report | arm代写 | EE代写 | logism代写 - 7004CEM Power Semiconductor Devices and Converters – 学霸代写– CS代写| CS作业代写| Computer Science留学生作业代写| 淘宝托管

TITLE

report | arm代写 | EE代写 | logism代写 – 这道题目是EE方面的题目

for this module and should not be passed to third parties or posted on any website. Any infringements
of this rule should be reported to xxx.

Faculty of Engineering, Environment and Computing

7004CEM Power Semiconductor Devices and

Converters

assignment Brief

Module Title:

7004CEM Power Semiconductor

Devices and Converters

(^) Individual Cohort: 2223 SEP-JAN Resit- 1 Jan 23 Module Code: 7004CEM Coursework Title (e.g. CWK1) CW Hand out date: 31 January 2023 Lecturer: Dr. Rajib Goswami Due date and time: Date: 03 April 2023 Online (Aula): 18:00: Estimated Time (hrs): 15 Word Limit*: 1000 Coursework type: Individual assignment % of Module Mark: 25% of module mark Submission arrangement online via Aula. File types and method of recording: .pdf Mark and Feedback date (DD/MM/YY): Mark and Feedback method (e.g. in lecture, electronic via Aula): Aula Module Learning Outcomes Assessed:

Demonstrate knowledge of device structures and show understanding of how devices operate and used in converter topologies.
Design power converter topologies and analyse their operation.
Understand and critically evaluate how various switching techniques affect the converter operation.

Marks breakdown Max

Part A: Power semiconductor devices characteristics and power converter

operations 50 %^

Part B: Literature review on the recent advancements in Power semiconductor

devices and Power converters ( 50 points) 50%^

Total 100%
Assessment criteria:

A perfectly correct technical solution presented to high professional standards with commentary and
insights including detailed references and demonstrating additional research can expect to be awarded
>80%.

Marks will be lost for errors, poor presentation, and lack of details in analysis and commentary.

for this module and should not be passed to third parties or posted on any website. Any infringements
of this rule should be reported to [email protected].

Task details

You should follow guidance of submission. Do not leave submission to the last minute.
For the required graphs, all the labels and waveforms should be readable and clear. It is recommended to export the simulation data to a .txt file and then draw the graph using an appropriate computer software package (e.g. MATLAB, Excel etc). LTspice (LTspice Simulator | Analog Devices) is a widely used simulation software for power semiconductor devices and power electronics converters. In Part A of this coursework you should use LTspice to simulate power semiconductor devices and power converters and then compare with lecture notes to further understand devices characteristics and their applications in power converters. LTspice is available via AppsAnywhere

Part A: Power semiconductor devices characteristics and power converter operations

( 50 points)

I. Characteristics of Power Semiconductor devices in switching conditions ( 35 points)

Create a new schematic as shown in Fig. I 1 , which will be used to study MOSFET switching

characteristics. Notice that the two sources are connected in series at the gate of the MOSFET

(V3 and V4 in the figure). Set them as pulsed voltage sources (right click-PULSE). Set one of them

with the following parameters: Vinitial=0V, Von=10V, Tdelay=200n, Trise=15ns, Tfall=15ns,

Ton=2.75us and Tperiod=2.8us, 1 cycles, and the other with these parameters: Vinitial=0V,

Von=10V, Tdelay=5.75us, Trise=15ns, Tfall=15ns, Ton=1us and Tperiod=1.1us, 1 cycle.

Fig. I 1

Use transient simulation (simulate-edit simulation command) and set stop time to 9us.

Obtain L1 current waveform I(L1), Vgs and Vds voltage waveform. Now, answer the following

questions.

