Generator Set Auto-Start and Full Automatic Control

As the demand for stable power supply continues to rise, generator sets are becoming more automated. With the introduction of auto-start and full automatic control systems, generator sets can respond more efficiently and intelligently to power outages and other unexpected situations, ensuring a continuous and stable power supply. In this article, we'll break down the auto-start and auto-shutdown functions of generator set, the working principles behind automatic start and power switching, and the importance of these features in different industries.

Full Automatic Control System of Generator Sets

The full automatic control system is an intelligent control technology. It automatically adjusts the generator's output power based on load changes and controls when it starts and stops. This system ensures that parameters like voltage, current, and frequency stay stable, maintaining the overall reliability and stability of the power supply. With this automated management, the generator set can respond in real-time to changes in load or issues with the external power supply, ensuring continuous power without interruption.

How the Full Automatic Control System Works

The full automatic control system relies on sensors, monitoring devices, and controllers working together. It continuously monitors the power grid's status, and if it detects load changes or system faults, it automatically adjusts the generator's settings to keep everything running smoothly. The system adjusts parameters such as the generator's output power, voltage, and frequency, automatically starting or stopping the generator as needed to match the changing load.

Auto-Start Function

The auto-start function is key for making sure power supply doesn't get interrupted when external power fails or becomes unstable. The auto-start system monitors the status of the external power supply. If the main power supply goes down, it automatically starts the diesel generator to take over.

Here's how the auto-start process works:

Power Outage Detection and Automatic Switching: When the main power supply goes down, the system quickly detects it and switches to the backup power. The monitoring circuit cuts off the main power and triggers the auto-start controller. The controller sends a signal to the motor to start the diesel generator.

Engine Start and Speed Regulation: Once the motor starts, the lubrication system builds up pressure. As soon as the oil pressure reaches the right level, a signal is sent to begin the speed-up process. The system opens the oil circuit, adjusts the throttle, and speeds up the diesel engine until it reaches the rated speed.

Stable Generator Output: The automatic voltage regulator ensures the generator outputs stable voltage once it starts, meeting the load's needs. Once the generator reaches its full speed, it starts supplying power to the load, keeping the equipment running without interruptions.

Load Switching: After the generator is up and running, the load switching circuit kicks in, and the diesel generator starts supplying power to the load, making sure the power supply is unaffected.

Auto-Shutdown Function

The auto-shutdown function ensures the generator switches off when the main power is restored. It not only prevents unnecessary energy waste, but also helps protect the generator from running too long without load, extending its lifespan.
The auto-shutdown process looks like this:

Main Power Restoration Detection: When the main power supply comes back on, the monitoring circuit detects the signal and switches the system to the main power. The controller cuts off the diesel generator's power output, allowing the load to smoothly transition to the main power supply.

Idle Operation and Shutdown: After the switch to main power, the generator continues running at idle speed for about 1 to 3 minutes. This ensures the system load moves smoothly from the diesel generator to the main power.

Automatic Shutdown: Once the idle time is up, the generator automatically shuts down. This process is managed by the automatic control system, preventing energy waste and reducing wear and tear on the machine.

Abnormal Shutdown: If something goes wrong with the generator—like low oil pressure or excessive speed—the system detects the issue and sounds an alarm. It sends a signal to shut down the generator safely.

Automatic Start and Power Switching Function

The automatic start and power switching function ensures that if the main power supply fails, the generator can quickly start and take over the load, preventing any power interruptions. Here's how it works.

Main Power Cutoff and Diesel Engine Start: When the main power supply goes down, the system disconnects it and triggers the auto-start controller to start the diesel generator.

Oil Pressure Rise and Speed-Up: During startup, the oil pressure gradually increases. Once the oil pressure reaches the right level, the system opens the oil circuit and adjusts the throttle to speed up the diesel engine to its full speed.

Generator Output and Load Power Supply: After the generator stabilizes, it outputs a stable voltage through the automatic voltage regulator and starts supplying power to the load.

Main Power Restoration and Automatic Switching: When the main power comes back online, the system automatically switches back to it, and the diesel generator stops running. It then enters standby mode, ready for the next power failure.

Conclusion

The auto-start and auto-shutdown functions, along with the full automatic control system, provide an efficient and reliable solution for backup power. Whether it's quickly taking over the load during an outage or switching back to the main power when it's restored, these intelligent functions greatly enhance the system's automation and emergency response capabilities. As these technologies continue to improve, generator sets will become even more essential in various industries.