Analysis And Design Of Network Transmission Of Electrical Network Monitoring And Control System In Large Scale Factory

The need of reducing costs, increasing production capacity, saving energy, environmental protection in the modern chemical industry, electric energy is becoming very important in enterprise demand. And its power grid structure is becoming more complex. The large scale factory should establish one electrical net monitoring control system for safe, orderly and efficient use and management of electric energy. However, due to the many types of electrical equipment, demand difference and technical differences, there are many difficulties. The main problem is difficult to build an efficient, stable and economic network transmission system. So using the computer and network technology, and intelligent monitoring equipment, analysis of previous engineering case, analysis the demand of the grid monitoring control system, put forward to form a network plan, construction of power grid monitoring control system, improve the level of enterprise grid monitoring, it makes sense to research topic.Based on the analysis of the power network monitoring control system of large scale factory case, according to the characteristics of electrical system of enterprises, technical scheme of electric control system of the previous reference, using the local area network technology, prove Electrical Network Monitoring and Control System (ENMCS)’s demand on the network, the network topology, network protocol, network equipment, network mediain detail. Study and analyze fully, and abide by the norms of the industry, this dissertation proposes the use of the three layer exchange technology to set up ENMCS network, ENMCS network can solve the large, high security requirements, reliability requirement higher characteristic, has the advantages of advanced technology, equipment, investment saving. Dissertation also studies the IED device to access the network interface, and gives the specific method of access.Research shows, the power grid monitoring control network transmission system is proposed in this dissertation based on, can the science of large-scale chemical enterprise ENMCS network set up guidance, improve system reliability, scalability, efficiency, so that enterprises can better to carry out scientific management, saving energy and reducing consumption of electrical energy objective, enhances the enterprise the economic, social benefits.