Sökning: "Tight control"

Visar resultat 1 - 5 av 142 avhandlingar innehållade orden Tight control.

  1. 1. Management control and strategy : a case study of pharmaceutical drug development

    Författare :Fredrika Berglund; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Management control systems; Tight control; Loose control; Interactive control; Diagnostic control; Budget; Portfolio management; Project management; Goals and Objectives systems; Business strategy; Research Development; Pharmaceutical; Computer science; Datavetenskap; Economic Information Systems; Ekonomiska informationssystem;

    Sammanfattning : How are formal management controls designed and used in research & development (R&D)? The purpose of this study is to explain how such systems are designed and used in formulating and implementing strategies in a pharmaceutical product development organisation. The study uses a contingency approach to investigate how the control system is adjusted to the business strategy of the firm. LÄS MER

  3. 2. Applications of Information Inequalities to Linear Systems : Adaptive Control and Security

    Författare :Ingvar Ziemann; Henrik Sandberg; Alexandre Proutiere; Nikolai Matni; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Stochastic Adaptive Control; Machine Learning; Fisher Information; Secure Control; Fundamental Limitations; Reinforcement Learning; Electrical Engineering; Elektro- och systemteknik;

    Sammanfattning : This thesis considers the application of information inequalities, Cramér-Rao type bounds, based on Fisher information, to linear systems. These tools are used to study the trade-offs between learning and performance in two application areas: adaptive control and control systems security. LÄS MER

  4. 3. Robust Control of an Induction Motor Drive

    Författare :Henrik Mosskull; Bo Wahlberg; Marian Kazmiekowski; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Automatic control; Reglerteknik;

    Sammanfattning : This thesis considers robust control of an induction motor drive, consisting of an input filter, a voltage source inverter and one or several induction motors in parallel. The motor torque is here controlled by using the method Indirect Self Control (ISC), and power oscillations between the inverter and the input filter are damped by means of a stabilization controller in an outer feedback loop. LÄS MER

  5. 4. Fault detection in lambda-tuned control loops

    Författare :Magnus Berndtsson; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Reglerteknik; Control Engineering;

    Sammanfattning : Poorly operating control loops cause loss in productivity in almost every industry worldwide. Therefore performance monitoring has been an active area of research for the past decades. In this work, a newly developed fault detection method is applied to the monitoring of lambda-tuned control loops. LÄS MER

  7. 5. Computational Methods for Optimal Control of Hybrid Systems

    Författare :Sven Hedlund; Institutionen för reglerteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; reglerteknik; Automation; robotics; control engineering; robotteknik; Automatiska system;

    Sammanfattning : This thesis aims to find algorithms for optimal control of hybrid systems and explore them in sufficient detail to be able to implement the ideas in computational tools. By hybrid systems is meant systems with interacting continuous and discrete dynamics. Code for computations has been developed in parallel to the theory. LÄS MER