Title :
On the improvement of SOE tester time precision
Author :
He Qing ; Zhang Zhi ; Yang Kun
Author_Institution :
Nat. Eng. Lab. for Biomass Power Generation Equip., North China Electr. Power Univ., Beijing, China
Abstract :
In this paper the usual problems of Sequence of Events (SOE) and SOE testers are analyzed, the key factors affecting SOE tester´s time precision are studied and the methods to improve time precision of SOE tester are proposed. A portable SOE tester based on a discrete model is presented accordingly. The SOE meter is composed of host and slave computers with the CPU of C8051F121. Communications between host and slave computers are achieved by RS-485 technology. Experiments show that time precision of the tester is high enough to meet the demands of all kinds of SOE. The SOE tester is essential equipment for the safe operation of the power plant.
Keywords :
power engineering computing; power system measurement; RS-485 technology; SOE tester time precision; host computers; sequence of events; slave computers; Computers; Crystals; Hardware; Microcontrollers; Power generation; Power systems; Software; SOE; Tester; Time Precision;
Conference_Titel :
Control Conference (CCC), 2010 29th Chinese
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-6263-6
