Turbine speed is monitored by a magnetic.
Digital electro hydraulic control system.
An electro hydraulic control system use electronic circuits is m.
These inputs can be defined as the machine interface and can consist of pressure transducers temperature sensors flow sensors velocity sensors or rpm sensors.
The control system is highly reliable and easy to operate easy to maintenance flexible with features and design focusing on the redundancy of key components self diagnostic on every.
The ehc system has both electronic and hydraulic parts.
The steam turbine digital electro hydraulic control system is the most important functional subsystem of the turbine power generator.
Eliminates the issues of hydraulic control and component obsolescence.
A digital electro hydraulic control system.
Re flexibility but the over all requirements are.
The operator controls and indications for the ehc system can be seen in figure 3 2 3.
Steam turbine digital electro hydraulic control system hollias deh categories high pressure combustion resistant oil electro hydraulic control system that uses combustion resistant oil as the working substance shortened as high pressure combustion resistant oil deh.
These inputs can be defined as the user interface and can consist of joysticks potentiometers operator panels or other input devices.
Electronic control in mobile equipment can consist of the following.
The turbine electro hydraulic governor ehg control system controls steam flow to the turbine thorough a series of servo driven electro hydraulic valves.
With a well executed hydraulic control system that can work at the speed of digital machines can perform tasks either with minimal interference from the driver or in some cases with no operator at all.
It utilized pure electric and high pressure fuel oil or low pressure turbine oil hydraulic servo system component forming the digital electro hydraulic control system deh.
It can receive on site signals like speed power and steam pressure as well as the instructions from the lcd screen sent by operators.
The advantages are robustness high efficiency energy efficiency as well as a dynamic and highly accurate regulation.
The main ehc system control logic shown in figure 3 2 1 positions the tcvs and bpvs to control the turbine inlet pressure as indicated in figure 3 2 2 and 3 2 6 and hence the reactor pressure.
An electro mechanical direct coupled actuator.
Digital electro hydraulic control system simply called deh system is mainly used as the steam turbine control system to adjust the speed load and exhaust pressure etc.
Self driving tractors bulldozers even material handlers will be coming soon to a job site near you.
The mitsubishi turbine ehg control system can be applied to a variety of turbine generator system designs.
