CAJ | 학술논문

在基于ATP-EMTP软件的仿真计算中，通常用来模拟配电变压器的变比模型并不能很好地表征雷电过电压在配电变压器绕组中的正、反变换过程。针对这一问题，提出一种基于ATP-EMTP 软件的配电变压器集中参数雷击特性仿真等效模型。通过试验和计算求取模型中电容、电感、电阻参数，并采用算例仿真分析四点共地接线方式下配电变压器的正、反变换过电压，仿真结果合理。该模型建模较简单，适用于配电变压器建模，能够广泛应用于10 kV中压架空线路和设备的雷击特性计算，模拟雷电过电压在配电变压器绕组中的正、反变换过程，提高计算的准确性。
재기우ATP-EMTP연건적방진계산중，통상용래모의배전변압기적변비모형병불능흔호지표정뇌전과전압재배전변압기요조중적정、반변환과정。침대저일문제，제출일충기우ATP-EMTP 연건적배전변압기집중삼수뢰격특성방진등효모형。통과시험화계산구취모형중전용、전감、전조삼수，병채용산례방진분석사점공지접선방식하배전변압기적정、반변환과전압，방진결과합리。해모형건모교간단，괄용우배전변압기건모，능구엄범응용우10 kV중압가공선로화설비적뢰격특성계산，모의뇌전과전압재배전변압기요조중적정、반변환과정，제고계산적준학성。
In simulation calculation based on ATP-EMTP software,the ratio model for simulating power distribution trans-former can not well represent positive and reverse transformation process of lightning overvoltage in power distribution transformer winding. Aiming at the above problem,a kind of simulation equivalent model for centralized parameter light-ning characteristic of power distribution transformer based on ATP-EMTP software was proposed. By means of experiment and calculation,parameters of capacitance,inductance and resistance in the model were gotten. Example simulation was used to analyze positive and reverse transformation overvoltage of the power distribution transformer with four points grounding connection mode and the simulation result was proved to be reasonable. Modeling for this model was simple which was suitable for power distribution transformer. In addition,this model was able to be widely applied in calculating lightning characteristics of 1 0 kV medium voltage overhead lines and equipments,simulating positive and reverse transformation process of lightning overvoltage in power distribution transformer winding and improving calculation veracity.