Security of electric supply 2009

Security of electric supply 2009 - Security of electric...

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Power Generation 1 © Siemens Power Generation 2003. All Rights Reserved 2/19/2009 Security of electric supply Torsten Strand, Heat&Power, KTH, Stockholm [email protected]
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Power Generation 2 © Siemens Power Generation 2003. All Rights Reserved Why this boring lecture? z The prim value for a power plant (or any equipment) owner is availability z One often says that a product must fulfill 7 point, important to the customer. For a component in the power generation and distribution system they are z availability z availability z availability z maintainability z adaptability z efficiency z price 2/19/2009
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Power Generation 3 © Siemens Power Generation 2003. All Rights Reserved Why is availability so important z Unavailability means risks and negative reputation: z personal safety, economical to the society, economical for the equipment owner z loss of customers z For the owner the life cycle profit drops z Profit = (income from sold power - fuel cost) - capital cost - operation cost z Income from sold power = power output* theoretical hrs*availability z Wherever you work, somebody (hopefully) will as you what you have done to assure availability and about your contingency plans! z You then can tell them that you have done your homework! Here are some clues! z First of all you will of course try to avoid to get into problems by understanding your own or your customer’s situation. 2/19/2009
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Power Generation 4 © Siemens Power Generation 2003. All Rights Reserved 2/19/2009 Content z In this lecture the issues regarding secure electric supply will be discussed mainly in the context of a gas turbine plant z The overall view on fuel supply, electricity production and distribution z Basic reliability/availability considerations z Redundancy z Theoretical analysis of availability, FMEA z Design for high reliability and availability z Operation and control system reliability z Supervision z Service and maintenance concepts
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