So lets see about your stepper motor power.
you got a "real" resistance of the winding. And your steppermotor driver is set to a real physical current limit.
At standstill of your motor, by the given current, lets say the current is at 1.6A, you get a voltage drop over the motor winding of 4V. So the real power is everytime 4*1.6 = 6.4W
On a little 42mm nema17 motor this is in fact the heating power you can get into the housing without burning the motor down.
Because the constant current regulation of the driver you will never get 4times or 6 times the real effective power into the motor, because it will meltdown within minutes.
So it is for standstill even not a thing how high the power supply voltage of your motor driver is. You will get the same results at the motor windings, as long as the supply power is about the nominal motor voltage and additional 2 oder 3 volts on top for the electronics or even higher.
The inductance of the winding will smooth out the pwm in the motor current flow partial.
It changes a bit if your motor rotates, and you geht induction voltages against the driver voltage. But the induction voltage does not add to effective power (wirkleistung), it lowers the driver voltage virtually at the same amount, so you need to increase the driver voltage at the electrical motor winding terminals to get the same current as before. If you would measure the resulting voltage and multiply it with the motor current, you got the apparent power S (Scheinleistung).
Its the same as on 3 phase induction motor, but on current regulated devices the voltage is not the real voltage, and on 3 phase induction the voltage is real, but the current makes you crazy with the power factor.
If your physical resistence of the copper winding does not change, nor the current limit on the driver changes, the real effective electrical power doesnt change too.
So with this knowledge you need to rethink your torque assumptions on higher supply voltages at motor driver electronics.
you got a "real" resistance of the winding. And your steppermotor driver is set to a real physical current limit.
At standstill of your motor, by the given current, lets say the current is at 1.6A, you get a voltage drop over the motor winding of 4V. So the real power is everytime 4*1.6 = 6.4W
On a little 42mm nema17 motor this is in fact the heating power you can get into the housing without burning the motor down.
Because the constant current regulation of the driver you will never get 4times or 6 times the real effective power into the motor, because it will meltdown within minutes.
So it is for standstill even not a thing how high the power supply voltage of your motor driver is. You will get the same results at the motor windings, as long as the supply power is about the nominal motor voltage and additional 2 oder 3 volts on top for the electronics or even higher.
The inductance of the winding will smooth out the pwm in the motor current flow partial.
It changes a bit if your motor rotates, and you geht induction voltages against the driver voltage. But the induction voltage does not add to effective power (wirkleistung), it lowers the driver voltage virtually at the same amount, so you need to increase the driver voltage at the electrical motor winding terminals to get the same current as before. If you would measure the resulting voltage and multiply it with the motor current, you got the apparent power S (Scheinleistung).
Its the same as on 3 phase induction motor, but on current regulated devices the voltage is not the real voltage, and on 3 phase induction the voltage is real, but the current makes you crazy with the power factor.
If your physical resistence of the copper winding does not change, nor the current limit on the driver changes, the real effective electrical power doesnt change too.
So with this knowledge you need to rethink your torque assumptions on higher supply voltages at motor driver electronics.