Digital Electric Hydraulic Control System(DEH) is the digital electro-hydraulic regulating system of the steam turbine. It is the heart and brain of the steam turbine unit. Its function is to control the startup of the steam turbine, speed rise, load regulation and ensure the safe operation of the steam turbine unit. Compared with the old steam turbine oil regulating system, DEH mainly realizes computerization and electronization. Therefore, it is a revolutionary change in the control mode of steam turbine. At present, DEH control system is almost adopted for steam turbine power.
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