Search for dissertations about: "literature review on power quality"

Showing result 1 - 5 of 9 swedish dissertations containing the words literature review on power quality.

2. 1. Power control strategies for renewable energy systems : The inverter's role in future power systems

   Author : Sara Anttila; Cecilia Boström; Sandra Eriksson; Lena Max; Uppsala universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Renewable energy systems; Grid-connection; Inverter; Power control; Engineering Science with specialization in Science of Electricity; Teknisk fysik med inriktning mot elektricitetslära;

   Abstract : Connecting more non-dispatchable renewable energy sources (RESs) will result in a higher power variability and a lower system inertia when the synchronous generators are replaced by inverter-connected RES. Inverter control can be divided in three categories: grid-following, grid-forming (GFM) and grid-supporting. READ MORE

4. 2. On the hosting capacity of distribution networks for solar power

   Author : Enock Mulenga; Math Bollen; Nicholas Etherden; Luis (Nando) Ochoa; Luleå tekniska universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Aleatory; distribution networks; epistemic; hosting capacity; overvoltage; solar power; stochastic; Electric Power Engineering; Elkraftteknik;

   Abstract : The future will bring changes in energy production and consumption that will affect the performance of electricity distribution networks. Electric vehicle charging will increase consumption; the installation of solar photovoltaic (PV) units will increase production. Both will change the energy flow and affect the power quality. READ MORE

5. 3. Voltage Sags: Single event characterisation, system performance and source location

   Author : Roberto Chouhy Leborgne; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; source location; characterisation; voltage sags dips ; Power quality; indices;

   Abstract : This thesis deals with one of the most important disturbances that affect the quality of the electrical supply. Voltage sags cause industrial processes malfunction, producing an enormous economical impact. A voltage sag is defined as a short duration reduction of the rms voltage. READ MORE

6. 4. Beyond the Force: Redefining load exposure assessments of nutrunners for improved power tool ergonomics

   Author : Ava Mazaheri; Linda Rose; Mikael Forsman; Romain Haettel; Joel Cort; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Power Tools; Nutrunners; Work Related Musculoskeletal Disorders; Risk Assessment; Load Exposure; Assembly Work; Monteringsverktyg; Mutterdragare; Arbetsrelaterade Muskuloskeletala Besvär; Riskbedömning; Belastningsexponering; Monteringsarbete; Teknik och hälsa; Technology and Health;

   Abstract : Reaction force exposure from handheld tightening tools (also known as nutrunners) constitutes an acknowledged contributor to musculoskeletal disorders among assembly operators, and are today not regulated by explicit limits. The research presented in this thesis aimed at contributing to the development of recommended exposure limits for, and assessments of, reaction loads from handheld right-angle and pistol-grip tightening tools. READ MORE

7. 5. Towards the creation of learning improvement practices : Studies of pedagogical conditions when change is negotiated in contemporary healthcare practices

   Author : Ann-Charlott Norman; Lena Fritzén; Daniel Sundberg; Bill Lucas; Linnéuniversitetet; []
   Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; quality improvement; clinical microsystem; healthcare policy; critical discourse analysis; governing mechanism; knowledge management; negotiation; förbättringsarbete; hälso- och sjukvårdspolicy; arbetplatsrelaterat lärande; förhandling; Social Sciences; Samhällsvetenskap;

   Abstract : In the early 2010s, competitive market logic was introduced into healthcare systems so as to achieve rapid improvements. This took place as improvement policies began to emphasize the notion of collaboration as a method of ensuring patient safety across organizational boundaries. READ MORE