What is the main function of the powerful AVR voltage regulator in this diesel generator?

The core function of the AVR is to stabilize the output voltage of the diesel generator, which is the key to ensuring the normal operation of the generator and providing stable power supply for electrical equipment. During the operation of the generator, the AVR will continuously monitor the actual voltage value at the output end of the generator and accurately compare it with the preset target voltage value. Once a deviation is found between the two, whether the voltage is too high or too low, the AVR will respond quickly. It adjusts the magnitude of the excitation current by controlling the excitation system, thereby changing the magnetic field strength of the generator.

When the voltage is too low, the AVR will increase the excitation current to enhance the magnetic field of the generator, thereby increasing the output voltage; when the voltage is too high, the AVR will reduce the excitation current and reduce the magnetic field strength of the generator to reduce the output voltage. Through this precise adjustment mechanism, the AVR can ensure that the output voltage of the generator remains constant under different loads and working conditions, providing stable and reliable power support for electrical equipment.

First of all, it can effectively prevent the generator from overloading. During the operation of the generator, if the load is too large, it may cause the internal components of the generator to overheat and damage, shortening the service life of the generator. By automatically controlling the amount of voltage generated, the AVR can adjust the generator output in time according to the load changes, avoiding damage to the diesel generator due to overload. Secondly, the AVR can provide surge protection. Voltage fluctuations and surges are common problems in power systems. These abnormal voltage changes may cause overload or damage to connected equipment or machines.

The AVR helps to keep the output terminals at a safe voltage level. When the voltage is detected to be too high, the output voltage can be quickly reduced to protect the equipment from damage. In addition, if the permanent magnet generator excitation system is selected, the AVR also has the ability to resist interference with the main engine stator output voltage waveform distortion generated by non-linear loads. Non-linear loads generate harmonics during operation, causing voltage waveform distortion, affecting the normal operation of the generator and the performance of the equipment. The AVR can effectively suppress these interferences, ensure the stable and reliable output voltage of the generator, and ensure the normal operation of the connected equipment.

High-quality AVR enables the generator to generate electricity more efficiently and consume less fuel while completing the same work tasks. It optimizes the power generation process and avoids unnecessary energy loss by precisely controlling the output voltage and current of the generator. For example, when the load changes, the AVR can quickly adjust the output of the generator to keep it in the best working state, reducing the energy waste caused by unstable output. This not only helps to reduce the operating cost of the generator, but also reduces the impact on the environment.

At the same time, a more efficient power generation process can also extend the service life of the generator and reduce the occurrence of maintenance problems. Because the generator operates in a more stable and efficient state, its internal components are subject to relatively less wear and pressure, which reduces the probability of failure and can save users a lot of money in the long run.

As one of the most critical control components in the generator, the AVR has highly intelligent multi-functional protection and control capabilities. It has an automatic load reduction feature to protect the generator. When the generator has abnormal conditions, such as excessive output voltage and abnormal frequency, the AVR can automatically start the load reduction program to reduce the output load of the generator and prevent the generator from being further damaged due to overload. In addition, the AVR can also monitor the engine speed. If the engine speed is lower than the set value of the pre-selected speed, the AVR will reduce the output voltage accordingly. This is because when the engine speed is too low, the generator's power generation capacity will decrease. If the output voltage continues to be high, it may cause the engine to overexcite and increase the burden on the engine. By reducing the output voltage, the AVR can mitigate the impact during loading, reduce the burden on the engine, and protect the normal operation of the engine.