Lumped/distributed multi-parameter detecting device suitable for smart grid

A detection device, smart grid technology, applied in the direction of circuit devices, electrical components, etc., can solve problems such as non-architecture solutions, and achieve the effect of improving random errors

Active Publication Date: 2019-07-12
SOUTHEAST UNIV
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, when monitoring many aggregated / distributed parameters of the smart grid, only a single parameter can be detected through relatively independent and dispersed optical / electrical sensing devices. There is no unified architecture solution, especially a system based on optical / electrical physical A Unified Architecture Solution for Coupling and Transformation

Method used

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  • Lumped/distributed multi-parameter detecting device suitable for smart grid
  • Lumped/distributed multi-parameter detecting device suitable for smart grid
  • Lumped/distributed multi-parameter detecting device suitable for smart grid

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Embodiment Construction

[0030] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0031] The technical solution of the invention includes: a sensing unit with consistent structure, a configurable sensing information demodulation module, and a flexible sensing information feeding network.

[0032] 1. Structurally consistent sensing unit. Sensing parameters are detected by means of materials sensitive to sensing parameters such as current, electromagnetic field, and temperature.

[0033] 1) Composition. The sensing unit is composed of a wavelength selection device, an optical birefringence device, a sensing parameter sensitization device, and a light reflector. For lumped parameter detection, m sensing units are connected in parallel, m is an integer greater than or equal to 2; for distributed parameter detection, n sensing units are connected in series, and n is an integer greater than or equal to 2.

[0034] 2) Function.

[...

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Abstract

The invention discloses a lumped / distributed multi-parameter detecting device suitable for a smart grid. The device comprises a sensing information demodulating module, a sensing information feeding network, a lumped parameter sensing unit, and a distributed parameter sensing unit. The sensing information demodulating module comprises a tunable laser, a polarization controller, a photodetector, amicrowave power splitter, a signal processing unit and a laser diode driver. The sensing information feeding network comprises a loop unit, an optical beam splitter, an optical switch and a polarizer.According to the invention, an optical sensor with uniform structure is designed on a high-voltage side, the sensing parameter detection is carried out by sensitive materials of current, electromagnetic field and temperature, detection information is sent to the high-voltage side by bus type and the tree-type optical fiber networks, and sensing information is demodulated in a constructed double-ring photoelectric oscillation circuit. According to the device, the applicability of a monitoring scene and the demodulation mode of a sensing quantity are improved, and therefore, a fused monitoringsensor network is formed to achieve the early warning of a power grid.

Description

technical field [0001] The invention relates to the technical field of smart grids, in particular to a lumped / distributed multi-parameter detection device suitable for smart grids. Background technique [0002] In 2009, the State Grid Corporation of China officially launched the construction of the smart grid. Through the extensive application of distributed intelligence, broadband communication and the integration of automatic control systems, the smart grid ensures real-time market transactions and seamless connection and real-time interactive. The smart grid is related to the country's economic lifeline and energy security. It breaks through the traditional grid concept and requires the cross-integration of new energy, information, power electronics and other advanced technologies. The technology is complex and the integration is difficult. [0003] The basis of the smart grid is the real-time measurement feedback and dynamic adjustment of the state quantity of the power...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J13/00
CPCH02J13/0006
Inventor 陈翰李长青闵靖
Owner SOUTHEAST UNIV
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