Is the abc_to_dq0 Transformation correctly defined in SimPowerSystems?
1 次查看(过去 30 天)
显示 更早的评论
In the abc_to_dq0 Transformation block, the direct axis value is obtained from a scaled combination of the sin values of the phase variable. And q from a scaled combination of cos values.
In other definitions (Wikipedia, Mohan), the d axis is obtained from a scaled combination of cosines and the q from a scaled combination of -sines. Also Park's definition uses this.
Is this Matlab definition a mistake, which references itself as the Park transformation, but it's not? Could someone please confirm this or show me where I could find more information on this if it is correct.
Thanks in advance.
0 个评论
回答(1 个)
Joel Van Sickel
2020-12-11
It is correct, howerver, there are mutliple standards for reference frames which can cause confusion. (such as a 90 degree offset for some)
2 个评论
Joel Van Sickel
2020-12-11
Actually, we've started giving options to change the assumptions to support different standards.
The current block allows it to be poewr invariant and choose the axis alignment: https://www.mathworks.com/help/physmod/sps/ref/parktransform.html
Previously, this has caused issues for a number of people since the assumptions were not clear or consistent in our products, so we are working to address that.
另请参阅
类别
在 Help Center 和 File Exchange 中查找有关 Nonlinear Operators 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!