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Whole-course us-level-precision wireless ethernet synchronization apparatus of intelligent transformer station and method thereof

A smart substation and network synchronization technology, applied in the direction of circuit devices, electrical components, time-division multiplexing systems, etc., can solve the problems that different equipment cannot be synchronized

Active Publication Date: 2016-03-30
STATE GRID FUJIAN ELECTRIC POWER CO LTD +3
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Problems solved by technology

Synchronization between different devices is simply not possible without specific measures

Method used

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  • Whole-course us-level-precision wireless ethernet synchronization apparatus of intelligent transformer station and method thereof
  • Whole-course us-level-precision wireless ethernet synchronization apparatus of intelligent transformer station and method thereof

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0030] Such as figure 1 as well as figure 2 As shown, this embodiment provides a wireless Ethernet synchronization device with us-level precision throughout the smart substation, specifically including chip DP83640, FPGA and constant temperature crystal oscillator; the chip DP83640 includes a network communication module, a first clock input module, and a second Trigger module and first data communication module; Described FPGA comprises second clock input module, second data communication module, clock output module and pulse detection module; Described network communication module is connected to wireless network bridge, in order to send and receive network Data; the whole second trigger module is connected with the pulse detection module to detect the pulse interval of the chip DP83640; the first data communication module is connected with the seco...

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Abstract

The invention relates to a whole-course us-level-precision wireless ethernet synchronization apparatus of an intelligent transformer station and method thereof. The apparatus comprises a chip DP83640, an FPGA, and a constant-temperature crystal oscillator. Therefore, clock synchronization of different devices in a wireless Ethernet network without the IEEE1588 capability can be realized; and the apparatus and the method can be applied to development of various distributed electrical capacity quantity simulation and detection devices in a power system widely.

Description

technical field [0001] The invention relates to the field of time synchronization between different devices of a wireless Ethernet network without IEEE1588 capability in an intelligent substation, in particular to a wireless Ethernet synchronization device and method with us-level precision throughout the intelligent substation. Background technique [0002] The merging units and smart terminals of the smart substation are distributed on-site, and high-precision clock signals are required in the simulation test process to synchronize control signals and capture data. And each device has its own physical clock (crystal oscillator). Due to the different drift rates of the physical clocks of different devices, even if the deviation between the clock of the related device and the absolute time is adjusted to zero at a certain moment, it will also change with the passage of time. Instead, a new deviation is generated, and the deviation is divergent. [0003] In order to realize ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J3/06
CPCH02J13/00H04J3/0641H04J3/0661H04J3/0697
Inventor 唐志军林国新林国栋邓超平翟博龙石吉银冯学敏郭健生汤汉松周东顶
Owner STATE GRID FUJIAN ELECTRIC POWER CO LTD
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