Timeline for Torque production in PMSM
Current License: CC BY-SA 4.0
13 events
| when toggle format | what | by | license | comment | |
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| Jun 8, 2020 at 6:31 | vote | accept | Steradiant | ||
| Jun 8, 2020 at 6:31 | history | bounty ended | Steradiant | ||
| Jun 4, 2020 at 5:02 | comment | added | Rick Sanchez | hope this courses.lumenlearning.com/physics/chapter/… satisfies your curiosity about sine of the angle in torque equation. The more complex torque equation like synchronous machine torque are trickier to derive by bottom up approach using lorentz force. They can be derived easily by calculating the rate of change of store magnetic energy is the air gap of machine. This paper here people.ucalgary.ca/~aknigh/electrical_machines/fundamentals/… this beautifully. | |
| Jun 4, 2020 at 4:33 | history | edited | Rick Sanchez | CC BY-SA 4.0 |
Added links to images used. Open to any other advice or content addition.
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| Jun 4, 2020 at 4:28 | history | edited | Rick Sanchez | CC BY-SA 4.0 |
Added links to images used. Open to any other advice or content addition.
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| Jun 3, 2020 at 8:28 | comment | added | Steradiant | Yes but if I e.g. apply Ampere's law to my picture for a few degree around the 0 point (horizontal axis) I'd get \$2Hg=0\$ if I assume equal airgap length \$g\$ and infinitely high permeability of the iron core. If I'd apply it to a closed loop which also encloses a conductor I'd get \$2Hg=I\$ | |
| Jun 3, 2020 at 8:19 | comment | added | Rick Sanchez | Ampere's law says ∮B⋅dl=μ.Ienc=0 around the closed loop. It doesn't say B=0 for all points on the loop. Note that the value of an integral does not uniquely determine the integrand. And your doubt is based on such an assumption. | |
| S Jun 3, 2020 at 8:04 | history | edited | Rick Sanchez | CC BY-SA 4.0 |
Modified equation for readability
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| S Jun 3, 2020 at 8:04 | history | suggested | Steradiant | CC BY-SA 4.0 |
Modified equation for readability
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| Jun 3, 2020 at 7:07 | comment | added | Steradiant | Thanks for the contribution. 'Pure' Ampere's law doesn't say a word that you 'have to' include conductors. But okay, I buy it that the reference is arbitrarily chosen. I also know this equation for torque calculation but I've never sawn a derivation of this equation which fitted to the presented diagrams. I should have stated that I'm more specifically looking also for a derivation of this equation. | |
| Jun 3, 2020 at 7:01 | review | Suggested edits | |||
| S Jun 3, 2020 at 8:04 | |||||
| Jun 3, 2020 at 6:54 | history | edited | Rick Sanchez | CC BY-SA 4.0 |
added 194 characters in body
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| Jun 3, 2020 at 6:46 | history | answered | Rick Sanchez | CC BY-SA 4.0 |