Introduction to ATS and Parallel Operation Systems for Diesel Generator Sets

With the increasing demand for reliable power supply across various industries, diesel generator sets have become essential backup power equipment for hospitals, data centers, factories, communication systems, airports, and other critical facilities. Among them, the ATS automatic transfer system and parallel operation system are key components for improving the automation level and power supply capacity of diesel generator sets.

ATS Automatic Transfer System for Diesel Generator Sets

ATS (Automatic Transfer Switch) is mainly used for automatic switching between utility power and backup power sources.

When the utility power supply is normal, the load is powered by the grid. When a power failure or abnormal condition occurs, the ATS system automatically detects the power status, starts the diesel generator set, and quickly transfers the load to the generator power supply.

Combined with an automatic start diesel generator set, the ATS system forms a complete automatic emergency power supply system, including:

• Automatic detection of utility power failure;

• Automatic startup of the generator set;

• Automatic load transfer;

• Automatic transfer back to utility power after power restoration.

The ATS system is widely used in hospitals, banks, telecommunications, airports, broadcasting stations, hotels, factories, and other facilities that require continuous and reliable power supply, providing stable emergency power protection for critical equipment.

Parallel Operation System for Diesel Generator Sets

The parallel operation system is a dedicated control system designed for multiple diesel generator sets operating in parallel.

Through parallel technology, two or more diesel generator sets can be connected and operated together to achieve higher output power while improving the flexibility and reliability of the power supply system.

The parallel operation system is mainly suitable for diesel generator sets equipped with electronic governors. Through advanced automatic control technology, it can achieve:

• Automatic synchronization and parallel connection of multiple generator sets;

• Automatic load sharing;

• Automatic addition or removal of generator sets according to load demand;

• Automatic separation and shutdown;

• Fault alarm and protection functions.

Compared with a single high-power generator set, multiple generator sets operating in parallel provide greater flexibility. When the load changes, the system can automatically adjust the number of operating units according to actual requirements, improving fuel efficiency and reducing operating costs.

Advantages of the Parallel Operation System

The parallel operation system can automatically regulate power frequency and active power distribution among generator sets, ensuring stable operation of each unit.

1. Improved Power Supply Reliability

Multiple generator sets can operate together. If one unit requires maintenance or experiences a failure, the remaining units can continue supplying power, improving system availability and reliability.

2. Optimized Load Distribution

The system automatically distributes power according to load requirements, keeping each generator set operating under an appropriate load condition and improving overall efficiency.

3. Reduced Operating Costs

Under low-load conditions, the system can reduce the number of operating generator sets, avoiding long-term low-load operation of large-capacity units and improving fuel utilization.

4. Reduced Manual Operation

The automatic control system reduces the workload of operators and improves power station management efficiency.

High-Reliability Parallel Control Cabinet Design

The diesel generator parallel control cabinet integrates synchronization controllers, load-sharing modules, PLC (optional), high-quality electrical components, circuit breakers, copper busbars, and standardized cabinet structures.

Designed and optimized by professional engineers, the parallel control cabinet features:

• Complete functions;

• Precise control;

• Safe and reliable operation;

• Easy maintenance;

• Strong adaptability.

By combining the ATS automatic transfer system with the parallel control system, diesel generator sets can achieve a higher level of intelligent power management, providing users with safe, efficient, and stable power solutions.

YingTai Group is committed to providing high-reliability diesel generator sets and intelligent power system solutions worldwide, meeting the requirements of different applications for backup power and continuous power supply.