Turbine Droop Response Correction for Consistent Power Output
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing droop response control systems for turbines fail to maintain consistent and repeatable power output variations in response to frequency changes due to ambient operating conditions and load levels, leading to non-compliance with quality assurance standards.
Innovation Solution
A multivariable droop response correction system that generates correction factors to adjust fuel flow commands, using interpolation techniques based on ambient conditions and load levels, ensuring the droop response is invariant and repeatable.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional droop response control is used, then the system is simple to operate, but the droop response becomes inconsistent and non-repeatable under varying ambient conditions and load levels
Solution Approach 1:
The system pre-calculates and stores correction factors in lookup tables for various operating conditions (ambient temperature, pressure, humidity, load levels) before actual operation. When droop control is needed, the appropriate correction factor is retrieved and applied, eliminating the need for complex real-time calculations while ensuring consistent droop response across all operating conditions
Solution Approach 2:
The invention introduces correction factors that modify the relationship between frequency deviation and power output based on ambient conditions and load levels. By changing the control parameters dynamically according to operating conditions, the system maintains repeatable droop response characteristics despite environmental variations
2Manufacturing precision
If correction factors are applied to adjust fuel flow commands, then droop response becomes invariant and repeatable, but the control system requires multivariable correction mechanisms
Solution Approach 1:
Correction factors are pre-determined and stored in lookup tables based on extensive testing and modeling of turbine performance under various conditions. During operation, the controller simply retrieves the appropriate correction factor from the table based on current ambient conditions and load level, avoiding complex real-time computations while achieving precise droop control
Solution Approach 2:
The correction factor acts as an intermediary element between the frequency deviation signal and the fuel flow command. This intermediary compensates for the effects of ambient conditions and load variations, allowing the use of simple proportional control logic while achieving precise and repeatable droop response through the mediating correction factor
Data Source
AI summary
A system includes a controller configured to control an operational behavior of a turbine system. The controller includes a droop response system configured to detect one or more operational characteristics of the turbine system as an indication of a frequency variation of an electric power system associated with the turbine system. The droop response system is further configured to generate a response to vary an output of the turbine system in response to the indication of the frequency variation. The controller includes a multivariable droop response correction system configured to determine one or more possible errors associated with the one or more operational characteristics of the turbine system, and to generate a plurality of correction factors to apply to the response generated by the droop response system. The plurality of correction factors is configured to correct the response generated by the droop response system.