HollySys Turbine Control System Digital Electro-Hydraulic System (DEH) Emergency Trip System (ETS) Turbine Supervisory Instruments (TSI)

Steam Turbine Control System Brochure Since entering the field of DEH (Digital Electro-Hydraulic System) in the 1990s, HollySys has accumulated rich industry experience and engineering implementation experience through nearly 30 years of in-depth research on turbine control. Its overall professional and reliable solutions have been successfully applied to small, medium and large-scale plants for units ranging from 3 MW to 1,000 MW. By December 2023, sales of the DEH system had exceeded 6,500 sets. HollySys has also applied for more than 30 patents, and its solutions have gained wide industry...

Steam Turbine Control System Brochure Developed high-pressure fuel- Developed high-pressure fuel- Developed DEH with superior software and hardware, which was successfully put into supercritical units, which was supercritical units, which was operation in the Datang Luohe 630 MW successfully put into operation in successfully put into operation in DCS/DEH/MEH/ETS project Guohua Hulun Buir Power Plant Fujian Hongshan Power Plant Developed a fast master applied the redundant servo control system to meet the fast requirement of ultra-supercritical units

Steam Turbine Control System Brochure Applicable Model Technical Data EH Hydraulic Control System Primary Frequency Regulation Secondary Frequency Regulation Decoupling Function

Steam Turbine Control System Brochure Concentrated Solar Power Valve Management Combined Cycle Power Generation Simulation Function Isolated Grid Coordination Control in LVDT Rod Drop Detection High-Altitude Remote Areas 21 Smart Functions Service Guarantee APS Automatic Start-Stop System Typical References Remote Expert Diagnosis Intelligent Isolated Grid Coordination System 1,000 MW-Level Thermal Power Blast Furnace Gas Power Generation (Reheat Unit) Petrochemical Self-Supplied Power Station

Steam Turbine Control System Brochure System Overview As the three necessary systems for turbine control, DEH is mainly responsible for controlling the startup, speed increase, operating under load and load regulation of the turbine to ensure stable operation of a turbine unit. ETS is mainly responsible for automatically and quickly cutting off the steam intake of a turbine when a fault occurs to protect the unit. TSI can continuously, accurately and reliably monitor the important parameters of turbine startup, operation and shutdown through sensors. When the monitored parameters exceed the limit,...

Steam Turbine Control System Brochure Fast Frequency Regulation High-Performance Hydraulic Control With qualified primary frequency regulation capability, DEH can make the regulation period lower than 30 ms (non-control period). The hydraulic control system utilizes an independent highpressure 14 MPa control oil source, and the control of the oilactuated motor is integrated into the servo control system. This hydraulic control system is capable of achieving an oilactuated motor response time of less than 0.3s. Applicable Model Application of the Turbine Control System Ultra-Supercritical Steam...

Steam Turbine Control System Brochure DEH DEH (Digital Electric Hydraulic Control System) is a real-time comprehensive control system for steam turbine generator units. Its primary tasks include adjusting input power, valve positions, and pressure levels to meet external load demands according to customer specifications. T80 Series Universal Turbine Controller T80 series universal turbine controller is a special controller suitable for small turbine machinery, which is suitable for single-channel servo loop steam turbine generator units (T80), dual-channel servo loop steam turbine generator units...

Steam Turbine Control System Brochure K series DEH (T800K) is a general-purpose system designed based on HOLLiAS ® MACS-K. It adopts fast master control, dedicated alldigital intelligent servo module, speed measurement protection module, CAN bus fast communication, and is equipped with a full range of I/O redundant modules to meet the stability requirements of different working conditions. Reliability Full redundant multi-functional bus, realizing full redundant configuration of system power supply, field power supply and communication bus Flexibility Support for redundancy configuration of RTD,...

Steam Turbine Control System Brochure N series DEH (T800N) is a general-purpose system designed based on HOLLiAS-N nuclear power plant digital instrument and control system. It is specifically developed for megawatt nuclear power turbine units, complying with the special specifications of the nuclear power industry and meeting the automatic control requirements of nuclear power turbine generator units. It realizes the integrated management of DCS and turbine monitoring and control for nuclear power units. Rapidity Minimum opration period of 10 ms, which can meet the requirements of the turbine...

Steam Turbine Control System Brochure ETS ETS (Emergency Trip System) for turbines is designed to monitor certain parameters that significantly affect the safe operation of the unit. When these parameters exceed the safety operation limits, the system actuates the trip solenoid valve to control the turbine protection system, closing all steam inlet valves to the turbine, initiating an emergency shutdown. Additionally, it provides shutdown diagnostic information to systems such as SOE (Sequence of Events). The PLC-based ETS-LM is developed based on the HollySys LM-G3 series PLC platform, which...

Steam Turbine Control System Brochure The integrated ETS-K adopts HollySys HOLLiAS ® MACS-K system as the platform, and redundant fast main controllers to form the ETS system, which continuously receives alarms and shutdown signals from the TSI system, DEH system and other equipment of the turbine generator set online, and performs comprehensive logic judgment. The system is suitable for medium and large turbine units. When the normal operation of the unit is affected, various protection signals such as shutdown, alarm and interruption of the unit are sent in time to make the turbine shut down...