Abstract

The electrical load has significant impact on the operation of power system. In the past decades, the component based method and the measurement based method were developed to build the load models. However, with the features of the randomness, variation and high order non-linearity, it is difficult to test the accuracy of the built load models. A load modeling method verification strategy is proposed in this paper. The component based load modeling method is performed based on the investigation of the electrical load composition to aggregated the parameters of the load model, while, the measurement based load modeling method uses dynamic measurement to estimate the parameters of the load model. They build the load model via different ways. In this condition, if the parameters obtained by different methods are similar, the effectiveness of the load modeling methods can be verified. These two load modeling methods are carried out in China North West power grid. The results demonstrate that the parameters of the load model obtained by different methods are close with each other. Hence, the component based method and the measurement based method are both effective in the modeling for the real electrical load.

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