
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0005] The present invention aims to overcome the problem of low success rate of substation time synchronization system fault elimination caused by the lack of synchronous clock source equipment in the prior art, and provides a time synchronization system verification device based on Beidou GPS, with a timing success rate of 100%. Excellent timing performance, meeting the substation timing performance requirements

Method used

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Embodiment

[0030] This embodiment provides a time synchronization system verification device based on Beidou GPS, such as figure 1 It includes interconnected Beidou positioning and timing module 1, B code receiving, sending and photoelectric conversion module 2, liquid crystal display module 3 and liquid crystal display module 4.

[0031] Such as figure 2As shown, the Beidou GPS positioning and timing module 1 includes a resistor R1, a positioning and timing chip U1, a light-emitting diode LED, a resistor R2, a resistor R3, a resistor R4, a diode D1, a boost chip U2, a capacitor C2, a capacitor C3, a capacitor C4, and a capacitor C5 , battery BAT and socket P1, power supply VCC3.3V are respectively connected to one end of resistor R1, the positive pole of diode D1, one end of capacitor C3, one end of capacitor C3, the VCC end of positioning timing chip U1 and the output end of step-down chip U2, and the other end of resistor R1 is connected to Connect the positive pole of the light-emi...

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Abstract

The invention discloses a Beidou GPS-based time synchronization system verification device, which overcomes the problem of low fault elimination success rate of a transformer substation time synchronization system caused by no synchronous clock source equipment in the prior art, and comprises a Beidou GPS positioning time service module, a B code receiving, transmitting and photoelectric conversion module, a liquid crystal display module and a lithium battery charging and boosting power supply module. The four modules are connected with one another, and an input and output interface is arranged outside the device and comprises optical IRIG-B code input, optical IRIG-B code output, electric IRIG-B code input, electric IRIG-B code output, PPS code input, PPS code output and NTP output. The device comprises an alarm, a satellite locking and a synchronization state. The time service success rate reaches 100%, the time service performance is excellent, and the time service performance requirement of the transformer substation can be met; qualified time synchronization signals in four formats can be sent, and the time synchronization output signal requirements of a transformer substation in various time synchronization modes can be met. The defect elimination success rate is high.

Description

technical field [0001] The invention relates to the technical field of power grids, in particular to a time synchronization system verification device based on Beidou GPS. Background technique [0002] The power grid system is a time-related system. For the systematic analysis of power grid operation and accidents, circuit breakers, protection device actions, and time sequences of various events are required. A substation timing system that provides time sequences is essential. At present, there are 135 substations under the jurisdiction of State Grid Huzhou Power Supply Company, including 22 220kV substations, 91 110kV substations, and 22 35kV substations. Each substation is equipped with a substation timing system. [0003] The substation time synchronization system is very important. It performs time synchronization for equipment such as fault recorders, relay protection devices, measurement and control devices, and background monitoring systems, so that they can operate ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G04R20/04G04R20/06
CPCG04R20/04G04R20/06
Inventor 童大中周开运王玥钱卓蕾鲁水林朱开成卢毅
Owner HUZHOU ELECTRIC POWER SUPPLY CO OF STATE GRID ZHEJIANG ELECTRIC POWER CO LTD
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