Ladislau AUGUSTINOV


30-08 PROIECTAREA UNUI SISTEM SOLAR FOTOVOLTAIC INSULAR, CU AJUTORUL UNUI SOFTWARE DEDICAT

DESIGN OF AN OFF-GRID PV SYSTEM WITH A
DEDICATED SOFTWARE
This work aims to design and simulate, using a dedicated software,
Sunny Design Web, an open source application provided by SMA SOLAR
TECHNOLOGY, an off-grid photovoltaic system meant to ensure an
independent, smart and comfortable energy supply with solar power for private
households. Using this application, the designing process of PV systems has
become more simple and accessible for non-specialist in the field too, opening
on this the path to produce clean energy and provide energy independence for
many private households.
Keywords: PV system, design and simulate, monitoring system,
energy production, Sunny Design Web
Cuvinte cheie: sistem solar fotovoltaic insular, proiectare și simulare,
sistem de monitorizare, producţie de energie, Sunny Design Web

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21-39 INFLUENŢA PĂTURII DE CURENT DIN ÎNFĂŞURAREA TRIFAZATĂ A UNUI GENERATOR SINCRON, ASUPRA REACTANŢELOR ACESTUIA

INFLUENCE OF CURRENT BLANKET FROM THREE-PHASE
WINDING OF SYNCHRONOUS GENERATOR ON
REACTANCES OF ITS
In the optimal design of synchronous generator is necessary to
analyze the influence of different important sizes (current blanket, A, induction
of the air gap, Bδ, the stator inner diameter, D, air gap width, δ, etc.) on the
external parameters (dimensions, mass, cost, efficiency, etc.) or internal
(reactance, currents, time constants, etc.) of the synchronous generator. In this
paper we analyze the influence of the current blanket reactance synchronous
generator. Analysis was performed using an optimization program written in
MathCad.
Keywords: Blankets current, synchronous generator, design, optimization,
reaction.
Cuvinte cheie: pătura de curent, generator sincron, proiectare, optimizare,
reactanţe.

39 INFLUENŢA PĂTURII DE CURENT DIN ÎNFĂŞURAREA


21-38 INFLUENŢA MĂRIMII ÎNTREFIERULUI UNUI GENERATOR SINCRON TRIFAZAT, ASUPRA COSTULUI TOTAL AL ACESTUIA

INFLUENCE OF SIZE AIR GAP A THREE-PHASE
SYNCHRONOUS GENERATOR THE TOTAL COST OF ITS
The total cost of a three-phase synchronous generator, containing the
cost of manufacturing and operating costs throughout its life, depends on the
size of the generator and its air gap. The air gap is size with a small value
compared with dimensions of synchronous generator, but is strongly influenced
by electromagnetic requests. In this paper we aimed to analyze the influence of
air gap variation on overall dimensions, mass of active materials, loss of these
and implicitly on the total cost. This analysis was possible after writing a
program for optimal design of synchronous generator using MathCAD software.
Cuvinte cheie: întrefier, generator sincron, optimizare, cost total
Keywords: air gap, synchronous generator, optimization, total cost

38 INFLUENŢA MĂRIMII ÎNTREFIERULUI UNUI