Essays about: "Cost estimation"

Showing result 36 - 40 of 392 essays containing the words Cost estimation.

  1. 36. Real-Time Rotor Temperature Estimation Method for Interior Permanent Magnet Synchronous Machines : A method using a Lumped Parameter Thermal Network in combination with an estimation algorithm: implementation and comparison of a Dual Kalman Filter and a Dual Observer

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Elvira Niemelä; [2022]
    Keywords : Permanent Magnet Synchronous Machine; Permanent Magnet Temperature Estimation; Lumped Parameter Thermal Network; Dual Kalman Filter; Dual Observer; Permanentmagnetiserad Synkronmaskin; Temperaturestimering för Permanentmagneter; Lumped Parameter Thermal Network; Dual Kalman Filter; Dual Observer;

    Abstract : Accurate knowledge of the temperature of a Permanent Magnet Synchronous Machine is of high importance, not only to ensure safe operation and improve control of the operating point, but also to avoid irreversible demagnetization of rare-earth permanent magnets. However, direct measurement using thermal sensors is not suitable for high volume and low-cost applications, due to costly sensor installation and maintenance, and therefore, the magnet temperature needs instead to be estimated. READ MORE

  3. 37. Optimizing databases in the cloud based on performance and cost savings

    University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

    Author : Felix Nilsson; Daniel Mihajlovic; [2022]
    Keywords : Resource provisioning; Cloud service platform; Optimizing cost; Database; Performance; Metrics; Technology and Engineering;

    Abstract : As cloud service providers becomes more prevalent, so does questions related to cost efficiency of hosted resources. Payment models for cloud hosted resources tend to be either subscription based or pay-as-you-go for computing resources, in this case for compound metrics of CPU, Data IO and Log IO. READ MORE

  4. 38. Too Hot to Handle? : Performance of large-scale infrastructure projects in a Swedish district heating company

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Emma Fält; Julia Gunnarsson; [2022]
    Keywords : Project; Project performance; Large-scale infrastructure; District heating; Energy sector; Projekt; Projektutförande; Projektgenomförande; Storskalig infrastruktur; Fjärrvärme; Energisektorn;

    Abstract : Large-scale infrastructure projects are risky ventures, often subjected to poor performance. Time and cost are often escalating beyond estimation while quality and benefits remain unchanged. READ MORE

  5. 39. A GP-Surrogate-Based Bayesian Framework for Surge Barrier Optimization

    University essay from KTH/Matematik (Avd.)

    Author : Abel Valko; [2022]
    Keywords : Bayesian Optimization; Gaussian Process Regression; Storm Surge; GeoClaw; GISSR;

    Abstract : Tropical cyclone induced storm surges are some of the largest environmental risks facing infrastructure and human life in dense urban environments. Hurricane Sandy caused 44 deaths and damage of 19 billion US dollars in New York City alone. READ MORE

  6. 40. Modeling and Control of a PMSM Operating in Low Speeds

    University essay from Linköpings universitet/Fordonssystem

    Author : Robin Helsing; Tobias Sanchez; [2022]
    Keywords : PMSM; BLDC; low speed; EKF; UKF; MPC; Extended Kalman Filter; Unscented Kalman Filter; PI; Control; FOC;

    Abstract : A permanent magnet synchronous motor is a type of motor that is used in several different application areas, not least in an autonomous robots where it is the motor that drives the wheels. Today, many actors choose simulation as a tool to save money and time when product tests are performed. READ MORE