SYNCHRONIZATION METHOD FOR WIDE AREA SYSTEM PROTECTION APPARATUS, APPARATUS, STATION AND TOPOLOGICAL ARCHITECTURE

摘要

A synchronization method for a wide area system protection apparatus, an apparatus, a station and a topological architecture. The method comprises: a first station (2) transmitting a first data frame to second stations (1, 4, 5), the first data frame at least comprising the serial number p of the first data frame and the transmission timestamp T_st[p] of the first data frame (S1010); receiving a second data frame sent by the second stations (1, 4, 5), and recording the reception timestamp T_sr[q] of the second data frame, the second data frame comprising the serial number q of the second data frame and the transmission timestamp T_mt[q] of the second data frame as well as the reception timestamp T_mr[p] of the first data frame, and the first data frame being adjacent to the second data frame on the second stations (1, 4, 5) (S1020); calculating the time phase difference Δs and crystal oscillator frequency deviation Δf_p between the first station (2) and the second stations (1, 4, 5) (S1030); and adjusting the time of the first station (2) according to the phase difference Δs, and adjusting the clock frequency of the first station (2) according to the crystal oscillator frequency deviation Δf_p (S1040).