Hybrid control system simulation.
Holloway, Lowell J.
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Hybrid control systems are becoming increasingly important today due primarily to the development of the high speed digital computer. This work involves the hybrid simulation of a relatively simple second order analog system using a short word length digital computer for the computation of the control law for the analog system. Particular attention is paid to the effects of the analog-digital interface on the analog system response. A method is developed whereby the digital computer can be programmed to minimize these interface effects. The simulation was carried out in the Digital Control Laboratory at the U. S. Naval Postgraduate School using the CDC 160 digital computer and the Pace TR-20 analog computer with associated equipment. Although the specific solution of the interface problem is directed towards the above equipment, the general method of attack on the interface problem is applicable to many similar type hybrid systems.
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