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.

%B 43rd Hawaii International Conference on System Sciences %I IEEE %C Honolulu, Hawaii, USA %P 1 - 6 %8 01/2010 %@ 978-1-4244-5509-6 %R 10.1109/HICSS.2010.130