This paper presents a new transformation by which the stability-equation method can be applied for analysis and design of sampled-data systems. New stability criteria applicable to systems with transfer function having both real and complex coeficients are presented. Several kinds of examples are co
Analysis of sampled-data control systems by the stability-equation method
โ Scribed by L.C. Wang; K.W. Han
- Publisher
- Elsevier Science
- Year
- 1978
- Tongue
- English
- Weight
- 865 KB
- Volume
- 306
- Category
- Article
- ISSN
- 0016-0032
No coin nor oath required. For personal study only.
โฆ Synopsis
This paper presents a new method to convert a characteristic equation from the z-domain to the w-domain, which is best suitable for the stability-equation method. Stability criteria applicable to sampled-data control systems with characteristic equations having both real and complex coefj?cients are presented. Illustrative examples are given, and a high order proportional navigation system is considered.
๐ SIMILAR VOLUMES
Random sampling in digital control systems has characteristically been avoided by development of precise timing and computational cycles even though examples are known in which the randomness aids system stability. Generally, attempts to determine the effects of relaxing these rigid timing requireme
7'his work is a generalization of Tsypkin's stability criterion for a class of time-varying nonlinear sampled-data feedback systems. Some sufficient conditions for the response to any bounded input sequence to be bounded are preserded. No assumptions are made concerning the internal dynamics of the
An analysis of control systems containing nonlinear elements and elements operating on discrete as well as continuous signals is described. When amplitude sensitive elements are involved in sampled-data systems, and provided certain restrictions are adhered to, it is shown that describing function t
Methods are presented for designing noninteracting controllers for linear multivariable sampled data systems. The two particular cases considered are as follows: (1) The feedback signal is sampled, but continuous controllers are used. (2) Digital controllers are utilized. The methods are based upon
A systematic procedure is proposed for the design of multivariable feedback control systems. For an N x N multivariable control system, the desirable overall compensator is decomposed into N cascaded sub-compensators to be determined in each step. The stabilityequation method is used to find the des