CAJ | 학술논문

为了研究电缆局部放电模式识别中Weibull分布的应用，将10 kV，30 m长的XLPE（crosslinked polyethylene）电缆作为研究对象，设计四种典型的人工缺陷模型，分析其产生的放电脉冲信号，采用极大似然法估计信号的 Weibull 分布。结果表明，Weibull概率分布跟局放幅值分布密切相关。因此可以根据其形状参数β值识别不同的放电类型。
위료연구전람국부방전모식식별중Weibull분포적응용，장10 kV，30 m장적XLPE（crosslinked polyethylene）전람작위연구대상，설계사충전형적인공결함모형，분석기산생적방전맥충신호，채용겁대사연법고계신호적 Weibull 분포。결과표명，Weibull개솔분포근국방폭치분포밀절상관。인차가이근거기형상삼수β치식별불동적방전류형。
To study the application of Weibull distribution in the mode of partial cable charging,taking a 30 m long 10 kV XLPE (cross-linked polyethylene)cable as the test object,this paper designs four typical artificial defect models,analyzes the discharging pulse signal generated by them,and adopts the maximum likelihood method to estimate the Weibull distribution of the signal.The results show that,Weibull probability distribution is closely related to partial discharging amplitude distribution,and different discharging types can be recognized according to its shape parameter β.