The Qg value in column 3 of the gen matrix has no effect since it is simply an output quantity. The Q limits are always enforced by the OPF, but they are ignored for the power flow unless the ENFORCE_Q_LIMS option is set to true. See the bottom of page 10 in the latest manual (http://www.pserc.cornell.edu/matpower/manual.pdf) for a description of how this is handled.

--
Ray Zimmerman
Senior Research Associate
428-B Phillips Hall, Cornell University, Ithaca, NY 14853
phone: (607) 255-9645


On Mar 26, 2007, at 1:01 PM, [email protected] wrote:
Another generator input question, if the generator is connected to the reference bus, do altering the Q values for the generator effect anything because in mine i have limits set the to certain values but i seem to be hitting these limits!

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