Research On The DF8900Dispatching Automation System And Counter Measures Of Its Common Faults

With the rapid development of county power grid in recent years, the function and position of dispatching automation system turns to be more important which has became the guarantee for stable and fast development of grid security. The dispatching automation system can not only provide power system’s operating information, but also analysis decision-making tools and controls data processing system for operators at all levels of power system online. So we must treat the common faults of dispatching automation system seriously to make the dispatching automation system more secure, reliable and stable, even to be the pivotal role in electric power dispatch.Nowadays, the power company of Lujiang County dispatching automation system used DF8900system which was made by Yantai Dongfang electronics information industry company in2008.The system provides the guarantee for the safe and stable operation of Lujiang county power grid. However, this system still appeared some fault, such as remote communication error, reject control, historical data was not saved, the standby machine to switch failure, frequent telemetry limit alarm occasionally in the process of operation. In order to reduce losses, it need to be further analyzed, solved, extended and improved.In view of the application of dispatching automation system at the county level, I will put,the functions and organizational structure of the system forward. Give my attention to analysis most problems (by remote communication error, reject control, historical data is not saved, the standby machine to switch failure, frequent telemetry limit alarm, etc.) when DF8900dispatching automation system worked in the process. Then propose the corresponding solutions for them, and form a reference and basis to Lujiang County dispatching automation system troubleshooting guidebook.This paper solves all kinds of fault phenomena that appears in the operation of DF8900dispatching automation system, improves the anti-risk ability of the system, guarantees the accurate, real-time and reliable data and information provides by dispatching automation system for power grid scheduling.