The energy management system of our company with the use of the computer network communication and control technology is the most advanced, hierarchical, distributed, decentralized structure; flexible application. Can be used to realize substation, opening and closing and large user electric energy acquisition, analysis and statistics function, reflect the enterprise network capacity and user status; and the data processing software and SCADA/EMS, MIS, supports the implementation of power plant bidding decision system interconnection, and realize the data exchange among different systems, support other extensions applications and advanced applications (such as power generation planning, appraisal charge and economic dispatch system, energy metering and billing system), to provide decision support for the commercial operation of power enterprises.
2 system structure
The system includes the following subsystems:
Real time data acquisition subsystem
Maintenance subsystem
The user management subsystem
Web publishing system
3 system features
C/S + thin client technology and distributed processing architecture, with the layered open and characteristics of high real-time;
Distributed database structure;
Advanced RAID disk fault tolerance and storage technology, storage technology and provide adequate technical support for storing large amounts of historical data;
Complete data acquisition, reasonableness check, data maintenance, statistical analysis and evaluation of service interface, and can be carried out two times the development according to the characteristics and needs of users;
Application system function module software can be flexible configuration, enhance the flexibility of the system;
The master station system to support remote maintenance station station far prescription;
All of the application software by using Java and C++ programming, database access using standard SQL language;
Can seamless docking with the third party data communication system, ensure the consistency of the data, to maximize the realization of data sharing;
Each application database can be distributed across multiple server or workstation;
The main / standby system work at the same time, to ensure the reliable operation of system;
With flexible network structure, provide good environment for open and distributed system.
The performance index of the 4 systems
The system capacity: gateway acquisition point is equal to or greater than 10000, the data capacity in principle only by hard disk capacity constraints;
The precision of the data and field meter data error: 0;
Switching time: ≤ 30s;
System clock error: ≤ 100ms;
Communication error rate is less than 10-4 can ensure normal communication system;
System of various types of equipment, the mean time to failure (MTBF): 20000 hours;
Availability: ≥ 99.9% (dual)
Operating system: the life is more than 15 years
5 system structure diagram
