Browsing USN Open Archive by Author "Di Ruscio, David Luigi"
Now showing items 1-14 of 14
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A Novel Process-Reaction Curve Method for Tuning PID Controllers
Dalen, Christer; Di Ruscio, David Luigi (Journal article; Peer reviewed, 2018)A novel process-reaction curve method for tuning PID controllers for (possible) higher order processes/models is presented. The proposed method is similar to the Ziegler-Nichols process reaction curve method, viz. only the ... -
A Semi-Heuristic Process-Reaction Curve PID Controller Tuning Method
Dalen, Christer; Di Ruscio, David Luigi (Journal article; Peer reviewed, 2018)A simple semi-heuristic method for designing PID controllers for time constant models are shown to be close to optimal. A Process-Reaction Curve method is proposed, composed by a method for approximating stable time constant ... -
Discrete LQ optimal control with integral action: A simple controller on incremental form for MIMO systems.
Di Ruscio, David Luigi (Journal article; Peer reviewed, 2012)A simple Linear Quadratic (LQ) optimal controller of velocity (incremental) form with approximately the same properties as a conventional PID controller of velocity form is presented, i.e. integral action. The proposed ... -
Dynamic positioning, system identification and control of marine vessels - based on Balchen model
Nuruddin, Abu Tammam Bin (Master thesis, 2024)Dynamic Positioning (DP) is essential for ensuring the secure operation of marine vessels across different industries. Hence, it is important to use reliable models and accurate control techniques for these vessels. The ... -
Dynamic system calibration by system identification methods
Ergon, Rolf; Di Ruscio, David Luigi (Chapter; Peer reviewed, 1997)Primary output variables from industrial processes can be estimated from known input variables and secondary process measurements. As a basis for this, the dynamic predictor has to be identi ed from data collected during ... -
Estimation, system identification and chemometrics
Ergon, Rolf; Di Ruscio, David Luigi; Esbensen, Kim H.; Hagen, Svein Thore (Conference report, 2000)In our master degree program in process automation, traditional modeling and control courses are supplemented by courses in experimental design and chemometrics. A corresponding inter-disciplinary research program supports ... -
Model Predictive Control with Integral Action: A simple MPC algorithm
Di Ruscio, David Luigi (Journal article; Peer reviewed, 2013)A simple Model Predictive Control (MPC) algorithm of velocity (incremental) form is presented. The proposed MPC controller is insensitive to slowly varying system and measurement trends and therefore has integral action. ... -
Model-free optimal anti-slug control of a well-pipeline-riser in the K-Spice/LedaFlow simulator
Dalen, Christer; Di Ruscio, David Luigi; Nilsen, Roar (Journal article; Peer reviewed, 2015)Simplified models are developed for a 3-phase well-pipeline-riser and tested together with a high fidelity dynamic model built in K-Spice and LedaFlow. These models are developed from a subspace algorithm, i.e. Deterministic ... -
Model-Free PI/PID Controller Tuning of Higher Order Nonlinear Dynamic Systems
Dalen, Christer; Di Ruscio, David Luigi (Peer reviewed; Journal article, 2019)This paper concerns model-free PI/PID controller tuning of possible (nonlinear) higher order systems. The method can be considered as a three-step procedure. The first step is to persistently excite the system in open loop ... -
On Tuning PI Controllers for Integrating Plus Time Delay Systems
Di Ruscio, David Luigi (Journal article, 2010)Some analytical results concerning PI controller tuning based on integrator plus time delay models are worked out and presented. A method for obtaining PI controller parameters, Kp = k , and, Ti = , which ensures a ... -
PD/PID controller tuning based on model approximations: Model reduction of some unstable and higher order nonlinear models
Dalen, Christer; Di Ruscio, David Luigi (Journal article; Peer reviewed, 2017)A model reduction technique based on optimization theory is presented, where a possible higher order system/model is approximated with an unstable DIPTD model by using only step response data. The DIPTD model is used to ... -
Performance optimal PI controller tuning based on integrating plus time delay models
Dalen, Christer; Di Ruscio, David Luigi (Journal article; Peer reviewed, 2018)A method for tuning PI controller parameters, a prescribed maximum time delay error or a relative time delay error is presented. The method is based on integrator plus time delay models. The integral time constant is linear ... -
System identification and dynamic positioning (DP) of ships
Wang, Liping (Master thesis, 2022)This report combines system identification and controller tuning for the developing of a DP system for a supply boat vessel. Project objectives include performing literature research about the DP system, implementing a ... -
Tuning PID Controllers: From process experiments, general linear state space models, and tuning controllers via Process Reaction Curve Methods
Kristiansen, Kevin Skogstad (Master thesis, 2022)In today’s industrial landscape, the necessity and usefulness of computer systems are undeniable. And with the need for computer systems and computer controller machinery, the interest in optimizing the efficiency of the ...