It is my first real go with this forum. I hope to get answers to some of my questions, since electric and electronic control is not my main area. I mean, I have a fair idea of what is going on in most control circuits. I know what PWM is, current and voltage and watts.
Now, imagine you have a brushless dc motor which you want to control the speed and acceleration of in one direction. The reason for the brushless dc motor is, that this motor exist. The alternative, a 3 phase induction motor with permanent magnets, in the design I like, yet have to be invented. Besides, I have learned that vfd is a heavy mustard that needs a lot of cooling, so why not stick with the dc?
Ogre say this motor is rated at “x” kW, at 3600 rpm at 48 volts. If one takes a PWM amplifier and starts playing with the 48 volts, that would be big news, right. I assume that’s exactly how most modern forklifts work. So, is this the most efficient way to control speed and torque of a dc motor?
What will happen if I gave this motor 100 volts or even 300 volts for a limited time?
Would it be possible to create a controler that controls current as well as voltage? Thinking that volts multiplied with current equals force.
I have to admit I know too little. I’m thinking to use this electric motor for a vehicle. So far a motor of 17kW is available and that’s a bit less than what I would like to see. On the other hand, the outside dimensions suit me very fine, so why not try and chock the life out of it, since its not for an industrial application and reliability is not defined at the moment.
Give me any input you may think I need. I really need to learn of the possibilities of electricity.