Research On Stability Of Hazhong Power Grid Operation Based On PSASP

The instability of the power grid has been a serious problem for power supply management agencies.The large-scale blackout caused by this problem will have a large negative effect on people’s convenience in life and social and economic development.my country is moving towards a new era of ultra-UHV and large power grids,coupled with the maturity of FACTS applications,making my country’s power system more complicated and refined.The development process of electrification is accelerating with people’s needs,and the social electricity load is also rising.As power supply quality and reliability are facing more stringent requirements,how to ensure the safe and stable operation of the power grid has become an important social issue.The development of western my country has been accelerating in recent years,and the demand for electricity in society has been rising.However,some areas still have strong dependence on external power transmission and are far away from the load center.Due to the influence of geographical factors and environmental factors,the construction of power grid models is greatly restricted.This article will take Hanzhong area as an example,and analyze its stability based on its real operating mode.Especially in-depth analysis of the existing problems in the Hanzhong power grid system,determine the cause of the problem and put forward corresponding suggestions for improvement,hoping to benefit the stable operation of the power grid in the western region.In this study,we conducted the following research:1.Combined with the actual situation of Hanzhong Power Grid,the power grid simulation model based on PSASP software is built,and the parameters are set.Static n-1 test and power flow calculation are carried out for Hanzhong Power Grid.2-The voltage stability of the four power supply areas is determined by the regional load margin discrimination method.3.The static voltage stability is comprehensively analyzed by modal analysis method,and the participation factors of each bus are calculated.4.The voltage stability of Hanzhong Power Grid is defined by more detailed data,and the main weak points of Hanzhong Power Grid are clarified.5.Combined with the actual situation,the relevant improvement measures are put forward to ensure the stability of regional power supply in Hanzhong area.