L
100

M
R6020PNJ

PULSE(0 10 200n 15n 15n 2.75e-6 2.8e-6 1)

PULSE(0 10 5.75e-6 15n 15n 1e-6 1.1e-6 1)

VG

VD

VS

.tran 0 9u 1n 10n

for this module and should not be passed to third parties or posted on any website. Any infringements
of this rule should be reported to [email protected].

a) What is a double pulse test? Why is it useful in power device switching characteristics

testing? Based on the waveforms obtained in I (a) , what is the duration of the first gate

pulse and second gate pulse (show in figure)? What is the relationship between first gate

pulse duration and inductor current, I(L1)? At approximately what inductor current, I(L1)

the second turn-ON is occurring? (5 points)

b) Calculate the pulse widths and modify the V3 and V4 sources accordingly, so that the first

turn-OFF and second turn-ON occur at approximately 1 4 A of inductor current. Show your

calculations and justify based on the simulated waveforms, I(L1), Vgs, Vds and Id. ( 5

points)

c) Present MOSFET Vgs, Vds and Id switching waveforms for the first MOSFET turn-OFF at

around 1 4 A (zoom into Vds low to high transition). Explain different steps of MOSFET turn-

OFF switching transition (follow lecture notes for explanation). ( 5 points)

d) Present MOSFET Vgs, Vds and Id switching waveforms for the second MOSFET turn-ON at

around 1 4 A (zoom into Vds high to low transition). Explain different steps of MOSFET

turn-ON switching transition (follow lecture notes for explanation). ( 5 points)

e) Calculate (using LTspice not by hand) MOSFET turn-ON and turn-OFF switching energy

under the above conditions (when switching is at around 1 4 A). ( 5 points)

f) Add parasitic inductance(L2 = 10nH) and resistance (R2 = 0.1) in the switching l oop as

shown in Fig. I 2. Run the transient simulation and explain the impact of parasitic

inductance L2 on MOSFET Vgs, Vds and Id turn-OFF and turn-ON switching waveforms (at

around 1 4 A) in comparison with those without the parasitic inductance and resistance. (

points)

g) In the circuit of Fig. I 2 , change the diode D1 with the diode model RFUH60TS6D (right

click, Pick New Diode and select RFUH60TS6D). Run the simulation and explain the

impact of this diode on MOSFET Vgs, Vds and Id turn-OFF and turn-ON switching

waveforms (at around 1 4 A) in comparison with those obtained for the previous diode. (

points)

Fig. I 2

for this module and should not be passed to third parties or posted on any website. Any infringements
of this rule should be reported to [email protected].

II. Boost converter operation. ( 15 points)

Create a boost converter schematic as shown in Fig. II- 1. V 2 is the reference signal and V 3 is a

tri angular signal. B1 is a behavioural voltage source (Edit-Component-bv). It can be used to

generate required PWM signals. Put two labels at the output of V 2 and V 3 (Edit-Label net).

Rename them to Vref and Vtri as shown in Fig. II- 1. Boost converter continuous current mode

(CCM) will be studied here.

a) If output voltage across the load resistor, V(vout) is 4 00V, what is the Vref (source V2 in

Fig. II- 1 ) value (calculate and simulate)? Run the simulation until a steady-state is reached.

Then present, V(vout) and verify if it is the same value as in your calculation. ( 5 points)

b) Present the input and output current and voltage waveforms along with the current and

voltage waveforms for the MOSFET, diode and the inductor considering a switching cycle.

Obtain average output power and input power and calculate the efficiency. What is the

total power loss in the MOSFET, M1 and diode, D1? Justify the efficiency calculations by

referring to device conduction and switching losses. ( 10 points)

Fig. II 1

M
R6020PNJ

0.

PULSE(1 0 0 10u 10u 0 20u)

V=IF(V(Vref)>V(Vtri),10,0)

C
10

R
80

Vd

Vref Vtri

Out Vg

Vout

.tran 0 40m 1n 20n

for this module and should not be passed to third parties or posted on any website. Any infringements
of this rule should be reported to [email protected].

Part B: Literature review on the recent advancements in Power semiconductor devices and

Power converters ( 50 points)

You will have to review the literature ( 4 00 words) on one of the following topics. Choose at least 2 research papers from the IEEE Xplore based on your chosen topic. In your report you should mainly highlight the issues that are being addressed, and what are the specific contributions towards the solutions proposed in those papers. You need to follow, the Coventry University APA style for referencing.

