hvdc & factshvdc & facts conference -...

HVDC & FACTSHVDC & FACTS Conference

A t 30 & 31 2011August 30 & 31, 2011

Selected EPRI HVDC 2011 Projects

Part I – HVDC Handbook Cost Estimates Chapter 20P t II Lif E t i St d f Okl i HVDCPart II – Life Extension Study for Oklaunion HVDC Converter Station

Part IPart ICOST ESTIMATIONCOST ESTIMATION

CHAPTER 20 CHAPTER 20 HVDC HANDBOOKHVDC HANDBOOKCHAPTER 20 CHAPTER 20 –– HVDC HANDBOOKHVDC HANDBOOK

Dr. Ram Adapa Dr. Ram Adapa -- Electric Power Research Institute, Ruth Johnson Electric Power Research Institute, Ruth Johnson --High Energy Inc & Gene Wolf High Energy Inc & Gene Wolf Lone Lone Wolf Engineering LLCWolf Engineering LLCHigh Energy Inc, & Gene Wolf High Energy Inc, & Gene Wolf -- Lone Lone Wolf Engineering, LLCWolf Engineering, LLC

Courtesy of ABB

So Why HVDC

Courtesy of Alstom Grid

Courtesy of ABB

Typical HVDC Equipment Cost Breakdown

Courtesy of ABB

FOUR PHASES:PHASES OF COST ESTIMATESPHASES OF COST ESTIMATES

Feasibility

• Manufacturer Unknown

• Project Scope Roughly Defined• Project Scope Roughly Defined

• Estimates Very Rough & Incomplete

Commitment

• Manufacturers Identified

• Preliminary Budget Defined

• Project Schedule Completed

Evaluation

• Specification Developed

• Bid Package Out to ManufacturersBid Package Out to Manufacturers

• Contract Awarded

Implementation

• Fine Tune Estimates as Project Progresses

• Controlling Costs

EPRI EPRI 2011 2011 HVDC CONFERENCEHVDC CONFERENCESelected EPRI HVDC 2011 ProjectsSelected EPRI HVDC 2011 Projects

Part IIPart IILIFE LIFE EXTENSION EXTENSION Study For OKLAUNION Study For OKLAUNION LIFE LIFE EXTENSION EXTENSION Study For OKLAUNION Study For OKLAUNION

HVDC CONVERTER STATIONSHVDC CONVERTER STATIONS

Dr Ram Adapa Dr Ram Adapa -- Electric Power Research Institute Ruth Johnson Electric Power Research Institute Ruth Johnson --Dr. Ram Adapa Dr. Ram Adapa -- Electric Power Research Institute, Ruth Johnson Electric Power Research Institute, Ruth Johnson --High Energy Inc , Ben Mehraban High Energy Inc , Ben Mehraban -- American Electric Power, Les American Electric Power, Les Recksiedler Recksiedler -- Manitoba HVDC Research Centre, and Gene Wolf Manitoba HVDC Research Centre, and Gene Wolf -- Lone Lone Wolf Engineering, LLCWolf Engineering, LLC

Oklaunion HVDC Converter Station200MW Back-to-Back

SYSTEMS INVESTIGATEDYARD EQUIPMENT:345 kV Harmonic Filter Banks

C fConverter Transformers

345 kV Oil Filled Reactor Bank

Ancillary Systems

Balance of Plant

CONVERTER EQUIPMENT:Control System

Cooling System

Valve Hall Equipment

Balance of PlantBalance of Plant

GENERAL OBSERVATIONSGENERAL OBSERVATIONS

MOST IMPORTANT ISSUESMOST IMPORTANT ISSUESCONTROL SYSTEMCONTROL SYSTEM1.1. Aging Aging 1.1. Aging Aging 2.2. Intermittent failure modesIntermittent failure modes3.3. Difficult and costly to maintainDifficult and costly to maintainyy4.4. Subjects station to potential Subjects station to potential

unscheduled outagesunscheduled outages5.5. Lack of vendor support Lack of vendor support 6.6. Lack of spare partsLack of spare parts7.7. Replace SystemReplace System

CONCLUSIONCONCLUSIONCONCLUSIONCONCLUSION

““TheThe resultsresults ofof thethe investigationinvestigationTheThe resultsresults ofof thethe investigationinvestigationindicateindicate itit isis moremore costcost effectiveeffective totoextendextend thethe lifelife ofof thethe OklaunionOklaunionHVDCHVDC C tC t St tiSt ti bbHVDCHVDC ConverterConverter StationStation bybyreplacingreplacing majormajor componentscomponents andandsystemssystems asas theythey reachreach thethe endend ofofyy yytheirtheir respectiverespective lifetimeslifetimes ratherratherthanthan installinginstalling aa completecomplete newnew dcdclinklink ofof thethe samesame ratingrating ””linklink ofof thethe samesame ratingrating..

Questions?Questions?