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University Affiliation Assignment

   

Added on  2021-06-17

12 Pages1530 Words71 Views
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UNIVERSITY AFFILIATIONDEPARTMENT OR FACULTYStudent nameStudent registration numberProfessor (tutor)Date of submissionDESIGN ASSIGNMENTOVERVIEW
University Affiliation Assignment_1

In the time domain, there is an input-output relationship that can be expressed as a closedloop or open loop system. The system is referred to as linear time invariant when the parametersthat constitute the system are time invariant. For computation purposes, the LTI is transformedinto the s-domain or Laplace domain. The block diagram representation below enables one togain an understanding of the signal flows in the system, modelling of complex systems fromsimple building blocks, and to allow for the generation of the system transfer function. The plantsystem, G(s), is under control. Proportional control can be recommended for fast-responsesystems with a large transmission coefficient. To adjust the proportional controller, you shouldfirst set the maximum proportion constant where in the yield power declines to zero. When thecalculated value is stabilized, set a quantified value and gradually diminish the proportioncoefficient and the control error will decrease. If there are periodic fluctuations in the structure,the proportion gain constant should be augmented so that control error is negligible, the periodicalternations decrease to the edge. PI control provides zero control error and is insensitive tointerference of the measurement channel. The PI control disadvantage is slow reaction todisturbances. To adjust the PI controller, you should first set the integration time equal to zero,and the maximum proportion time.Then by decreasing the coefficient of proportionality, achieveperiodic oscillations in the system. Close to the optimum value of the coefficient ofproportionality is twice higher than that at which any hesitation, and close to the optimum valueof the integration time constant - is 20% less than the oscillation period. The higher theintegration coefficient, the slower the accumulated integration constant value. The higher thedifferentiation factor, the greater the response of the system to the disturbance. The PIDcontroller is used in inertial systems with relatively low noise level of the measuring channel.1
University Affiliation Assignment_2

The benefit of PID is the speed of the rise time of a signal, the accurate setpoint temperaturecontrol and the fast reaction to disturbances.DESIGN STEPSThe gain crossover frequency, ωc=ω1(±10%)The steady-state error at minimal point, unit ramp referenceThe phase margin should be at least 600The effect of measurement noise on the output, 1/100 at noise frequencies ω>ω2(i)To analyze the gain crossover frequencyωgcωpc=gaincrossoverphasecrossoverThe transfer function here is given as, G(s)=10s+20s(s2+8s+40)2
University Affiliation Assignment_3

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University Affiliation Assignment_4

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