Oxygen Trim Controller Tuning During Boiler Commissioning

The patent applies preliminary action by performing controller tuning during the commissioning process itself, rather than as a separate subsequent step. The method establishes transfer function models and calculates PID parameters while the system is being commissioned, integrating the tuning activity into the initial setup phase. This eliminates the need for separate trial-and-error tuning sessions after commissioning is complete, thereby reducing total commissioning time while maintaining tuning quality.

The patent replaces the mechanical trial-and-error tuning method with an automated computational approach. Instead of manually adjusting parameters through repeated testing, the system uses transfer function models and algorithmic calculations to determine optimal PID parameters. This substitution of manual mechanical adjustment with automated computational methods significantly reduces the time required while improving consistency and reliability of the tuning process.

The patent merges the commissioning process with the controller tuning process into a single integrated workflow. Rather than completing commissioning first and then performing separate tuning, the method combines both activities simultaneously. The commissioning data collected during system setup is directly used to establish transfer function models and calculate optimal controller parameters, eliminating the need for a separate post-commissioning tuning phase and thereby improving installation productivity without sacrificing parameter precision.

The patent performs controller parameter optimization as a preliminary action during commissioning rather than as a subsequent step. By calculating PID parameters using transfer function models established during the commissioning phase, the system prepares the controller for optimal operation before full deployment. This preliminary tuning approach maintains manufacturing precision while improving overall installation productivity by eliminating sequential process delays.

The patent merges the definition of air and fuel actuator positions with the tuning of controller parameters into a single unified process. The method uses the same commissioning data and transfer function models to accomplish both tasks simultaneously. By combining these previously separate activities, the process remains simple and straightforward while significantly reducing the total time required for commissioning, as no additional separate tuning step is needed.

The patent enables the commissioning process to be self-sufficient by having it generate all necessary information for both actuator position definition and controller tuning. The transfer function models established during commissioning automatically provide the basis for calculating optimal PID parameters without requiring external tuning activities. This self-service approach maintains ease of operation while reducing total commissioning time by eliminating dependency on separate subsequent tuning processes.