A Methodology to Analyze the Impact of 30-Minute Wind Scheduling on Load-Following Requirements

Conference · Wed Dec 24 00:00:00 EST 2014

DOI:https://doi.org/10.1109/SusTech.2014.7046224· OSTI ID:1171897

Diao, Ruisheng; Makarov, Yuri V.; Samaan, Nader A.; Kujala, Ben

This paper proposes a new and systematic approach to investigating the impact of wind transfer between balancing authorities (BAs) with half-hour scheduling on load following requirements, which was traditionally scheduled on an hourly basis. The analysis is conducted for a few BAs in the Pacific Northwest of the U.S. that are described as source BAs (sending renewables) and sink BAs (receiving renewables). The main hypothesis is that if the source BA could schedule interchange for wind on a half-hourly basis, it would make the schedule follow its net load more closely. The scheduling change in the source BA is matched by adding the corresponding component to the net load in the sink BA. The load-following requirements are calculated as: (a) by the difference between the net load and modified schedule in the source BA, and (b) the difference between modified net load and unchanged hourly schedule in the sink BA. Results are presented as hourly upward and downward load following requirements in the source and sink BA, and compared with the results obtained with all generators scheduled on an hourly basis. Thus, the proposed method can effectively help utilities better understand the impact of 30-minute scheduling and make better business decisions.

• Research Organization: Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 1171897
• Report Number(s): PNNL-SA-100027; 600306000
• Resource Relation: Conference: Proceedings of the 2nd IEEE Conference on Technologies for Sustainability (SusTech), July 24-26, 2015, Portland, Oregon, 86-90
• Country of Publication: United States
• Language: English