The broad topic areas are as follows:

Switching characteristics of Power MOSFETs, can also be of SiC MOSFETs, GaN FETs etc. or IGBTs (can be associated to double pulse testing or in a power converter)
Electromagnetic interference (EMI) issues in and mitigation DC-DC or AC-DC power converters (may include EMI filter design of power converters)
Converter topology/topologies for bidirectional Electric Vehicle battery charger
DC-AC traction inverter topologies for electric vehicles
Modulation techniques for EV traction inverters
Thermal management of power electronic converters
Current sensing techniques for power electronic converters

You can use IEEE Xplore or Google Scholar for searching and finding the papers on your chosen topic. The mentioned topics are given to develop a broad understanding of different important aspects in Power semiconductor devices and Power converters. If you just copy and paste the whole topic names above into the search box, that might not give you the most useful papers, hence search wisely, firstly thinking about what exactly you are searching for.

Your report may include the following:

1) An appropriate title following your chosen topic
2) Introduction: here you may include and highlight the issues that are being addressed in your
chosen papers.
3) Details of the contributions: You can discuss the specific contributions towards the solutions
proposed in those papers. You can compare the solutions proposed in the papers based on their
merits.
4) Conclusion: Summarize your understanding of the issues and proposed solutions.
5) References

N.B. References are not included in the word count. Also, you must be within  10% of the word
count.

Notes:

You are expected to use the Coventry University APA style for referencing. For support and advice on this students can contact Centre for Academic Writing (CAW).
Please notify your registry course support team and module leader for disability support.
Any student requiring an extension or deferral should follow the university process as outlined here.

for this module and should not be passed to third parties or posted on any website. Any infringements of this rule should be reported to [email protected].

The University cannot take responsibility for any coursework lost or corrupted on disks, laptops or personal computer. Students should therefore regularly back-up any work and are advised to save it on the University system.
If there are technical or performance issues that prevent submitting coursework through the online coursework submission system on the day of a coursework deadline, an appropriate extension to the coursework submission deadline will be agreed. This extension will normally be 24 hours or the next working day if the deadline falls on a Friday or over the weekend period. This will be communicated via your Module Leader.
You are encouraged to check the originality of your work by using the draft Turnitin links on Aula.
Collusion between students (where sections of your work are similar to the work submitted by other students in this or previous module cohorts) is taken extremely seriously and will be reported to the academic conduct panel. This applies to both coursework and exam answers.
A marked difference between your writing style, knowledge and skill level demonstrated in class discussion, any test conditions and that demonstrated in a coursework assignment may result in you having to undertake a Viva Voce in order to prove the coursework assignment is entirely your own work.
If you make use of the services of a proof reader in your work you must keep your original version and make it available as a demonstration of your written efforts. Also, please read the university Proof Reading Policy.
You must not submit work for assessment that you have already submitted (partially or in full), either for your current course or for another qualification of this university, with the exception of resits, where for the coursework, you maybe asked to rework and improve a previous attempt. This requirement will be specifically detailed in your assignment brief or specific course or module information. Where earlier work by you is citable, i.e. it has already been published/submitted, you must reference it clearly. Identical pieces of work submitted concurrently may also be considered to be self-plagiarism.

This document is for Coventry University students for their own use in completing their assessed work for this module and should not be passed to third parties or posted on any website. Any infringements of this rule should be reported to [email protected].

Marking Rubric

PG Mark band

Outcome Guidelines

90 – 100%

Distinction

Meets learning
outcomes

Distinction - Exceptional work with very high degree of rigour, creativity and critical/analytic skills. Mastery of
knowledge and subject-specific theories with originality and autonomy. Demonstrates exceptional ability to analyse and
apply concepts within the complexities and uncertainties of the subject/discipline.
Innovative research with exceptional ability in the utilisation of research methodologies. Demonstrates, creativity,
originality and outstanding problem-solving skills. Work completed with very high degree of accuracy, proficiency and
autonomy. Exceptional communication and expression demonstrated throughout. Student evidences the full range of
technical and/or artistic skills. Work pushes the boundaries of the discipline and may be strongly considered for external
publication/dissemination/presentation.

