Browsing Active Adaptive Control Laboratory (AACL) by Author "Annaswamy, Anuradha"
Now showing items 1-12 of 12
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Adaptive Output-Feedback Control for A Class of Multi-Input-Multi-Output Plants with Applications to Very Flexible Aircraft
Qu, Zheng; Annaswamy, Anuradha; Lavretsky, Eugene (2015-10-07)A dominant presence of parametric model uncertainties necessitates an adaptive approach for control of very flexible aircraft (VFA). This paper proposes an adaptive controller that includes a baseline design based on ... -
Analysis of Slow Convergence Regions in Adaptive Systems
Nouwens, Oscar; Annaswamy, Anuradha; Lavretsky, Eugene (2015-10-07)We examine convergence properties of errors in a class of adaptive systems that corresponds to adaptive control of linear time-invariant plants with state variables accessible. We demonstrate the existence of a sticking ... -
Co-Design of Arbitrated Network Control Systems with Overrun Strategies
Soudbakhsh, Damoon; Phan, Linh; Annaswamy, Anuradha; Sokolsky, Oleg (2015-06-28)This paper addresses co-design of platform and control of multiple control applications in a network control system. Limited and shared resources among control and noncontrol applications introduce delays in transmitted ... -
Delay-Aware Control Designs of Wide-Area Power Networks: Proofs of the Results
Dibaji, Seyed Mehran; Yildiz, Yildiray; Annaswamy, Anuradha; Chakrabortty, Aranya; Soudbakhsh, Damoon (2017-04-07)The purpose of this document is to provide proofs of the results in Dibaji et al. (2017). -
A Delay-Aware Cyber-Physical Architecture for Wide-Area Control of Power Systems
Soudbakhsh, Damoon; Chakrabortty, Aranya; Alvarez, Francisco; Annaswamy, Anuradha (2015-06-28)In this paper we address the problem of widearea control of power systems in presence of different classes of network delays. We pose the control objective as an LQR minimization of the electro-mechanical states of the ... -
Foundations of Infrastructure CPS
Annaswamy, Anuradha; Hussain, Alefiya; Chakrabortty, Aranya; Cvetkovic, Milos (2015-10-07)Infrastructures have been around as long as urban centers, supporting a society’s needs for its planning, operation, and safety. As we move deeper into the 21st century, these infrastructures are becoming smart – they ... -
Frequency Control using Cooperative Demand Response through Accumulated Energy
Cvetkovic, Milos; Annaswamy, Anuradha (2015-10-07)This paper proposes a hierarchical control architecture for engaging demand into providing primary frequency response services. The proposed architecture relies on the use of information about accumulated energy for the ... -
A Model-based Dynamic Toll Pricing Strategy for Controlling Highway Traffic
Phan, Thao; Annaswamy, Anuradha; Yanakiev, Diana; Tseng, Eric (2015-10-07)A model-based approach to dynamic toll pricing has been developed to provide a systematic method for determining optimal freeway pricing schemes. A novel approach is suggested for alleviating congestion, which utilizes ... -
A Practical Integration of Automatic Generation Control and Demand Response
Shiltz, Dylan; Annaswamy, Anuradha (2015-10-16)For a power grid to operate properly, electrical frequency must be continuously maintained close to its nominal value. Increasing penetration of distributed generation, such as solar and wind generation, introduces ... -
Squaring-Up Method for Relative Degree Two Plants
Qu, Zheng; Annaswamy, Anuradha; Lavretsky, Eugene (2015-09-28)Abstract--- Non-square multi-input-multi-output (MIMO) plants are becoming increasingly common, as the addition of multiple sensors is becoming prevalent. However, square systems are needed sometimes as an leverage when ... -
Supplementary Materials to "Adaptive Output-Feedback Control for A Class of Multi-Input-Multi-Output Plants with Applications to Very Flexible Aircraft"
Qu, Zheng; Annaswamy, Anuradha; Lavretsky, Eugene (2016-03-22)A dominant presence of parametric model uncertainties motivates an adaptive approach for control of very flexible aircraft (VFA). This paper proposes an adaptive controller that includes a baseline design based on observers ... -
Utilization-Aware Adaptive Back-Pressure Traffic Signal Control
Chang, Wanli; Chakraborty, Samarjit; Annaswamy, Anuradha (2015-10-07)Back-pressure control of traffic signal, which computes the control phase to apply based on the real-time queue lengths, has been proposed recently. Features of it include (i) provably maximum stability, (ii) low ...