Course Project Assignment
ECE802 Modeling and Control of Power Electronics, Spring 2015
The goal of this research project is to gain and demonstrate your research capability
through identifying a research problem and solve it. It is highly desired that yo
Lec12 : Transfer Functions and
Small Signal Analysis
This lecture introduces frequency domain transfer functions and techniques for obtaining
small signal transfer functions that are of interest in power converter design and performance
analysis.
12.1
Int
Lec10 : Modeling Using Phasors
The focus of this lecture is to present systematic techniques for modeling switching power
converters in conjunction with their controls to determine their dynamic properties and
assess their performance in an ac power netwo
Lec11 : Modeling of Three-Phase
Systems
The focus of this lecture is to present the commonly adopted techniques for modeling of
three-phase systems based on the concept of space vectors. The associated coordinate
transformation is also introduced.
11.1
In
Lec5 : Double Fourier Series
Analysis
5.1
Introduction
The modulation process is essentially a sampling process where an original information signal is transformed into a sampled signal. The sampled signal will contain the frequency,
amplitude, and phase
Lec9 : Generalized Averaging
The averaged model was introduced in Lec#8. The averaging process involves the moving
average of time varying variables, which are the switching functions under consideration
there. The result of the averaging process is the e
Lec8 : State Space Modeling and
Time Domain Simulations
This lecture presents the development of state space models switching power converters.
Constraints on switching functions and relationships between throw and pole electrical
variables leading to an
Lec7 : Thermal Modeling
Accurate prediction of temperature variation of power semiconductor devices in power electronic circuits is important to obtain optimum designs and estimate reliability levels. Temperature estimation of power electronic devices has
Lec3 : Spectral Analysis
Quantifying the properties of terminal waveforms of power converters is essential to verifying
conformance to various power quality indices. Fourier analysis and its extensions are an
eective tool for this purpose. This lecture pr
Lec13 : Fundamentals of Dynamics
and Control
In the previous lectures, only the modeling of the system is considered. This lecture presents
an overview of the dynamics and control basics that will ensure the system behave as desired.
13.1
Introduction
The
Lec15 : Loop Gain Shaping and
Multiloop Control
This lecture presents loop gain shaping techniques and the multiple loop control.
15.1
Introduction
Desirable properties of a closed loop system can described in the from a Bode plot of the
loop gain (s), wh
Lec14 : Regulator Design Classical Approach
This lecture presents the commonly adopted regulator design methodology that is based on
classical control theory.
14.1
Introduction
It has been shown in Lec#13 that certain performance objectives could be trans
Assignment#4:
Assigned on: 4/9/2015; Due on: 4/30/2015 (Thursday)
This homework assignment is aimed to design the regulator based on frequency domain
model.
Based on the results of Assignment#2, choose the worst case in terms of power loss as
the point of
Assignment#1: Power Electronic
Circuits
Assigned on: 1/22/2015; Due on: 2/5/2015 (Thursday)
This homework assignment is aimed at: i) understanding the stiness requirement in power
electronic circuit; and ii) developing the solution of an ac switching powe
Assignment#2:
Assigned on: 2/12/2015; Due on: 2/26/2015 (Thursday)
This homework assignment is aimed at: i) to characterize the spectrum performance under
steady state operation; ii) to develop the loss model; iii) to understand the thermal analysis.
Assu
Assignment#3:
Assigned on: 3/19/2015; Due on: 4/9/2015 (Thursday)
This homework assignment is to analyze the system using the state space model. Make
necessary assumptions as appropriate.
For the rectier you proposed in Assignment#2, do the following:
1.
Lec0 : Case Study Converter:
ECHO
A conceptual block diagram of ECHO is shown in Figure 1. ECHO converters 115 Vrms, 60
Hz, three phase -connected voltage source into 208 Vrms line-line, 3-phase, Y-connected
4-wire, ungrounded output.
0.1
Input Characteri
Lec17 : AC Dynamic Interations
This lecture presents the dynamic interactions through a dynamic voltage restorer (DVR)
based on matrix converters.
17.1
Background Information about DVR and Matrix Converters
17.1.1
Dynamic Voltage Restorer
DVR was introduc
NGTB60N60SWG
IGBT
This Insulated Gate Bipolar Transistor (IGBT) features a robust and
cost effective Field Stop (FS) Trench construction, and provides
superior performance in demanding switching applications, offering
both low on state voltage and minimal
Lec16 : Rectiers
This lecture presents the modeling issues that are not in line with the high switching frequency assumption.
16.1
Single Phase Rectiers
AC-DC converters that are commonly called rectiers form an important class of power
converters in vari
Appendix C
Imaginary part identifier
j
1
Modulation frequency
fm 50
Modulation period
Tm
Modulation index
MI 0.9
Switching frequency
fs 10
Switching period
Ts
Hz
1
fm
3
Modulation function
Times series
t
Hz
1
Ts 1 10
s
fs
m ( t)
Tm 0.02
s
1
2
3
1 MI
Appendix D
Imaginary part identifier
j
1
Periods of two
functions
fh 100
Hz
fg 12
Frequencies of
two functions
Hz
1
fh
Tg
Maximum summation
index
Th
1
s
s
fg
Th 0.01
Tg 0.083
N 10
K 6
Harmonic coefficients
of two functions
Ch ( n)
1 j n
n
2
jn
Cg ( n
Lec2 : Steady State Models
Power converter topologies with switches in them need to be transformed into equivalent
circuits that do not contain switches, so that various steady state performance attributes of
the circuits may be determined. This paper pre
Things we will cover today Entropy
Information Theory Detour
Hayder Radha Presented by: Kiran Misra
Department of Electrical and Computer Engineering Michigan State University
October 8, 2008
Hayder Radha Presented by: Kiran Misra
ECE 802-606: Information
Signal Compression
167
Signal Compression
168
The Discrete Cosine Transform The DCT is by far the most popular transform for image and video compression applications. DCT has been adopted by leading international standards including JPEG for still image c
Signal Compression
114
Signal Compression
115
The Karhunen-Loeve Transform The KLT is the leading transform in terms of theoretical importance and in being optimal under
As before, we have the linear system: [Y ] = [T ] [ X ] ,
n1 nn n1
where X = [ X 1
X2
Signal Compression
68
Signal Compression
69
Linear Transformation of Random Sources Here, we briefly outline the basic properties of linear transformations of jointly random variables. To start with the most simple linear operation, if we assume that we h