An approach for eliminating accumulative error of SOE module in DCS

Huadian Technology ›› 2012, Vol. 34 ›› Issue (1): 28-29.

• 研究与开发 • Previous Articles Next Articles

An approach for eliminating accumulative error of SOE module in DCS

WU Shenghua, TIAN Haibo

Research Institute of Guodian Nanjing Automation Corporation Limited, Nanjing 210003, China

Received:1900-01-01 Revised:1900-01-01 Online:2012-01-25 Published:2012-01-25

Abstract

Abstract: Due to the influence of the temperature, the excitation level and other instability factors on the frequency of the clock oscillator, it is difficult to avoid the error of the system clock. Because of the complexity of the program, this influence is continuous and random; and it is difficult to eliminate this influence in short time. A realistic corrective method for the accumulative error of analog clock of SOE module in DCS was put forward and analyzed in detail. The method can reduce the accumulative error and enhance the accuracy significantly.

Key words: distributed control system (DCS), sequence of event (SOE) record, accumulative error, accuracy

WU Shenghua;TIAN Haibo. An approach for eliminating accumulative error of SOE module in DCS[J]. Huadian Technology, 2012, 34(1): 28-29.

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An approach for eliminating accumulative error of SOE module in DCS

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