VQ Sensitivity Analysis Considering Power Exchange for Multi-Area Interconnection Power Networks

Abstract

In the market environment, large-scale interconnected power grid has become the direction of the development of the power. For large-scale interconnected power systems, although each region has its own independent operating unit, they are connected by tie-lines for power exchange. In this case, because of the exchange of power inclusively, the large-scale interconnected power grid needs a stable, reliable and efficient power flow model. This paper presents a new integrated power flow model including power exchange, comparing with traditional power flow model which ignore it, can effectively improve the speed and accuracy of the power flow calculation results of large interconnected power grids. In this paper, V-Q sensitivity method is used to analyze the stability of static system. The V-Q sensitivity of the traditional power flow model and the improved integrated power flow model are calculated respectively, and the results are compared. By intuitive data comparison, the validity of the improved integrated power flow model and the accuracy of the calculation are verified.