Under closed loop operation, the controller automatically readjusts the operating status and rate of different climate control equipments (shade screen, roof vents, exhaust fan, cooling system and heating system) and simulates automatic control of GH-crop VPD within set limits irrespective of the variations in outside weather conditions.
For closed loop operation of such fast scanners, there is a need for high bandwidth, low noise sensing schemes.
Along with a microcontroller that runs the FDA, a MEMS gyroscope is implemented on the device for closed loop operation.
Subsequently, two sets of input/output data of high order controller in closed loop operation will be attained.
For the comparison of the dynamic behavior, responses to set point changes under closed loop operation with proportional-integral (PI) controllers were obtained.
For simple motion tasks, hybrid stepper motors can be used in closed loop operation as a cheaper replacement of expensive servo motors.
Finally, experimental results of closed loop operation are presented, demonstrating the good performance of the proposed control set up and thermal model.
The paper, also, introduces new Maximum Power Point Tracking MPPTT) for SRG by modifying the classical Hill Climb Searching (HCL) technique using ANN which is designed to emulate the PI controller for closed loop operation under different wind speeds.
It is also proposed that the proper operating temperature of the HI thermal decomposer to satisfy the hydrogen production rate of 50 NL-H2/h and sustain the closed loop operation of the SI process is 587 °C.
To sustain a closed loop operation of the SI process, the catalyst particles packed in the top of the H2SO4 thermal decomposer are protected from coming into contact with the inlet sulfuric acid aqueous solution, and the production molar ratio of oxygen discharged from the H2SO4 thermal decomposer to hydrogen discharged from the HI thermal decomposer always satisfies 0.5/1.
