HVDC Transmission JNTU Syllabus

HVDC Transmission JNTU Syllabus

JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY
KAKINADA
IV Year B.Tech EEE I-Sem T P C
4+1* 0 4
H.V.D.C. TRANSMISSION
(ELECTIVE-I)
Objective :
This subject deals with the importance of HVDC transmission, analysis of HVDC converters, Faults and
protections, Harmonics and Filters. It also deals with Reactive power control and Power factor
improvements of the system.
UNIT – I BASIC CONCEPTS
Economics & Terminal equipment of HVDC transmission systems: Types of HVDC Links – Apparatus
required for HVDC Systems – Comparison of AC &DC Transmission, Application of DC Transmission
System – Planning & Modern trends in D.C. Transmission.
UNIT – IIANALYSIS OF HVDC CONVERTERS
Choice of Converter configuration – analysis of Graetz – characteristics of 6 Pulse & 12 Pulse converters –
Cases of two 3 phase converters in star –star mode – their performance.
UNIT – III CONVERTER & HVDC SYSTEM CONTROL
Principal of DC Link Control – Converters Control Characteristics – Firing angle control – Current and
extinction angle control – Effect of source inductance on the system; Starting and stopping of DC link;
Power Control.
UNIT-IV REACTIVE POWER CONTROL IN HVDC
Reactive Power Requirements in steady state-Conventional control strategies-Alternate control strategiessources
of reactive power-AC Filters – shunt capacitors-synchronous condensers.
UNIT –V POWER FLOW ANALYSIS IN AC/DC SYSTEMS
Modelling of DC Links-DC Network-DC Converter-Controller Equations-Solution of DC loadflow – P.U.
System for d.c. quantities-solution of AC-DC Power flow-Simultaneous method-Sequential method.
UNIT-VI CONVERTER FAULT & PROTECTION
Converter faults – protection against over current and over voltage in converter station – surge arresters –
smoothing reactors – DC breakers –Audible noise-space charge field-corona effects on DC lines-Radio
interference.
UNIT – VII HARMONICS
Generation of Harmonics –Characteristics harmonics,calculation of AC Harmonics,Non- Characteristics
harmonics, adverse effects of harmonics – Calculation of voltage & Current harmonics – Effect of Pulse
number on harmonics
UNIT-VIII FILTERS
Types of AC filters,Design of Single tuned filters –Design of High pass filters.
TEXT BOOKS:
1. HVDC Power Transmission Systems: Technology and system Interactions – by K.R.Padiyar,
New Age International (P) Limited, and Publishers.
2. EHVAC and HVDC Transmission Engineering and Practice – S.Rao.
REFERENCE BOOKS:
1. HVDC Transmission – J.Arrillaga.
2. Direct Current Transmission – by E.W.Kimbark, John Wiley & Sons.
3. Power Transmission by Direct Current – by E.Uhlmann, B.S.Publications.

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