Diesel generator can produce a large voltage when working, and in the whole process of power generation, it is necessary to adjust the voltage, when the generator load is rated value, voltage automatic regulator to keep stable, then the generator excitation current, voltage and main excitation current are stable. So what are the types of diesel generator voltage regulators? What is the function of the voltage regulator? Here is a detailed understanding:
How to adjust voltage regulator of diesel generator
1, thyristor automatic pressure regulation
This voltage regulation means that the excitation current is controlled by the thyristor connected to the excitation circuit, so that the output voltage of the generator can be automatically regulated with the change of load.
There are many ways to control the SCR. First, the oscillation circuit composed of single-junction transistors is used to generate trigger pulse and change the charging voltage of the capacitor, so as to control the time of triggering pulse and change the conduction Angle of the SCR. The second is to use the switching characteristics of the triode to change the charging voltage of the capacitor, control the conduction time of the triode to produce the trigger pulse, and also control the conduction Angle of the silicon controlled.
2, phase compound automatic pressure regulation
For the special equipment with large load changes in starting and running, it is better to use the phase compound automatic voltage regulation mode. In the power supply of special equipment, the control part of the generator adopts the phase compound automatic voltage regulation mode. Under THE APPROPRIATE PARAMETERS, THE EXCITATION current REQUIRED by the generator is supplied, so the voltage can be automatically adjusted to keep stable in a certain range. Because of its characteristics, it is widely used in engineering buildings and special equipment.
What is the function of the voltage regulator
Automatic voltage regulator (AVR) in diesel generator sets has automatic load reduction characteristics to protect the generator, allowing to apply full load to the generator at one time, voltage adjustment rate can be realized. 1% (special requirements can be met & ViewMN; 0.5%).
If the permanent magnet generator excitation (PMG) system is selected, the generator has higher motor starting ability and anti-interference to the output voltage waveform distortion of the host stator generated by nonlinear loads (such as silicon controlled DC motor,UPS, etc.).
Jiangsu Meiao Power Technology Co., Ltd. is an important manufacturer of diesel generators. The company mainly manufactures and sells diesel generator sets with power of 3-3000kW, mobile power station of 24-600kW, Marine emergency diesel generator set of 24-800kW, gas generator set, heavy oil generator set and all kinds of imported series, special series (trailer, static speaker, mobile lighthouse, container, etc.) diesel generator At the same time, we are engaged in generator set maintenance and after-sale service of generator set accessories.
