The working principle of the rotor in the generator, what is the function of the rotor of the genera

After the spiral coil is passed through direct current, it will form the N pole and the S pole at both ends of the coil. In fact, the generator rotor uses this principle to make an electromagnet with a magnetic core, and adjusts the magnetic field strength by adjusting the size of the excitation current, so as to achieve the purpose of adjusting the output voltage of the generator. In small generators or hydro-generators with a relatively low rotational speed, you can see the magnetic poles that are wound around the coils, that is, the magnetic claws.

In the large turbine generator, the magnetic pole is not visible, but there is a coil groove along the rotor axis, the coil is embedded in the groove, and then the groove is sealed with a groove wedge to prevent the coil from being damaged due to centrifugal force during high-speed operation.

The function of the rotor of a generator is to generate a magnetic field. The rotating part of the rotor generator is mainly composed of a conductive rotor winding, a magnetically conductive core, a rotor shaft extension, a retaining ring, a central ring and a fan.

The generator rotor can be divided into two modes, one is pivot type and the other is pivot type.

1. Pivot type: the magnetic pole is placed on the stator, three symmetrical armature windings are installed on the rotor, the stator magnetic field is cut when the rotor rotates, the three-phase electric potential is induced in the rotor, and the three-phase alternating current is drawn out with three slip rings; In this way, the power of the generator cannot be increased, and it is only used in the early small generators.

2. Rotating pole type: the stator is installed with three symmetrical windings, the rotor is installed with magnetic poles and excitation windings, and two slip rings are used to pass DC excitation current into the rotor excitation winding to produce a constant magnetic field, when the rotor rotates, the magnetic field of the rotor also rotates, the rotor magnetic field of this rotation cuts the stator three symmetrical windings, and induces three symmetrical potentials in the stator three-phase windings, and the output of this electric potential is three-phase alternating current, because it is output from the stator, there is no moving part, so the power can be done very much, and it has been widely used.

Photo by Li Yuanli) @2019

The rotary engine directly converts the combustion-expansion force of the combustible gas into driving torque. Compared to reciprocating engines, rotary engines eliminate useless linear motion, so that rotary engines of the same power are smaller in size, lighter in weight, and have lower vibration and noise, which has great advantages.

The general engine is a reciprocating engine, the piston does reciprocating linear motion in the cylinder when working, in order to convert the linear motion of the piston into rotary motion, the crank slider mechanism must be used.

A generator is a device that uses power to convert mechanical energy into electrical energy. And in the alternator, the generator is a very important part of it. Its function is mainly to convert electrical energy from mechanical energy to electrical energy, so that the alternator can work normally.

The rotor of the generator converts the rotating magnetic field, which promotes the generation of alternating current generated by the change in magnetic flux. When an electric current is passed through the coils of the rotor, a rotating magnetic field is formed in the rotor. Through this magnetic field, the rotor rotates, and at the same time, the movement of the conductor coils on the rotor generates an induced electric potential, which converts electrical energy into kinetic energy.

In addition, the generator rotor can also form electromagnetic induction together with the stator, so that the electrical energy is converted into mechanical energy through the mutual induction between the coils, and drives the generator to output electrical energy. Therefore, in the field of power industry and engineering, the role and importance of generator rotors are irreplaceable.

In summary, the role of the generator rotor is to convert mechanical energy into a form of electrical energy, so that it can act as the central part of the alternator to achieve the output of electrical energy. At the same time, it is also an important part of the realization of electromagnetic induction. Therefore, with the continuous advancement of the power industry, the generator rotor will continue to play its irreplaceable role.

Hello dear! The rotor of the generator has the function of converting mechanical energy into electrical energy. The rotor of the generator is one of the key parts of the generator, and its role is to convert mechanical energy into electrical energy.

When the rotor of the generator is rotated by an external force, the mechanical energy is converted into electrical energy through the action of the magnetic field. The rotor consists of a set of windings and magnets, and when the rotor rotates, an electric current is generated on the winding wires through the principle of electromagnetic induction. This current is transmitted from the rotor to an external circuit via a wire, which generates electrical energy.

The rotational speed of the rotor determines the frequency of the generator's output electrical energy. Generally speaking, the rotation speed of the generator rotor is fixed, such as 50Hz or 60Hz, which can generate stable alternating current. In addition, the rotor can also adjust the speed to control the amount of power output from the generator.

When the rotational speed changes, the output electrical energy will also change accordingly. In short, the rotor of the generator is a key part of the generator's ability to work and output electrical energy normally by converting mechanical energy into electrical energy.