| With the fast development of the local power grid and the access of new energysystem such as high pressure equipment,high-capacity machine unit and large windfarm, power grid scale expands increasingly, particularly in the transition period forthe local power grid and the security and stability is becoming complex. Theproblem of the stability form of power grid changed from the focus on heat stabilityinto various dimensions including a transient stability, dynamic stability and thermalstability, which poses great challenge for the local power grid safety and the stableoperation. For solving the mentioned problems, the paper chooses Baotou as the studyobject, and selected research level in the summer rack, rack in winter and summerarea power grid planning network frame for the study of network frame and usingprofessional software modeling and simulation of regional power grid. By doing this,the study analyzes Baotou area grid three kinds of space truss structure-the trends ofthe static analysis, static state security analysis, short-circuit current calculation,reactive voltage, transient stability analysis. The study will find out the possibleweaknesses in Baotou power grid, and proposed the corresponding solution measures.The situation is about electricity load growth in Baotou area, plant constructionstructure to make the transition to500kv voltage class as the background andprovides the technical support for regional power grid to ensure safe, stable andeconomic operation, ensure the power supply reliability. The research conclusion forthe study will provide some suggestions and guidance for power grid operation anddispatcher control in Baotou which will effectively improve the system security andstability level. |