Timeline for Can a BLDC motor be actively retarded (braked) by decreasing the electrical drive frequency?
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| Mar 22, 2023 at 4:34 | answer | added | Kuba hasn't forgotten Monica | timeline score: 2 | |
| Mar 21, 2023 at 8:48 | history | became hot network question | |||
| Mar 21, 2023 at 8:04 | comment | added | TooTea | To get any sort of accuracy,you will need closed loop control. Given the inertia involved,you will have to slow down long before reaching the target position and only do the last bit very very slowly. Active braking can generate a greater braking torque than just shorting the windings,but both are limited by what maximum torque (current) the motor can survive without something breaking or the windings overheating,so make sure you take those limits into account. | |
| Mar 21, 2023 at 7:17 | comment | added | greybeard | The motor will be sourcing power during braking: your hardware needs to operate four quadrants instead of just two. (With a power factor < 1, it does so on a (half-)cycle by cycle basis - the energy from braking may be several orders of magnitude greater, especially in vehicles moving downslope.) | |
| Mar 21, 2023 at 6:38 | history | edited | JRE | CC BY-SA 4.0 |
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| Mar 21, 2023 at 1:07 | answer | added | Jasen Слава Україні | timeline score: 5 | |
| S Mar 21, 2023 at 0:48 | review | First questions | |||
| Mar 21, 2023 at 2:47 | |||||
| S Mar 21, 2023 at 0:48 | history | asked | Ant Williams | CC BY-SA 4.0 |