Tesis doctoral de Manuel Román Lumbreras
From last quarter of last century, and due to the big increase of electronic loads connected to mains, the existence of non-sinusoidal currents has been increased enormously, that is, the are a lot of harmonics in nowadays currents. This fact, in comparison to our environment, is named «electric pollution». the presence of this electronic loads exists in all power levels, from hundreds of va till some mva and, although the problem is worst as installed power is increased, it is not negligible the effect achieved by accumulation of so much small power loads. Due to this fact, specific regulations have been imposed. the conventional filter techniques, based on passive filter installation tuned at the supposed harmonics in the plant, became inadequate because of value and content variations of the harmonics as time passes. the presented work as a phd. Thesis deals with nowadays techniques in order to eliminate the harmonics and, also, the conventional reactive energy, by means of active filter of power techniques (afp), based on the use of power electronics converters and specific control algorithms. the present work exposes the main theoretical approaches about instant power in power systems, as well as their application techniques in order to compensate harmonics and reactive power by means of afp. Moreover, this work present new and better application of the theory above mentioned. This new approach consists in the simplification considering the instant active power as a really physical concept and easily measurable. more particularly, it is specially considered, thanks to its simplicity and extra good results, the so called general theory of simplified instant power (gtsip). Gtsip is applicable to mono-phase systems as well as three-phase systems with or without neutral line. prototypes have been built, with analogical and digital control, based on mentioned theories, and experimental results demonstrate the validity of the overall system. An industrial prot
Datos académicos de la tesis doctoral «Filtros activos de potencia para la compensacion instantanea de armonicos y energia reactiva.«
- Título de la tesis: Filtros activos de potencia para la compensacion instantanea de armonicos y energia reactiva.
- Autor: Manuel Román Lumbreras
- Universidad: Politécnica de catalunya
- Fecha de lectura de la tesis: 19/07/2006
Dirección y tribunal
- Director de la tesis
- Joan Bergas Jane
- Tribunal
- Presidente del tribunal: joan Peracaula roura
- Fernando Briz del blanco (vocal)
- eduard Ballester portillo (vocal)
- Alberto benjamin Diez gonzalez (vocal)