Power distribution system fault wave-recording method and device, and storage medium
A system fault and wave recording device technology, applied in the field of power system, can solve problems such as inaccurate results, affecting the efficiency of fault analysis, unreasonable length of recorded waveform, etc., to achieve the effect of improving accuracy, improving efficiency, and reducing burden
Inactive Publication Date: 2019-11-12
深圳华工能源技术有限公司
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Problems solved by technology
The fault recorder only records various electrical quantity data in a short period of time when the threshold exceeds the limit, which leads to inaccurate results when performing fault analysis and affects the normal transportation of the power system. At the same time, the length of the waveform recorded by the fault recorder is not Reasonable, not only increases the burden of data transmission, but also affects the efficiency of fault analysis
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[0024] Below in conjunction with specific embodiment and accompanying drawing, the present invention is further elaborated and illustrated:
[0025] A fault recording method for a power distribution system, the method comprising:
[0026] Use the set frequency and the first recording length to record the waveform;
[0027] If the physical quantity of the waveform exceeds the set threshold, the fault waveform is recorded using the set second recording length, and the second recording length is greater than the first recording length;
[0028] If the transient value of the physical quantity of the waveform exceeds the set threshold, all waveforms after exceeding the threshold are recorded as fault waveforms.
[0029] When the waveform is normal, the waveform is recorded with the set frequency and the first recording length; when the physical quantity of the waveform exceeds the set threshold, the fault waveform is recorded with the second set recording length, and the second re...
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The invention discloses a Power distribution system fault wave-recording method and device, and a storage medium. The method comprises the following steps: performing waveform recording based on the first wave-recording length; if the recorded waveform exceeds a threshold, performing fault waveform recording by adopting the set second wave-recording length; and if a transient value exceeds the threshold, performing fault waveform recording on all waveforms thereafter. The device comprises a detection module for detecting the waveform; a timed wave-recording module for performing waveform recording based on the first wave-recording length; a transfinite wave-recording module for performing fault waveform recording by adopting the second wave-recording length when the recorded waveform exceeds the threshold; and a mutation wave-recording module for performing fault waveform recording on all waveforms thereafter when the waveform transient value exceeds the threshold. The storage medium is used for storing a computer program, and the computer program is used for realizing the above method. Through the power distribution system fault wave-recording method and device, and the storage medium provided by the invention, the waveform can be accurately recorded, the wave-recording length can be reasonably distributed, the data transmission burden is reduced, and the fault analysis efficiency and accuracy are improved.
Description
technical field [0001] The present invention relates to the technical field of electric power systems, in particular to a fault recording method, device and storage medium for power distribution and utilization systems. Background technique [0002] The fault recorder is an important automatic device to improve the safe operation of the power system. When the power system fails or oscillates, it can record the fault and automatically record the changes of various electrical quantities during the entire fault process. Specifically, the fault recorder is used in the power system. When a fault occurs in the system, it can automatically and accurately record the changes of various electrical quantities in the process before and after the fault. Through the analysis and comparison of these electrical quantities, the analysis It plays an important role in handling accidents, judging whether the protection is operating correctly, and improving the safe operation level of the power ...
Claims
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Login to View More IPC IPC(8): G01R31/08
CPCG01R31/08
Inventor 周卓伟刘泽健吕宇桦郑群儒陈敬峰吴天文李阳姚尧翔
Owner 深圳华工能源技术有限公司