4301-MBP-DFCM
Product Description
The 4301-MBP-DFCM is a precision digital fuel control module developed by Woodward, designed to regulate fuel flow in gas turbines and reciprocating engines, ensuring optimal combustion efficiency and emissions control. Its core function is to receive speed, pressure, and temperature feedback signals, process them via advanced control algorithms, and adjust fuel valves or injectors to maintain stable operation across varying load conditions—critical for applications in power generation, oil & gas, and marine propulsion, where even a 1% deviation in fuel flow can increase emissions by 5% or reduce efficiency by 0.5%.
Equipped with a 32-bit microprocessor and a 16-bit ADC (analog-to-digital converter), the module supports multiple fuel types, including natural gas, distillate, and heavy fuel oil, with configurable fuel maps to adapt to fuel quality variations (e.g., calorific value changes in natural gas from 38MJ/m³ to 42MJ/m³). It integrates PID control with feedforward compensation, enabling rapid response to load changes (e.g., adjusting fuel flow by 10% within 200ms when a turbine load increases from 50% to 70%), minimizing speed fluctuations (≤±0.2% of rated speed).
The module features 4 analog input channels (16-bit resolution) for feedback signals: turbine speed (0-10V or 4-20mA), exhaust temperature (thermocouple or RTD), fuel pressure (4-20mA), and load demand (0-10V). It includes 2 analog output channels (16-bit resolution, 4-20mA) to control fuel valves, with a maximum current output of 20mA to drive proportional solenoid valves (e.g., Woodward’s 9907-167 actuator). For example, in a 5MW gas turbine, these outputs adjust the fuel control valve to maintain a 15:1 air-fuel ratio, ensuring NOₓ emissions remain below 25ppm.