hvdc syndicate final-modified

7/30/2019 HVDC Syndicate Final-Modified

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The Role and Prospects of HVDC

System in PakistanMerits and Demerits using DC System

as compare to AC System

PRESENTED BY

GROUP A82ND JMC

WASC


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Contents

3

Introduction and Fundamentals of Project

HVDC System Components

HVDC Schemes and History

Case Study

Overview

Transmission Schemes

Cost Analysis

Environmental Impacts

Conclusion

References

Introduction &fundamentals

HVDC systemcomponents

HVDC schemes& history

Case Study:Overview

TransmissionSchemes

Cost analysis

Impact &Implementation

3


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OVERVIEW OF THE PROJECT

4

Introduction of HVDC system

Reasons for selection

- Futuristic approach

- Long lengths & bulk powers

- Interconnection of unsynchronized

systems

Introduction &

fundamentals



Case Study:Overview

TransmissionSchemes

Cost analysis


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A.C SupplyFundamentals

AC Current

AC Impedance

Frequency

AC Voltage

AC Power & Losses

AC Supply FundamentalsIntroduction &

fundamentals



Case Study:Overview

TransmissionSchemes

Cost analysis


5
http://c/Documents%20and%20Settings/ShaziaSaleem/Desktop/Final%20Syndicate%20Presentation/How%20generator%20works%20by%20Khurram%20Tanvir.flv


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DC Supply FundamentalsIntroduction &

fundamentals



Case Study:Overview

TransmissionSchemes

Cost analysis


6

DC Voltage

DC Current

DC Resistance

Frequency

DC Power & Losses

O i f P S t
http://c/Documents%20and%20Settings/ShaziaSaleem/Desktop/Final%20Syndicate%20Presentation/How%20generator%20works%20by%20Khurram%20Tanvir.flv


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Overview of Power SystemComponents With A.C

POWER STATION-Generator output

at 11kV/20kV is stepped up bytransformer to 132kV 275kV and 500kVfor transmission.

HEAVY INDUSTRY - Some havedirect connections to the transmission at132kV

TRANSMISSION - Transmission is mainly at132kV, 275kV and 500kV

SMALL INDUSTRY -Most small factories receivetheir electricity at 11kV

HOUSE - Overhead distributionto individual houses is at 240V.

AROUND TOWN &RESIDENTIAL AREA -Underground distribution toindividual premises is at

415V and 240 V

Introduction &

fundamentals



Case Study:Overview

TransmissionSchemes

Cost analysis


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D.C SupplyFundamentals

Componentsof

HVDC

Generator

Converters/Invertors

Transmission

Filters & Reactors

Transformation

Automation

System


HVDC system

components


Case Study:Overview

TransmissionSchemes

Cost analysis


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Generator

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HVDC system

components


Case Study:Overview

TransmissionSchemes

Cost analysis


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HVDC Transformer

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HVDC system

components


Case Study:Overview

TransmissionSchemes

Cost analysis


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C t / I t


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Convertors / Invertors

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HVDC system

components


Case Study:Overview

TransmissionSchemes

Cost analysis


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Transmission (Cable)

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HVDC system

components


Case Study:Overview

TransmissionSchemes

Cost analysis


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O


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Transmission (O/H Line)

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HVDC system

components


Case Study:Overview

TransmissionSchemes

Cost analysis


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Fil & R


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Filters & Reactors

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D.C SupplyFundamentalsFILTER

REACTOR


HVDC system

components


Case Study:Overview

TransmissionSchemes

Cost analysis


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Block Diagram of HVDC

15

Rectifier Station Inverter Station

resistance

ACsignal

ACsignal

VR

Vi

Id

Filter Filter

Introduction

Applications

History

AC versus DC

Cost Structure

Block Diagram



HVDC schemes

& history

Case Study:Overview

TransmissionSchemes

Cost analysis


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M l S h f HVDC


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Monopole Scheme of HVDC

16

Introduction

Applications

History

AC versus DC

Cost Structure

Block Diagram



HVDC schemes

& history

Case Study:Overview

TransmissionSchemes

Cost analysis


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Bi l S h f HVDC


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Bipolar Scheme of HVDC

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Introduction

Applications

History

AC versus DC

Cost Structure

Block Diagram



HVDC schemes

& history

Case Study:Overview

TransmissionSchemes

Cost analysis


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B k t B k S h f HVDC


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Back to Back Scheme of HVDC

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Introduction

Applications

History

AC versus DC

Cost Structure

Block Diagram



HVDC schemes

& history

Case Study:Overview

TransmissionSchemes

Cost analysis


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HVDC Substation


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HVDC Substation

19





HVDC schemes

& history

Case Study:Overview

TransmissionSchemes

Cost analysis


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TYPICAL HVDC APPLICATIONS


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Introduction

Applications

TYPICAL HVDC APPLICATIONS

Systems with different frequencies

Power over long undersea cable

Point-to-point long distance transmission



HVDC schemes

& history

Case Study:Overview

TransmissionSchemes

Cost analysis


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History of HVDC


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History of HVDCIntroduction

Applications

History

1940s Studied in Germany

1954s First Commercial Application in Sweden

- Submarine Link b/w mainland &Gotland

island

- 100KV

- 20MW- 90KM

1970s Introduction of tryristors

- 600KV

- 3000MV

Today - Dominating Technology

- Long distance transmission of bulk power



HVDC schemes

& history

Case Study:Overview

TransmissionSchemes

Cost analysis


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Case Study Introduction &fundamentals



Case Study:Overview

TransmissionSchemes

Cost analysis


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HVDC Projects under Consideration


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HVDC Projects under Consideration

in Pakistan

Import of power from :

Coastal & Thar Area.

Tajikistan (CASA).

Northern Areas.

Iran




Case Study:Overview

TransmissionSchemes

Cost analysis


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Bird Eye View of the Project Area


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Bird Eye View of the Project Area

QuettaCityZahedan

City

PakistanIran

Border

ZahedanCity To

PakistanBorder

(93 KM)

Quetta

To

Iran Border

(585 KM)

Break Even Distance of AC & DC


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Break Even Distance of AC & DC

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The plot of the transmission distances versus cost for both

HVDC and HVAC.

Break Even Distance




Case Study:Overview

TransmissionSchemes

Cost analysis


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Cost Break-up of Converter Station


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Cost Break-up of Converter Station

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Case Study:Overview

TransmissionSchemes

Cost analysis


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Cost Comparison of Substation


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Cost Comparison of Substation

0

50

100

150

200

250

300

350

400

HVAC HVDC

Sub/Converter

Substation




Case Study:Overview

TransmissionSchemes

Cost analysis


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Cost Structure contd


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Case Study:Overview

TransmissionSchemes

Cost analysis


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Recommendations


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Recommendations

500 KV HVDC Bipolar Option

is Recommended

for cross-border inter

connection between Iran and

Pakistan.

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HVDC system

components


Case Study:

Overview

TransmissionSchemes

Cost analysis

Impact &

Implementation

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