Electric transmission line corona current audible noise evaluation method based on importance measurement index
A transmission line, corona current technology, applied in the direction of instrumentation, random CAD, data processing applications, etc., can solve the problems of numerical calculation of inaudible noise, heavy workload of audible noise, etc.
Pending Publication Date: 2022-05-10
WUHAN NARI LIABILITY OF STATE GRID ELECTRIC POWER RES INST +2
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Problems solved by technology
Since the audible noise of the transmission line will change with the load, wind speed, humidity, pollution and other factors, the general electric field numerical calculation method cannot effectively calculate the audible noise in the environmental evaluation, and directly measure the audible noise under the transmission line. Huge workload of audible noise at all points
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[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0029] see figure 1 , in an embodiment of the present invention: provide a transmission line corona current audible noise evaluation method based on an importance measure index, comprising the following steps:
[0030] Step 1: Case data collection, including: collecting transmission line engineering data for environments and areas that may affect the audible noise of the corona current of the transmission line;
[0031] The second step: identification of ris...
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The invention discloses a power transmission line corona current audible noise evaluation method based on an importance measurement index, and the method comprises the steps: building a power transmission line corona current audible noise evaluation importance measurement index system, and determining a general evaluation standard of a basic random variable importance measurement index; selecting a specific power transmission line, and calculating a basic random variable importance measurement index according to the basic random variable importance measurement index system and a general evaluation standard; according to the basic random variable importance measurement index, the influence degree of the basic random variable X on the electric transmission line corona current audible noise is evaluated, whether the basic random variable importance measurement index meets the consistency requirement or not is judged, if yes, the next step is executed, and if not, the next step is executed; otherwise, recalculating the basic random variable importance measurement index of the specific power transmission line; correcting the basic random variable importance measurement index according to the basic random variable influence factor; and evaluating the real-time audible noise of the specific power transmission line according to the corrected basic random variable importance measurement index.
Description
technical field [0001] The invention relates to the technical field of power grid environmental protection, in particular to an evaluation method for audible noise of transmission line corona current based on an importance measurement index. Background technique [0002] Due to the vigorous development of UHV transmission projects, the impact of the electromagnetic environment generated by its transmission lines on the surrounding ecological environment has aroused widespread concern. As more and more transmission lines pass through densely populated areas, people pay more and more attention to the electromagnetic environment. There have been many studies on the electromagnetic environment of transmission lines at home and abroad. Since the audible noise of the transmission line will change with the load, wind speed, humidity, pollution and other factors, the general electric field numerical calculation method cannot effectively calculate the audible noise in the environment...
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Login to View More IPC IPC(8): G06Q10/06G06Q50/06G06F30/20G06F111/08G06F119/10
CPCG06Q10/06393G06Q50/06G06F30/20G06F2111/08G06F2119/10
Inventor 邓慰冯满秦志敏李伟李晓光张广洲秦澔澔程鹏刘寅石倩柯睿王建
Owner WUHAN NARI LIABILITY OF STATE GRID ELECTRIC POWER RES INST