DocumentCode :
2378271
Title :
Unit commitment considering generation flexibility and environmental constraints
Author :
Lu, Shuai ; Makarov, Yuri V. ; Zhu, Yunhua ; Lu, Ning ; Kumar, Nirupama Prakash ; Chakrabarti, Bhujanga B.
Author_Institution :
Pacific Northwest Nat. Lab., Richland, WA, USA
fYear :
2010
fDate :
25-29 July 2010
Firstpage :
1
Lastpage :
11
Abstract :
This paper proposes a new framework for the power system unit commitment process, incorporating generation flexibility requirements and environmental constraints into the existing unit commitment algorithm. The generation flexibility requirements are to address the uncertainty and variability associated with large amounts of intermittent resources as well as with load, which cause real-time balancing requirements to be variable and less predictable. The proposed flexibility requirements include capacity, ramp-rate and energy (or ramp duration) for both upward and downward balancing reserves. The environmental constraints include emission limits for fossil fuel-fired generators and ecological regulations for hydro power plants. The calculation of emission rates is formulated. Unit commitment under this new framework will be critical to the economic and reliable operation of the power grid and the minimization of its negative environmental impacts, especially when high penetration levels of intermittent resources are being approached, as required by the renewable portfolio standards in many states.
Keywords :
environmental factors; hydroelectric power stations; power generation dispatch; power generation scheduling; steam power stations; downward balancing; ecological regulations; environmental constraints; fossil fuel-fired generators; generation flexibility requirements; hydro power plants; intermittent resources; power grid; power system unit commitment process; ramp-rate; renewable portfolio standards; unit commitment; upward balancing; Unit commitment; emission rate; environmental constraints; generation flexibility; hydro generation; renewable; wind generation;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Power and Energy Society General Meeting, 2010 IEEE
Conference_Location :
Minneapolis, MN
ISSN :
1944-9925
Print_ISBN :
978-1-4244-6549-1
Electronic_ISBN :
1944-9925
Type :
conf
DOI :
10.1109/PES.2010.5589501
Filename :
5589501
Link To Document :
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