What Is Synchronous Generator And How To Classify Synchronous Generator

Synchronous generators, the AC power supply for various equipment, are now the main source of power generation in the world. Synchronous generator is one of the three major components of diesel generator set (engine, synchronous generator and control system). Let's follow the editor of Jiangsu Starlight Power to introduce synchronous generator.

Generally, the stator of single and three-phase synchronous generators is armature, and the rotor is magnetic pole. When the rotor excitation winding is energized with DC, a constant magnetic field is established. When the rotor rotates, the stator conductor induces the AC electromotive force due to its relative motion with the magnetic field. When the motor has p pairs of magnetic poles, the rotor rotates once and the induced electromotive force changes p times. If the rotor speed per second is n, the rotor rotates n/60 revolutions per second, so the induced electromotive force changes pn/60 times per second, that is, the frequency of the electromotive force is f=pn/60 (Hz), where f - the frequency of the electromotive force. P - Number of magnetic poles. N -- generator speed.

It can be seen that when the number of magnetic poles p and speed n of synchronous generator are fixed, the frequency of AC electromotive force of generator is fixed. That is to say, synchronous generator has a strictly constant relationship between rotor speed and AC frequency. At a constant frequency, the rotor speed is constant regardless of the load. The speed of the generator rotor is equal to the speed of the rotating magnetic field in the generator air gap (stator). This is the name of synchronous motor.

Synchronous generators can be divided into:

(1) According to the structure of generators, synchronous generators can be divided into rotating armature type (referred to as armature type) and rotating magnetic pole type (referred to as rotating magnetic type).

(2) According to the number of generator phases, synchronous generators can be divided into single-phase synchronous generators and three-phase synchronous generators. The power of single-phase synchronous generator is small, usually not more than 6kw, while the power of three-phase synchronous generator can reach tens of thousands of kilowatts.

Jiangsu Starlight Electricity Equipments Co.,Ltd., as an OEM supporting manufacturer authorized by Cummins to provide Chinese diesel generator sets, has professional manufacturing technology, perfect quality management system and strong R&D technical strength. It can provide users with generator sets of various specifications from 15KW to 2500KW. It can also provide users with one-stop service of design, supply, debugging and maintenance at any time. welcome contact us by email sales@dieselgeneratortech.com.