With the rapid development of regional economy, the reliability problem of Bayannaoer electricity system has become worse and worse. In this paper a comprehensive analysis of the capacity of supply and the reliability of the system under the current system structure and operation mode was given. The typical cases of system failure were discussed and existing problems in the current system were addressed. To solve these problems, three reliability projects were suggested and analyzed. These include the eastern outskirts of Linhe to Prague transmission line project, Pioneer 220 kv substation project and Dongshengmiao 220 kv transmission project. With the implementation of these projects the Bayannaoer grid will be largely enhanced. |