Principle Analysis Of The Protection Devices For The Pumped Storage Power Station And The Development Of The Calculation Software

With the rapid development of economy,the increase of installed capacity of the generator in power systems.Power system security and stability play a crucial role to the development of national economy,so the relay protection setting calculation of the pumped storage power station is particularly important.In this paper,according to the practical working experience in the pumped storage power plant,combined with the practice of NR,Siemens,AREVA pumped storage power plant protection devices,the author analyzes some special problems of the pumped storage plant unit protection,and designs protection locking logic and trip logic according to the characteristics of the pumped storage plant unit under various working conditions and protection.This help pumped storage plant unit protection device using less signal of the unit control system.This paper also focus of the work is for protection setting calculation of the template to develop and frame structure of setting software design.The author combined with multiple protection setting calculation before experience,formed a general protection setting calculation template,this template covers the common some protection configuration.The author in this template will each concrete to form the protection configuration,convenient operation through the software realization of the template after calculation.At the same time the author has completed the setting calculation software framework design,in the next work simply by programming the corresponding operation associate can complete the task of the whole software.