Sensing control system for measuring winding deformation by optical fiber
A winding deformation and sensor control technology, applied in general control systems, control/regulation systems, program control, etc., can solve the problem that winding deformation cannot be remotely monitored in real time.
Pending Publication Date: 2020-09-11
STATE GRID HEBEI ELECTRIC POWER RES INST +1
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Problems solved by technology
[0006] The purpose of the present invention is to provide a sensing control system for measuring winding deformation by optical fiber, so as to solve the problem that the existing winding deformation cannot be monitored remotely and in real time
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Embodiment Construction
[0018] Such as figure 1 , 2 As shown, a specific embodiment of a sensor control system for measuring winding deformation by optical fiber, including an M-Z interferometer 1 for receiving signals coupled together by reflected waves of different wavelengths, and multiple optical fibers are connected in series on the optical fiber for measuring winding deformation The grating strain sensor, therefore, what the M-Z interferometer 1 receives is a signal coupled together by multiple reflected waves of different wavelengths.
[0019] The M-Z interferometer 1 includes an input coupler 101 and an output coupler 102, a measurement arm 103 and a reference arm 104 are connected in parallel between the input coupler 101 and the output coupler 102, and the measurement arm 103 and the reference arm 104 are optical Two arms with different lengths are used for phase interference of light to obtain interference light. The M-Z interferometer 1 is sequentially connected with a wave splitter 2, ...
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The invention discloses a sensing control system for measuring winding deformation byan optical fiber. The system comprises an M-Z interferometer, a wave separator, a photoelectric detector, a signalprocessing unit, a controller, a wireless transmitting module, and a display which comprises a wireless receiving module. Monitored reflected waves with different wavelengths are coupled together andtransmitted to theM-Z interferometer; the M-Z interferometer is used for splitting light into two beams to pass through two arms with different optical paths to complete interference, so as to obtaininterference light; the wave separator divides the light after interference into different lights according to wavelengths and transmits the different lights to the photoelectric detector, and the photoelectric detector converts a reflected light signal into an electric signal; the signal processing unit carries out algorithm processing on the electric signals to obtain the optical wavelength, then the pressure value of each sensor is obtained and transmitted to the controller, the controller processes the signals and sends the processed result to the wireless receiving module of the displayerthrough the wireless transmitting module, and remote monitoring of winding deformation is achieved.
Description
technical field [0001] The invention relates to the field of winding deformation monitoring, in particular to a sensor control system for measuring winding deformation by optical fiber. Background technique [0002] Due to the design, manufacture, material quality and operation of large-scale power transformers, vicious accidents and failures of equipment occur from time to time, seriously affecting the safe and stable operation of the power grid (about dozens of large-scale power transformer accidents occur in the country every year). [0003] The power transformer is an important equipment in the power generation, transmission and distribution system. Its performance and quality are directly related to the reliability and operational efficiency of the power system operation. The winding is an important part of the transformer. [0004] After the transformer winding carries current, an axial and radial leakage magnetic field will be established in the space where it is loca...
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Login to View More IPC IPC(8): G01B11/16G05B19/042
CPCG01B11/161G01B11/165G05B19/0423
Inventor 高树国刘云鹏孙路孟令明范晓舟田源李欢
Owner STATE GRID HEBEI ELECTRIC POWER RES INST