A Load Modeling to Utilize Power System Analysis Software

전력계통해석용 프로그램에 적용하기 위한 부하모델링

  • 지평식 (충주대학교 전기공학과)
  • Published : 1999.11.01

Abstract

Load model is very important to improve accuracy of stability analysis and load flow study in power systems. A power system bus is composed by various loads, and loads have different power consumption due to voltage/frequency changing. Thus the effect of voltage/frequency changing must he considered to load mxleling. In this research, ANN was used to construct component load moddel for more accurate load mxleling. Typical residential load was selected, and characteristics exrerimented on voltage/frequency changing. Acquired data used to construct the component ANN model, and aggregation method of component load model was presented based on component load model and composition rate. Furthennore, it's transfomlation method to the mathematical load model to he used at the traditional power system analysis soft wares was also presented.sented.

전력계통에서 부하모델은 안정도 해석과 조류계산의 정도를 높이기 위하여 매우 중요하다. 전력계통의 모선은 전압/주파수 변화에 따라 소비형태가 다른 다양한 부하들로 구성되어 있다. 따라서 전압/주파수 변화에 따른 부하모델을 고려하지 않으면 안된다. 본 연구는 정도 높은 부하모델링을 위해 신경회로망을 사용하였다. 대표적인 주거용 부하를 선정하여 전압과 주파수를 변화시키면서 부하특성을 측정하였다. 실험에서 얻은 실적자료로 신경회로망을 이용한 개별부하모델을 구축하고, 개별부하모델과 부하구성비에 의한 집단부하 모델을 제시하였다. 또, 전력계통해석 프로그램에 적용하기 위한 수학적 모델로의 변환기법을 제시하였다.

Keywords

References

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