Home » railML newsgroups » railml.rollingstock » change of attributes: cos phi -> phase displacement angle
change of attributes: cos phi -> phase displacement angle [message #1188] Wed, 02 September 2009 07:34
Joerg von Lingen is currently offline  Joerg von Lingen
Messages: 59
Registered: May 2011
Member
Hi,

I have received the request to change any occurance of "cos phi" (phase angle) in rollingstock to
just the angle "phi" itself. The expression with cosinus does only allow the coverage of two
quadrants, which may not be sufficient for modern power electronics. The use of "phi" instead will
allow to clearly identify one of the four possible quadrants of the phase angle.

The possible values shall be -180 ... +180 instead of 0..1.

--
Mit freundlichen Grüßen/Best regards,
-------------------------------------
Jörg von Lingen
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