KCE/ DEPT. OF ELECTRICAL AND ELECTRONICS ENGINEERING

DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERINGCOURSE PLANSub. Code : PS7005

Branch / Year / Sem : PE&D/ II /III

Sub. Name : High Voltage DC Transmission Batch : 2013-2015Staff Name : P.Narasimman

Academic Year : 2014-15 (ODD)

OBJECTIVE To impart knowledge on operation, modelling and control of HVDC link. To perform steady state analysis of AC/DC system.

Analyse the MTDC systems and its control.

Model of HVDC systems for Digital Dynamic Simulation and demonstrate about the grounding of HVDC systems

LEARNING OUTCOMETo familiarize the students with concepts related to the high voltage dc transmission and various HVDC simulators.REFERENCE booksR1. P. Kundur, Power System Stability and Control, McGraw-Hill.R2. K.R.Padiyar, , HVDC Power Transmission Systems, New Age International (P) Ltd., New

Delhi, 2002.

Web Resources

W1. http://www.mathworks.in/help/physmod/sps/powersys/ug/vsc-based-hvdc-link.htmlW2. DC%20System%20Interactions.pdf" http://bbs.sciencenet.cn/bbs/upload/11781Case%20Studies%20of%20AC

DC%20System%20Interactions.pdf.W3. www.siemens.co.in/pool/about_us/our.../hvdc_proven_technology.pdfTopic NoTopicBooks for ReferencePage No.Teaching MethodologyNo. of Hours RequiredCumulative No. of periods

UNIT I : DC POWER TRANSMISSION TECHNOLOGY

1Introduction- Comparison of AC and DC

transmissionR2

1 - 7BB11

2Application of DC

transmission - Description

of DC transmission

system7 - 14BB12

3Planning for HVDC

transmission15 - 18BB13

4Modern trends in DC transmission18 - 20BB14

5DC breakers122 -126BB15

6Cables, VSC based

HVDC.W1-BB16

UNIT II : ANALYSIS OF HVDC CONVERTERS AND HVDC SYSTEM CONTROL

7Pulse number, choice of converter configurationR242 - 46BB28

8Simplified analysis of Graetz circuit - Converter bridge characteristics46 - 61BB210

9characteristics of a twelve pulse converter61 - 65BB111

10Detailed analysis of converters. General

principles of DC link

control65 79

BB213

11Converter control

Characteristics- System

control hierarchy79 - 84BB114

12Firing angle control-

current and extinction

angle control84 - 96BB115

13Generation of harmonics and filtering145 -158BB217

14Power control- Higher

level controllers.130 -144BB118

UNIT III : MULTITERMINAL DC SYSTEMS

15Introduction - Potential

applications of MTDC systems

R2159 -160BB321

16Types of MTDC systems160 -164BB223

17Control and protection of MTDC systemsR2164- 169BB225

18Study of MTDC systems169 -171BB227

UNIT IV : POWER FLOW ANALYSIS IN AC/DC SYSTEMS

19Per unit system for DC QuantitiesR2193-194229

20Modelling of DC links188 - 191231

21Solution of DC load flow192-193233

22Solution of AC- DC

power flow 194 -198134

23Unified Sequential and

Substitution of power

injection methodW3-236

UNIT V : SIMULATION OF HVDC SYSTEMS

24Introduction - DC Link ModellingR1544 -555238

25Converter Modeling and State Space Analysis240

26Philosophy and toolsR2253 - 254141

27HVDC system simulation, Online and OFF line simulators254 - 258243

28Dynamic interactions

between DC and AC systems.W2-245

ASSIGNMENT IASSIGNMENT IIASSIGNMENT III

Descriptive Questions

1. Explain the technological

development in control and

protection , for better performance and reliability of dc transmission

system. 1. Explain the analysis of 12

pulse converter with bridge

rectifier.

1.Derive an equation for

harmonic voltage and

current for single tuned

filter and discuss the

influence of network

admittance.

2. Explain in detail about the

Planning of hvdc transmission. 2. Explain the different types of

MTDC systems. 2.Describe the philosophy

and tools used in HVDC

simulation.

3. For a 3 phase 6 pulse gratezs

circuit draw the timing diagram

considering overlap angle is less

than 60 degree and without

overlap for the following.

a) Voltage across load.

b) Voltage across any two pair of conduction valves.

3.Explain the control and

protection of MTDC systems.

3.Explain in detail about the modeling of HVDC

system for digital dynamic

simulation.

Short Questions

1. What are the types of transmission system?

2. What is the need of smoothing reactor?

3. How will overcome the

disadvantages in dc transmission?4. Define pulse number.5. What is meant by neglecting

overlap in graetz in bridge circuit?

1. Define peak inverse

Voltage.2. Draw the schematic

diagram of three & two

valve conduction mode.

3. What are the advantages of Multiterminal DC system?4. Short notes on:

serial MTDC

5. What are the disadvantages of Parallel MTDC systems?1. Define total harmonics distortion.2. Comparison betweensimultaneous andSequential methods.3. Draw the flow chart of AC/DC load flow.4. What are the requirements for good

simulation tool?5. What are the two approaches are available in transient analysis of simulation?

CONTENT BEYOND THE SYLLABUS1. Comparison between different power semiconductor devices.

INTERNAL ASSESSMENT DETAILSTEST NO.IIIMODEL

Topic Nos.1 - 89 - 181- 28

Date

ASSIGNMENT DETAILS

ASSIGNMENTIIIIII

Topic Nos. for reference1 - 89 - 1819 - 28

Deadline

Prepared by

Verified By

P.NARASIMMAN

[HOD/EEE]

Approved by

PRINCIPAL

After Completion of syllabus

Faculty experience in handling / covering syllabus

Difficulties (if any)

Faculty name and sign HOD/EEE

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