A joint optimization problem of link-layer energy efficiency (EE) and effective capacity (EC) in a Nakagami-m fading channel under a delay-outage probability constraint and Continue reading
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Tag: Power Electronics
Virtual RC Damping of LCL-Filtered Voltage Source Converters With Extended Selective Harmonic Compensation (Electrical Project)
ABSTRACT
Active damping and harmonic compensation are two common challenges faced by LCL-filtered voltage source converters. To manage them holistically, this paper begins by proposing a virtual RC damper in Continue reading
Sensorless Rotor Position Estimation For Brushless DC Motors (Electrical Project)
Brushless DC motor speed is controlled by synchronizing the stator coil current with rotor position in order to acquire an accurate alignment of stator rotating field with rotor permanent-magnet field for efficient transfer of energy. In order to accomplish this Continue reading
AC Power Monitoring System (Electrical Project)
ABSTRACT
Motivated by high energy costs, people and organizations want to cut back on their energy consumption. However, the only feedback consumers typically receive is a monthly bill listing their total electricity usage (in kWh). Some companies have Continue reading
Cell Phone Charger for the DC House Project (Electronics Project)
The goal of this project is to create a multiple output cell phone charger for the DC House project. The cell phone charger is essentially a DC-DC converter. The converter takes an input of 48 volts from the outlet in the DC House and decreases the Continue reading
Soft-Switching DC-DC Converters (Electrical Project)
Power electronics converters are implemented with switching devices that turn on and off while power is being converted from one form to another. They operate with high switching frequencies to reduce the size of the Continue reading
Evaluating the detail level of reliability analyses used in the investment planning at Fortum Distribution AB (Electrical/Electronics Project)
This project is a cooperation between Fortum Distribution AB and The Royal Institute of Technology (KTH). When maintaining and operating a power distribution system, which is the task of Continue reading
Power quality in low voltage grids with integrated microproduction (Electrical/Electronics Project)
This report seeks to evaluate and predict possible power quality issues regarding Fortums engagement in the project of Stockholm Royal Seaport. Stockholm Royal Seaport is a city district planned by Stockholm Municipality to be constructed based on Continue reading
Thermoeconomic Analysis and Optimisation of Air-Based Bottoming Cycles for Water-Free Hybrid Solar Gas-Turbine Power Plants (Mechanical Project)
The growing worldwide energy demand and the impacts of climate change due to anthropogenic greenhouse gases emissions are among the major issues facing humanity. The global energy system, responsible for most of the greenhouse gases emissions, is therefore at the heart of Continue reading
Inhibition of Linear Absorption in Opaque Materials Using Phase-Locked Harmonic Generation (Electrical Project)
We theoretically predict and experimentally demonstrate inhibition of linear absorption for phase and group velocity mismatched second- and third-harmonic generation in strongly absorbing materials, GaAs, in particular, at Continue reading
Harmonic Generation in Multiresonant Plasma Films (Electrical Project)
We investigate second- and third-harmonic generation in a slab of material that displays plasma resonances at the pump and its harmonic frequencies. Near-zero refractive indices and local field enhancement can deplete the pump for Continue reading
Subwoofer Frequency Response Optimization by Means of Active Control (Electrical/Electronics Project)
ABSTRACT
Most subwoofer systems have difficulties producing frequencies in the low end of the hearing spectrum due to the added power requirements and instabilities. Active controls can transform the audio signal without changing physical characteristics and Continue reading