Why does Permanent Magnet Synchronous Motor (PMSM) equation in MathWorks documentation doesn't match the equations elsewhere?

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PMSM equation according to the MathWorks document doesn't match the equation elsewhere. According to the books the evaluation for electromagnetic torque should be:         
Te = 1.5*PM.p/2*(PM.Flux*u(1)+(PM.Ld-PM.Lq)*u(1)*u(2))
However, according to MathWorks document:
 Te=1.5p[λiq+(LdLq)idiq]
Why is the "/2" been omitted in the MathWorks equation for PMSM?

Accepted Answer

MathWorks Support Team
MathWorks Support Team on 18 Jan 2024
Edited: MathWorks Support Team on 29 Feb 2024 at 12:51
In the equation provided, the term 'p' is number of poles. However, while modeling a PMSM in Simulink, 'p' is considered as number of pole pairs. Hence the "/2" term is omitted.
Te=1.5p[λiq+(LdLq)idiq]
For more information, please run the below command in the MATLAB R2018b command window to refer to the documentation:
web(fullfile(docroot, 'physmod/sps/powersys/ref/permanentmagnetsynchronousmachine.html'))
Please follow the below link to search for the required information regarding the current release:

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