WOODWARD 9907-019 2301A Load Sharing & Speed Control

Woodward 9907-019 belongs to the 2301A Load Sharing and Speed Control Unit. It enables the speed adjustment of the generator set engine and the control of load sharing among other units, and is used to control the speed of the engine or the drive engine and to share the load. The product is a low-voltage model and is designed as a reverse-action control unit. It regulates the engine output in response to changes in load or system requirements, enabling the unit to share the load in a parallel system according to the set strategy.

 

                 

1) Comprehensive synchronous control of frequency, phase, and voltage
During the synchronization process, the 9907-019 Load Sharing and Speed Control Unit not only focuses on the rotational speed and phase relationship, but also performs matching control on the generator terminal voltage and the bus voltage, making the parallel conditions more complete and reducing the reactive power impact and voltage disturbance at the instant of closing the switch.

2) The synchronization determination and adjustment process is continuously controllable
The synchronization control process adopts a continuous comparison and gradual correction method, rather than a simple position-checking logic. This ensures that the generator operates more smoothly when approaching the synchronization point, avoiding frequent oscillations or repeated corrections.

3) Supports multiple operations and debugging modes
9907-019 Load Sharing and Speed Control Unit offers various working modes, allowing the user to choose whether to permit closing the switch, participate in control, or merely perform synchronous monitoring based on the system's operating status. This facilitates engineering debugging and system interlock design.

4) Strong interface compatibility for speed control and excitation systems
9907-019 Load Sharing and Speed Control Unit has highly compatible output signal characteristics with Woodward's mainstream speed regulators and voltage control systems. It can be directly connected to the existing control architecture, reducing the need for additional interfaces or signal conversions.

5) Synchronization condition confirmation mechanism is perfected
After reaching the synchronization condition, the module will conduct a time confirmation of the synchronization status to avoid triggering the closing signal by chance due to instantaneous phase coincidence or short-term voltage fluctuations.

6) Modular design, facilitating system integration
The synchronization function is implemented in the form of independent modules, with clear logic and definite interfaces, which is conducive to system integration and maintenance in new or renovated projects.

 

1) Enhance the safety of parallel operation
By simultaneously controlling frequency, pha,se and voltage, the current shock, shaft system strain, ess and grid disturbance risks generated during the simultaneous operation of multiple machines can be significantly reduced.

2) Improve the quality of parallel operation and system stability
A smoother synchronization process helps enhance the stability of the system after parallel operation, reducing the likelihood of oscillations, protection actions, or abnormal load distribution occurring after the parallel connection.

3) Suitable for systems with high requirements for parallel conditions
Compared to the scheme that only performs speed and phase matching, the 9907-019 Load Sharing and Speed Control Unit is more suitable for application environments with smaller grid capacity, load sensitivity, or frequent parallel operation of multiple machines.

4) Reduce system debugging and operation risks
Clear mode division and synchronous confirmation logic enable engineers to verify system functions in stages, thereby reducing the risk of failure upon initial operation.

5) Facilitates long-term and reliable operation of the system
Reducing parallel impact and incorrect actions under abnormal conditions, it helps to extend the service life of generators and switchgear.

 

1) A parallel operation system of multiple generators
Used in industrial power plants, self-owned power stations, or energy centers, where multiple generators are connected in parallel to the common bus for synchronous control.

2) Backup power supply and emergency power supply system
In critical load areas such as hospitals, data centers, and communication facilities, ensure high-quality parallel switching between backup generators and the main power supply.

3) Distributed Generation and Microgrid Systems
Suitable for the synchronous control requirements of multiple power sources connected to the same grid in distributed energy systems.

4) Ships and Mobile Power Stations
In the power systems of ships or mobile power units, achieve stable control for multiple machines to be connected in parallel and for load switching.