DC Optimal Power Flow Proxy Limits

TitleDC Optimal Power Flow Proxy Limits
Publication TypeConference Paper
Year of Publication2010
AuthorsBernard C Lesieutre, Michael Schlindwein, Edward E Beglin
Conference Name43rd Hawaii International Conference on System Sciences
Date Published01/2010
Conference LocationHonolulu, Hawaii, USA
ISBN Number978-1-4244-5509-6
Keywordselectricity markets, load flow, power system management, reliability and markets, RM07-003

Proxy limits are used to represent voltage constraints from an AC power flow as line flow constraints in a DC power flow. When a DC power flow is used to settle markets, the use of proxy limits can introduce errors in LMPs, dispatch, or both. This paper describes a method to obtain the optimal set of proxy limits for known voltage constraints. We discuss the general properties of these proxy limits.