Electrónica industrial: problemas resueltos Julio Gomis-Tena Dolz, Emilio Figueres Amorós, Gabriel Garcerá Sanfeliú Ed. Univ. Politéc. Valencia

Principles of Transformer Design by Alfred Still

A Book which deals exclusively with the theory and design of alternating current transformers is not likely to meet the requirements of a College text to the same extent as if its scope were broadened to include other types of electrical machinery. On the other hand, the fact that there may be a limited demand for it by college students taking advanced courses in electrical engineering has led the writer to follow the method of presentation which he has found successful in teaching electrical design to senior students in the school of Electrical Engineering at Purdue University. Stress is laid on the fundamental principles of electrical engineering, and an attempt is made to explain the reasons underlying all statements and formulas, even when this involves the introduction of additional material which might be omitted if the needs of the practical designer were alone to be considered.
LINK1
http://www.forgottenbooks.org/books/Principles_of_Transformer_Design_1000221063
LINK2-FULL TEXT
https://archive.org/download/principlesoftran00stilrich/principlesoftran00stilrich.pdf 

Photovoltaic energy applications: state-of-the-art and perspectives Plenary Sessions BRASIL POWER ELECTRONICS CONFERENCE 2013

Photovoltaic energy applications: state-of-the-art and perspectives

(Download Presentation)
Prof. Roberto Ziles, Ph.D.
University of São Paulo, Brazil
Oct. 31th, Thursday, 8:30 am - 10:00 am
Abstract
The lecture devotes attention to the current situation of photovoltaic energy applications, discussing aspects such as the PV market characterization, technologies, costs and trends.
The lecture also describes the main configurations of photovoltaic systems and their integration into the national context, as well as major advances made in the country to provide the integration of distributed generation photovoltaic systems.
Biography
Roberto Zilles received his PhD in Telecommunications Engineering with specialty in Photovoltaic Systems from “Universidad Politecnica de Madrid” (1993) and the degree of “Livre Docência” with emphasis in renewable energy from São Paulo State University (2006). Currently, he is an Associate Professor and head of Scientific Division of Energy and Environment, Institute of São Paulo State University. Dr. Zilles is an Editorial Board member of “Progress in Photovoltaics: Research and Applications” journal, head of Brazilian Photovoltaic Energy Association, and vice head of Amazon National Institute of Science and Renewable Energy Technologies.

Video: Replacement power insulator 110KV

A New Three-Phase Parallel Active Power Filter with Outages and PCC Voltage Compensation

A New Three-Phase Parallel Active Power Filter
with Outages and PCC Voltage Compensation
by
WOO-CHEOL, LEE
Under the supervision of
Prof. DONG-SEOK HYUN, Ph.D.
Dept. of Electrical Engineering
The Graduate School of Hangyang University
This paper is a research on a new three-phase parallel active
power filter with outages and PCC voltage compensation under the
utility problems caused by the proliferation of non-linear loads such
as harmonics, increment of reactive power, voltage variation, and
blackouts. For these purposes, this paper presents (i) the optimal
design of parallel active power filter (ii) the modified PWM
modulation strategy which can operate the power conversion
system by using the single current sensor (iii) the detection method
of negative sequence and control scheme under the unbalanced load
condition (iv) the control method of constant PCC voltage (v) UPS
control method caused by blackouts in typical distribution systems
and the relations of each scheme.
 In a design method of the parallel active filter, an analytic model
on active filter is proposed. For this purpose, control circuit, power
 circuit, IGBT drive, and design method of the passive filter are
proposed. In a modified PWM modulation strategy, a technique for
reconstructing converter line currents using the information from a
single current sensor in the DC-link of a converter and comparative
evaluation of the performance of single sensor control techniques in
the DC-link for voltage-source PWM converters is presented. And
when 3f input currents cannot be reconstructed, three methods to
acquire the DC-link current are also proposed.
LINK
https://www.mediafire.com/?1u16ro18vksutdg