http://www.pserc.cornell.edu/matpower/manual.pdf
Page 24, “By default, the AC power flow solvers simply solve the problem described above, ignoring any generator limits, branch flow limits, voltage magnitude limits, etc. How- ever, there is an option (ENFORCE Q LIMS) that allows for the generator reactive power limits to be respected at the expense of the voltage setpoint. This is done in a rather brute force fashion by adding an outer loop around the AC power flow solution.” From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Saturday, February 25, 2012 2:14 AM To: MATPOWER discussion forum Subject: 回复： Q limit tolerance for "ENFORCE_Q_LIMS" mpoption The Matpowe do not take Q limit into consideration when using "runpf", the "runopf" does. Good Luck _____ 发件人： Hongxing Ye <[email protected]> 收件人： [email protected] 发送日期： 2012年2月25日, 星期六, 下午 2:32 主题: Q limit tolerance for "ENFORCE_Q_LIMS" mpoption To whom it may concern, In line 149 & 150 of ‘runpf.m’ in version 3.2 or line 218 & 219 in version 4.0, there’s no tolerance for the reactive power limit for generator. Sometimes it may lead to infeasible problem, especially when incorporated with other packages. I just encountered it and report it. Thanks a lot for this great Matlab package. Best regards! Ye Hongxing Ph.D student ECE Dept., Illinois Institute of Technology