80 – 89%

Distinction

Distinction - Outstanding work with high degree of rigour, creativity and critical/analytic skills. Near mastery of
knowledge and subject-specific theories with originality and autonomy. Demonstrates outstanding ability to analyse and
apply concepts within the complexities and uncertainties of the subject/discipline.
Innovative research with outstanding ability in the utilisation of research methodologies. Work consistently
demonstrates creativity, originality and outstanding problem-solving skills. Work completed with high degree of
accuracy, proficiency and autonomy. Outstanding communication and expression demonstrated throughout. Student
demonstrates a very wide range of technical and/or artistic skills. With some amendments, the work may be considered
for external publication/dissemination/presentation

70 – 79%

Distinction

Distinction - Excellent work undertaken with rigour, creativity and critical/analytic skills. Excellent degree of knowledge
and subject-specific theories with originality and autonomy demonstrated. The work exhibits excellent ability to analyse
and apply concepts within the complexities and uncertainties of the subject/discipline.
Innovative research with excellent ability in the utilisation of research methodologies. Work demonstrates creativity,
originality and excellent problem-solving skills. Work completed with very consistent levels of accuracy, proficiency and
autonomy. Excellent communication and expression demonstrated throughout. Student demonstrates a very wide
range of technical and/or artistic skills.
60 - 69%

Merit

Merit - Very good work often undertaken with rigour, creativity and critical/analytic skills. Very good degree of
knowledge and subject-specific theories with some originality and autonomy demonstrated. The work often exhibits the
ability to fully analyse and apply concepts within the complexities and uncertainties of the subject/discipline.

Very good research evidence and shows very good ability in the utilisation of research methodologies. Work
demonstrates creativity, originality and problem-solving skills. Work completed with very consistent levels of accuracy,
proficiency and autonomy. Very good communication and expression demonstrated throughout. Student demonstrates
a wide range of technical and/or artistic skills.

50 – 59%

Pass

Pass - Good work undertaken with some creativity and critical/analytic skills. Demonstrates knowledge and subject-
specific theories with some originality and autonomy demonstrated. The work exhibits the ability to analyse and apply
concepts within the complexities and uncertainties of the subject/discipline.
Good research and shows some ability in the utilisation of research methodologies. Work demonstrates problem-solving
skills and is completed with some level of accuracy, proficiency and autonomy. Satisfactory communication and
expression demonstrated throughout. Student demonstrates some of the technical and/or artistic skills.

40 – 49%

Pass

Pass - Assessment demonstrates some advanced knowledge and understanding of the subject informed by current
practice, scholarship and research. Work may be incomplete with some irrelevant material present. Sometimes
demonstrates the ability to analyse and apply concepts within the complexities and uncertainties of the
subject/discipline.
Acceptable research with evidence of basic ability in the utilisation of research methodologies. Demonstrates some
originality, creativity and problem-solving skills but often with inconsistencies. Expression and presentation sufficient for
accuracy and proficiency. Sufficient communication and expression with professional skill set. Student demonstrates
some technical and/or artistic skills.

30 – 39%

Fail Fails to achieve
learning
outcomes

Fail - Very limited understanding of relevant theories, concepts and issues with deficiencies in rigour and analysis. Some
relevant material may be present but be informed from very limited sources. Fundamental errors and some
misunderstanding likely to be present. Demonstrates limited ability to analyse and apply concepts within the
complexities and uncertainties of the subject/discipline.
Limited research scope and ability in the utilisation of research methodologies. Limited originality, creativity, and
struggles with problem-solving skills. Expression and presentation insufficient for accuracy and proficiency. Insufficient
communication and expression and with deficiencies in professional skill set. Student demonstrates deficiencies in the
range of technical and/or artistic skills.

20 - 29%

Fail -

Fail - Clear failure demonstrating little understanding of relevant theories, concepts, issues and only a vague knowledge
of the area. Little relevant material may be present and informed from very limited sources. Serious and fundamental
errors and virtually no evidence of relevant research. Fundamental errors and misunderstandings likely to be present.

Little or no research with no evidence of utilisation of research methodologies. No originality, creativity, and struggles
with problem-solving skills. Expression and presentation insufficient for accuracy and proficiency. Insufficient
communication and expression and with serious deficiencies in professional skill set. Student has clear deficiencies in
range of technical and/or artistic skills.

0 – 19%

Fail

Fail - Clear failure demonstrating no understanding of relevant theories, concepts, issues and no understanding of area.
Little or no relevant material may be present and informed from minimal sources. No evidence of ability in the
utilisation of research methodologies. No evidence of originality, creativity, and problem-solving skills. Expression and
presentation deficient for accuracy and proficiency. Insufficient communication and expression and with deficiencies in
professional skill set. Student has clear deficiencies in range of technical and/or artistic skills.