A Synchronous DC Energy Metering System Based on Beidou/GPS Clock

A GPS clock and clock synchronization technology, which is applied in time division multiplexing systems, measuring electrical variables, measuring devices, etc., can solve the adverse effects of DC charging stations without an energy metering system, and DC metering instruments monitoring DC pile metering information collection. and other problems, to achieve the effect of online detection function and measurement accuracy

Active Publication Date: 2022-04-12
STATE GRID JIANGXI ELECTRIC POWER CO LTD RES INST +1
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  • Application Information

AI Technical Summary

Problems solved by technology

At present, only ordinary DC energy meters are installed on the DC charging piles, and the DC charging stations do not yet have an electric energy metering system, which has a very negative impact on the monitoring of DC measuring instruments and the collection of DC pile metering information.

Method used

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  • A Synchronous DC Energy Metering System Based on Beidou/GPS Clock

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Embodiment Construction

[0015] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The specific embodiments described here are only used to explain the technical solution of the present invention, and are not limited to the present invention.

[0016] The present invention provides a technical solution: a synchronous DC electric energy metering system based on Beidou / GPS clock, the system structure is as follows figure 1 As shown, it mainly includes clock synchronous DC concentrator based on Beidou / GPS module, clock synchronous DC energy meter and DC shunt or DC transformer based on Beidou / GPS module.

[0017] The system takes the clock synchronous DC concentrator as the core and multiple clock synchronous DC energy meters as the underlying structure to form a synchronous DC energy metering system to realize the energy metering...

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Abstract

The invention provides a synchronous DC energy metering system based on the Beidou / GPS clock, which mainly includes a clock synchronous DC concentrator based on the Beidou / GPS module, a clock synchronous DC energy meter based on the Beidou / GPS module, and a DC shunt or DC mutual inductance The system uses a clock synchronous DC concentrator as the core, and a plurality of clock synchronous DC energy meters as the underlying structure to form a synchronous DC energy metering system to realize energy metering in the DC distribution network area or DC charging station. The invention realizes the precise clock synchronous DC electric energy metering function, solves the problem that conventional metering devices cannot measure synchronously, provides a device basis for demand response electric energy metering, and also realizes the online detection function of the metering accuracy of user electric energy meters.

Description

technical field [0001] The invention relates to the technical field of electric energy metering, in particular to an electric energy metering system of a DC power grid of a power system and a DC charging station, and mainly proposes a synchronous direct current electric energy metering system based on a Beidou / GPS module clock. Background technique [0002] With the vigorous promotion and application of electric vehicles, the construction of DC fast charging stations has entered a rapid stage. DC energy metering is the core link to ensure fair and just charging transactions for electric vehicle users. At present, only ordinary DC electric energy meters are installed on the DC charging piles, and the DC charging stations do not yet have an electric energy metering system, which has a very negative impact on the monitoring of DC measuring instruments and the collection of DC pile metering information. At the same time, with the construction of the DC power distribution network...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R22/06H04J3/06
CPCG01R22/063H04J3/0644
Inventor 裴茂林刘明杨爱超范亚军邓礼敏熊志凌余波熊茹
Owner STATE GRID JIANGXI ELECTRIC POWER CO LTD RES INST
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