A lumped/distributed multi-parameter detection device suitable for smart grid

Abstract

The invention discloses a lumped / distributed multi-parameter detection device suitable for smart grids, including a sensing information demodulation module, a sensing information feeding network, a lumped parameter sensing unit and a distributed parameter sensing unit; the sensing information The demodulation module includes a tunable laser, a polarization controller, a photodetector, a microwave power splitter, a signal processing unit, and a laser diode driver, and the sensing information feeding network includes a circulator, an optical beam splitter, an optical switch, and a polarizer . The present invention designs and implements an optical sensor with a consistent structure on the high-voltage side, detects sensing parameters by means of birefringent sensitive materials such as current, electromagnetic field, and temperature, and feeds the detection information to the low-voltage side through a bus-type and tree-type optical fiber network , and demodulate the sensing information in the double-loop photoelectric oscillation circuit. The invention improves the applicability of the monitoring scene and the demodulation mode of the sensing quantity, thereby forming an integrated monitoring sensor network to realize early warning of the 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...

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

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