110kV Duzhuang Intelligent Substation Design

With the rapid growth of national economy,electricity has become one of the main resources in social development.Because electrical energy is difficult to store,its production,transmission and consumption are done at the same time.The production and consumption of electrical energy need to keep balance and meet the quality.As an important part of electric power system,substation controls the power flow and transforms the voltage grade,it directly affect the operation of the whole power system security and economy.And it is also the intermediate links of the power plants and users.Du Zhuang substation is designed and implemented in the form of "conventional equipment + intelligent components + integrated intelligent system".According to the relevant resources,Du Zhuang transformer substation electrical part and configuration is analyzed and configured.The primary system connection mode is designed after choosing electric wire type and load calculation.Lightning protection calculation and station load is also designed.Second,according to state grid corporation of intelligent substation construction regulations,Du Zhuang substation secondary system and configuration is analyzed.The intelligent substation system relay protection,network structure,scheduling communication,automatic monitoring system,integration of ac/dc power supply,intelligent auxiliary system and other various functions are analyzed and specified,which provides reference for the conventional substation upgrading to intelligent substation.