The WOODWARD 9907-018 is a precision-engineered load-sharing and speed control module from Woodward’s 2301A series, designed to synchronize prime movers (diesel engines, gas turbines, and generators) in distributed power systems. As a critical component of industrial automation spare parts, it ensures seamless coordination between multiple power sources, enabling stable grid integration and efficient energy distribution.
In power generation setups, the WOODWARD 9907-018 serves as the backbone of load-sharing systems. For example, in a microgrid combining solar inverters and gas generators, technicians mount the module in the main switchgear panel to balance power output and maintain grid frequency. Its dual-mode operation—isochronous (constant speed for standalone systems) and droop (speed adjustment based on load for parallel operation)—makes it versatile for both isolated and grid-tied applications. The module’s 0–200 mA actuator compatibility works seamlessly with Woodward’s EG and PB actuators, ensuring precise fuel metering in diesel engines. With a compact sheet-metal chassis (15.25 x 7.125 x 2.5 inches) and CE certification, the WOODWARD 9907-018 withstands harsh environments, including temperature fluctuations from -40°C to +85°C during storage.
The WOODWARD 9907-018 delivers mission-critical performance for power systems. Its self-contained load sensor eliminates the need for external equipment, simplifying integration in applications like combined heat and power (CHP) plants. By continuously monitoring generator load via current transformers, the module adjusts engine speed to maintain ±0.5% frequency stability, critical for preventing voltage sags during peak demand.
Rugged design ensures reliability in extreme conditions: a corrosion-resistant chassis and RFI shielding protect against electromagnetic interference common in industrial environments. Technicians appreciate its field-adjustable potentiometers, which allow on-site tuning of speed droop (5–10%) and idle speed (55% of rated speed) without specialized software. This contrasts with generic controllers that require complex programming, making the WOODWARD 9907-018 ideal for retrofitting legacy systems.
Integration with modern DCS architectures is streamlined through analog compatibility with ABB I/O modules. For example, in a water treatment plant upgrading to an ABB AC 800M system, the WOODWARD 9907-018 interfaces directly with ABB’s AI810 modules, providing real-time load data for predictive maintenance algorithmscompacthardwareselector.automation.abb.com.
- Power Generation: In a biomass power plant, the WOODWARD 9907-018 synchronizes three gas engines to supply 5 MW of power to a local grid. Its droop control ensures balanced load sharing during variable biomass feed rates, reducing engine wear by 30% compared to manual adjustments.
- Oil & Gas: Offshore platforms use the module to manage load between diesel generators and emergency turbines during rig startup. Its isochronous mode maintains 60 Hz frequency despite voltage spikes from motor startups.
- Mining: A gold mine’s distributed energy system employs the WOODWARD 9907-018 to coordinate solar panels and backup generators. The module’s load-shedding logic prioritizes critical equipment (e.g., ventilation fans) during grid outages, minimizing production downtime.
- HVAC: In a data center’s microgrid, the controller balances power between chillers and UPS systems, ensuring stable operation during utility grid brownouts.
- WOODWARD 9907-019: Successor model with Ethernet connectivity for remote diagnostics.
- WOODWARD 9907-018-HT: Extended-temperature variant (-40°C to +85°C) for arctic or desert installations.
- WOODWARD 2301E: Software-configurable upgrade with advanced load-shedding algorithms.
- WOODWARD 9907-020: Higher-power version for 10 MW+ generator systems.
- WOODWARD 9907-018-KIT: Includes mounting brackets and calibration tools for quick deployment.
- WOODWARD 9907-021: Explosion-proof variant (ATEX Zone 2) for hazardous environments.
Installation: Mount the WOODWARD 9907-018 in a ventilated control cabinet, leaving 50 mm clearance for heat dissipation. Connect shielded twisted-pair cables for speed sensor inputs to minimize noise. A regulated 24 VDC power supply with surge protection is recommended to prevent voltage fluctuations from damaging the module.
Maintenance:
- Monthly: Inspect terminal connections for corrosion and verify actuator response time (≤200 ms).
- Quarterly: Calibrate analog inputs using a precision signal generator to maintain ±0.1% accuracy.
- Annually: Replace internal capacitors to prevent electrolyte degradation in high-temperature environments.
- Firmware: While the module lacks software updates, Woodward offers paid retrofits for compatibility with newer actuators.
Diagnostic LEDs indicate faults like open speed sensor circuits or low-voltage conditions, guiding technicians to replace faulty components within 30 minutes on average.
The WOODWARD 9907-018 is backed by a one-year warranty and free replacement service provided exclusively by Xiamen Xiongba E-commerce Co., Ltd. Branch (not the OEM). Customers can file claims by emailing support@xiongba.com with proof of purchase and serial number. Xiamen Xiongba ensures authenticity through pre-shipment testing, including functional verification of load-sharing algorithms and datasheet compliance checks. Replacements are shipped within 48 hours of claim approval, supported by a global logistics network covering 180+ countries.
Xiamen Xiongba E-commerce Co., Ltd. Branch specializes in industrial automation distribution and global procurement. We provide a one-year warranty and free replacement service, sourcing DCS, PLC, MVME modules, Anybus converters, RTU modules, industrial PCs, low-frequency displays, and SCSI HMIs to solve procurement challenges with competitive pricing.
