A new and intelligent operation assessment system in simulation training of substation
Most nation-wide substation simulation systems only provide the function of generating dispatch operation sheet and the new personnel always fail to cope well with the operation for the vital network and the complex dispatch task due to their lacking of practice and shortage of intensive memorization. It's necessary to enhance the training intensity while the new function should be implemented for optimizing in order to promote the training effectiveness. For above problems, the envisage design for the assessment system in this paper is presented based on self-invented substation simulation system of generating dispatch operation sheet.
Personal computer based expert system for power system operation education
A PC-based expert system of educating power system normal operations has been developed. The system is designed to be used as one of the teaching aids in the power system control centre. The main programs included in the package consist of operation sequence synthesis and switching simulation. The knowledge-based method and dynamic verification technique are employed to build the above two programs. An interactive graphical user interface is designed to help the user to use the software package. The system proves to be useful for educational purposes.
An expert system for switch operation planning on line dispatching
An expert system is presented that produces the operation sequence for disconnecting apparatus from a power system under normal operating conditions. 
 
 
 
To maintain the reliability of power supply on the network during the operation, the operation sequence must be produced in due consideration of network states, such as load factors and routes of transmission line. Besides, since the network which the system manages includes many high-voltage consumers, the operation sequence for each consumer should be divided into detailed switch operation sequence. 
 
 
 
To produce a detailed switching operation sequence simultaneously with macronetwork operation sequence, we introduce the multilayered object-oriented network model for the knowledge base of this expert system. 
 
 
 
Each layer of this model represents network configuration in the different degree of detail, and the consistency between states of layers is maintained by an interlayer message-passing mechanism. On the layer which represents apparatus and their connections in detail, the inference engine can generate the switching operation sequence. On another layer which represents control centers and consumers, the inference engine can search for routes of power supply and can generate the sequence of changing over the network. Therefore, by using each layer properly, the inference engine can produce various kinds of operation sequences. 
 
 
 
Furthermore the object-oriented network model facilitates maintenance and extension of the system.