Distribution automation, as the name suggests, is a comprehensive management system for the power system that combines distribution technology with computer data integration and transmission technology. Due to its advantages of excellent service, low operating costs, and reduced labor intensity, it has shown good development momentum in domestic distribution projects in recent years. Consequently, some issues in the implementation of distribution automation have also been exposed. This article briefly analyzes the issues that should be noted in distribution automation engineering.
Currently, in domestic distribution automation projects, the most widely used systems are SCADA and GIS. The integration of these two systems plays a crucial role in distribution automation engineering. Both systems have their own independent databases and grid analysis algorithms. The integration of these two systems requires data consistency and integrity; ensuring the uniqueness of data maintenance; SCADA system provides real-time distribution operation data to GIS, and ensures the real-time display of distribution network operation data in the GIS system. Only in this way can the integration of SCADA and GIS systems be successful.
After solving system issues, it is also necessary to handle the control problems of fault clearing, isolation, and power restoration. Eliminating faults and quickly restoring power has always been the essential work of power personnel. However, when clearing faults, the primary goal should be to minimize the scope and duration of power outages, achieve local handling of local faults, and minimize economic losses caused by outages.
It is also necessary to achieve an organic combination of centralized control and distributed intelligent control. Centralized control means that after a fault occurs, the site collects information, analyzes the network to determine the fault location, handles the fault, and then issues commands to restore power. To improve fault clearing efficiency, it is necessary to realize peer-to-peer network communication between terminals, enabling efficient communication and coordination, understanding the dynamic information of adjacent switches to quickly identify the fault location, and making decisions to open or close switches, then clearing the fault to achieve the established goals of small outage scope and short outage duration.
The distribution automation process not only requires advanced technical equipment and efficient integrated systems, but also requires meticulous and conscientious work from staff, achieving an organic combination of people and equipment. Only then can we achieve twice the result with half the effort, reaching the established goals of small outage scope, short duration, and minimal economic losses after faults occur.
