What would you like to do?
Converting D/C into A/C is very expensive. You can use inverters to switch the direction of the current but you would probably be better off to replace your DC generator with …an AC generator and if you need both AC and DC power then use a rectifier (inexpensive when compared to inverters) to convert the AC to a DC current.
In an electrical engineering textbook you would probably find 1-2 chapters on ac motors and another on ac generators. The theory explains how these devices work exactly, a…nd gives methods for designing them from nothing, so the theory would tell you from basic physical principles how to optimise a design, i.e. how to get the best performance from it at the minimum cost in terms of mass and the cost of raw materials.
In construction wise both dc motor& dc generator is same.if the mechanical energy is applied as input to the dc motor means,it will run as a GENERATOR.
Such conversions are often inefficient and/or expensive. It requires an external power supply or battery charger to convert AC into DC.
Yes. An AC generator and an AC motor are functionally very similar. I would not recommend using a permanent magnet type, since you cannot easily control the output. You want a…n induction motor to start with. This motor takes some power to create an electromagnet out of the rotor (the rotating part), and some power flows through the stator (the non moving part). The magnetic field produced by the current flowing through the stator and rotor oppose each other, causing the motor to turn. The more power that is pushed through the stator and rotor, the more power the motor has to turn. A generator on the other hand usually has both electrical and kinetic power applied to the rotor. The electric power creates the electromagnet, and the kinetic power turns the rotor. As the rotor turns, a voltage is induced in the stator winding, which causes "back emf", which you can think of as pushing against the current in the rotor until an equilibrium is reached (the back emf reduces the rotor voltage to some degree as load is added/removed from the stator). As you increase the rotor voltage, higher induced voltages result on the stator, which causes more back emf, which slows the generator down (assuming load is on the stator) unless more kinetic energy is supplied. In a typical generator, this slow down is prevented by the governor, which controls the amount of kinetic energy applied to the rotor. the automatic voltage regulator (AVR) is used to control the voltage to the rotor. With this in mind, to change an ac induction motor to a generator you need a source of kinetic energy, and you need to figure a way to supply a (controllable) DC voltage to the rotor. If you need variable power output (...you will, due to start up if nothing else), you need to create some sort of automatic/manual voltage control to the rotor. Also, you need some sort of governor to keep the motor turning at the right RPM's. There are many more considerations, but this should get you started.
you can simply convert dc to ac by rectification method. This is done by assembling electronics components; such as; diodes(4), transistor n resistors.
The easiest way would be to convert the AC power to DC by using a rectifier diode and a filter capacitor. In that way you can now run your DC motor on DC.
the quick answer is you cant. squirrel cage induction motors need AC power to generate the magnetic field in the rotor...if however you have a motor that has brushes in it (dr…ills, mixers,etc) then this motor can be run off ac or dc..the commutator brushes do the work of moving the current to the proper coils at the proper time.
all the electrical machines can be run either as a motor or as a generator. but dc machines, A motor can be run as generator and vice versa with little modification
An ac motor cannot generate electricity but its shaft can be coupled to that of certain devices like an alternator to in order to generate electricity.
The method used in cars is to have a 3-phase generator or alternator which is turned by the engine. Six diodes in a full-wave rectifier connect the alternator directly to …the car's battery.
It should be able to but I cannot say how efficient it would be. One would likely need to remove the electronics and have direct connections for the field windings and the rot…or. Without rewinding the alternator, it would need to be fed with three phase AC power to the stator and DC to the rotor. Connected as described above, would result in a synchronous motor rather than an induction motor. If the rotor connections were shorted together the motor could possibly function as an induction motor.
At the output install a full wave bridge and filter the output to get a desired amount of ripple. Then add circuitry to create the desired DC voltage. Or just buy a AC to DC c…onverter or variable DC power supply that has an AC power input.
Turn the shaft A permanent magnet motor can generate a voltage when you turn it's "drive" shaft. There is little to actually to distinguish a permanent magnet motor from that …of a permanent magnet generator. However, it it is direct current motor its possible to generate a reasonably constant voltage. If you have a Alternating Current motor the resulting output should be an alternating voltage. Note: These Im afraid are likely to be quite small, low power types of motor.
The two are different machines, but you can connect diodes on the output of an ac generator to produce dc, that's what happens in alternators for cars. A car alt…ernator is a 3-phase ac generator, and you have six diodes. From each of the three phase outlets you have one diode to the positive rail and one to the negative.