A new approach to customize secondary device models in a Dispatcher Training Simulator (DTS)

Modern power systems are becoming increasingly complex in operation and control due to more and more new techniques and new devices introduced into the systems. To ensure secure and economic operation of the power systems, especially in the environment of deregulation, a Dispatcher Training Simulator (DTS) needs to be developed. To simulate secondary devices (including relays and automatic facilities) realistically in the DTS, it is important to develop a user-friendly tool to customize the secondary device models. This paper presents a new approach to customize the simulation of secondary devices in a dispatcher training simulator. A kind of script language is designed to define the device models, which are interpreted by an inner driver program. Meanwhile, the introduction of component models, which describe the common parts of different secondary devices, facilitates users' work. This paper also provides some solutions to the problem of the data management and to the problem of simulation speed. As the result, users can define secondary devices flexibly and control the process of power flow calculation and fault calculation by themselves. The new approach proposed here has been applied to several practical Chinese DTS systems.