Discussion on Application of TCS-900 Control System in Steam Turbine Generator Unit
The original control system of steam turbine generator unit has a long service life,and the failure rate of the cards increase year by year,during the static experiment when adjusting the valve,there is a significant deviation between the valve command and feedback,and there is burrs in the valve control curve.The system is replaced by TCS-900 control system,which adopts the independent research and development of triple modular redundancy(TMR)and hardware fault tolerance(HIFT)safety control technology,and the principle and testing process of the digital electro-hydraulic control system(DEH)of the new control system are introduced,the stability of DEH,emergency trip system(ETS)are improved.Application shows high precision requirements of unit control are met,the system hardware structure is safe and reliable,software operation mode is reasonable,hardware diagnosis maintenance is convenient.
turbo-generator setdigital electro-hydraulic control systememergency trip system
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