价值工程
價值工程
개치공정
VALUE ENGINEERING
2014年
36期
54-55
,共2页
架空线缆%感应雷击%Agrawal模型%仿真
架空線纜%感應雷擊%Agrawal模型%倣真
가공선람%감응뢰격%Agrawal모형%방진
overhead lines%indirect lightning strike%Agrawal model%simulation
本文从理论上分析了感应雷击在架空线缆上形成的过电压特性，采用传输线理论模型和Agrawal方程，推导出感应雷过电压波形的解析公式；分析了感应雷电压波形基本特征及电缆长度、波阻抗、大地电导率等参数对感应雷电压波形的影响。仿真结果验证了理论分析和解析公式的正确性，表明该方法不仅物理意义明确，而且便于编程实现，计算效率高。
本文從理論上分析瞭感應雷擊在架空線纜上形成的過電壓特性，採用傳輸線理論模型和Agrawal方程，推導齣感應雷過電壓波形的解析公式；分析瞭感應雷電壓波形基本特徵及電纜長度、波阻抗、大地電導率等參數對感應雷電壓波形的影響。倣真結果驗證瞭理論分析和解析公式的正確性，錶明該方法不僅物理意義明確，而且便于編程實現，計算效率高。
본문종이론상분석료감응뢰격재가공선람상형성적과전압특성，채용전수선이론모형화Agrawal방정，추도출감응뢰과전압파형적해석공식；분석료감응뇌전압파형기본특정급전람장도、파조항、대지전도솔등삼수대감응뇌전압파형적영향。방진결과험증료이론분석화해석공식적정학성，표명해방법불부물리의의명학，이차편우편정실현，계산효솔고。
This paper theoretically analyzes the induction lightning overvoltage characteristics on the overhead lines. Based on transmission line theory model and Agrawal equation, the analytic formula of induction lightning overvoltage waveform is deduced. The basic characteristic of induction lightning voltage waveform are analyzed, as well as the impact on the induction lightning voltage waveform such as cable length, wave impedance, earth conductivity parameters. The simulation results verify the correctness of theoretical analysis and show that the method is easy for programming and high computational efficiency.
