Modeling of Combined Heat and Power Plants as Flex-offers
Author
Freiberger, Philipp Daniel
Term
4. term
Education
Publication year
2017
Submitted on
2017-09-26
Pages
16
Abstract
Når en større del af elektriciteten kommer fra svingende vedvarende energikilder, opstår nye krav til hurtige, styrbare kilder for at holde elmarkedet i balance. Kraftvarmeværker (CHP) er meget effektive og kan regulere relativt hurtigt. Dette arbejde undersøger, hvordan elproduktionen kan gøres mere fleksibel ved hjælp af flex-tilbud (flex-offers). I dag afgiver CHP-operatører bud til day-ahead-markedet med fast varighed og fast produktionskapacitet. Disse bud er statiske, og vi udvider derfor flex-offer-begrebet med varighedsfleksibilitet, så bud kan dække forskellige driftstider, der passer bedre til kraftvarmeværkers drift. En eksperimentel evaluering viser, at der er mulighed for at handle med sådanne fleksible ordrer (flexi orders).
As more electricity comes from variable renewable energy sources, the system needs fast, controllable sources to keep the power market in balance. Combined heat and power (CHP) plants are highly efficient and can adjust output relatively quickly. This work explores how to make electricity production more flexible using flex-offers. Today, CHP operators submit day-ahead market bids with fixed duration and fixed production capacity. These bids are static, so we extend the flex-offer concept with duration flexibility, allowing bids to cover different operating times that better fit CHP plants. An experimental evaluation shows that there is an opportunity to trade with such flexible orders (flexi orders).
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