电路相关Prediction method and subjective evaluation of audible noise based on results at the Shiobara HVDC test line.pdfVIP

1170 IEEE Transactions on Power Delivery, Vol. PWRD-2, No. 4, October 1987 PREDICTION METHOL) AND SUBJECTIVE EVALUATION OF AUDIBLE NuISE BASED ON RESULTS AT HE SHiOBARA HVDC TEST LINE I M. Fukushima K. Tanabe, Member Y. Nakano Central Research Institute of Electric Power Industry Tokyo, Japan Abstract - Audible noise (AN) was measured on a variety of One advantage of this method is that since data in conductor bundles at the Shiobara HVDC test line. A new which AN levels are equal are compared, the influence of method of AN prediction is proposed based on the test ambient noise is the same, and data reliability is the same. results. The method is applicable not only to bipolar but also The AN level increase rate for GMAX is not defined by n and monopolar lines. The calculated results obtained by this d, but the prediction method can represent this characteristic method can explain the effects of pole spacing and number of well. subconductors on AN levels. This report describes the results of AN measurement at The result of a subjective evaluation test on AN from the Shiobara test line and the prediction method based on the DC lines is also reported. results. It also covers the results of subjective tests of the