Some studies in optimum and self-adaptive control systems

Doctoral thesis English OPEN
Murthy, Keshaviah Krishna
  • Subject: TJ

This thesis presents the results of a three year research project carried out by the author from October. 1964 to June. 1967 while a Commonwealth Scholar in this country.\ud \ud The contents of the thesis are divided into three parts. Part I describes the analytical and experimental studies on a second-order bang-bang servo under non-ideal operating conditions. The sensitivity and stability of the bang-bang system have been, investigated. This work was carried out during 1964-65 while a research scholar at the Queen's University of Belfast.\ud \ud Part II of the thesis is entitled "Self-optimisation using Pseudo-Random Binary Sequences". In this part, the performance of the original hill-climbing system which employs discontinuous parameter adjustment and of the modified system using continuous parameter adjustment is described. It is shown that the system with continuous parameter adjustment has a superior performance. A novel analogue running averager has been developed which is simple and inexpensive. \ud \ud Part III describes an investigation into the frequency response of a sample-and-hold element at certain sampling frequencies.
  • References (4)

    1.' "A Note on the Performance of the Second-order Maximum Effort Controller", X.K. Murthy. International Journal of Control, Vol.2, No.3. September, 1965.

    2.' "An Electro-Mechanical Running Averager", K.C. Ng and K.K. Murthy. Electronic Engineering. March, 1967.

    3. "Recent Advances in a Hill-climbing System", X.C. Ng, K.K. Murthy, D.H. Stockwell and K.R. Morris, Second I.E.E. Convention on Advances in Computer Control, Bristol, April, 1967.

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