Power Generation Overfiring Timing Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current operational support devices for power generation facilities lack effective methods to optimize operations, particularly in setting execution times for overfiring operations and determining appropriate stop times, leading to inefficiencies and potential equipment deterioration.
Innovation Solution
An operational support device that includes units for acquiring life index values, degree of contribution, and output patterns to set optimal execution times for overfiring and determine stop times based on maximizing revenue and maintaining equipment life, while also considering external environmental conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If overfiring operation is performed to increase power generation output, then productivity is improved, but reliability deteriorates due to equipment deterioration
Solution Approach 1:
The system performs preliminary calculations of life index values and life consumption values before executing overfiring operations. By predicting the impact on equipment life in advance and comparing it against remaining life thresholds, the system determines optimal timing for overfiring operations, allowing productivity improvement while preventing reliability deterioration
Solution Approach 2:
The system dynamically adjusts operational parameters based on real-time life index values and predicted life consumption. The overfiring execution timing is not fixed but adaptively determined by comparing current equipment state against thresholds, enabling flexible optimization of the productivity-reliability tradeoff
2Loss of time
If overfiring operation is performed to maximize revenue, then loss of time is reduced, but object-generated harmful factors increase due to equipment stress
Solution Approach 1:
The system continuously monitors life index values and calculates life consumption values to provide feedback on equipment stress levels. This feedback mechanism allows the system to adjust overfiring timing and duration to maximize revenue while keeping equipment stress within acceptable limits, preventing excessive harmful factors
3Device complexity
If simple operational scheduling is used to maintain equipment life, then device complexity is reduced, but productivity deteriorates due to missed optimization opportunities
Solution Approach 1:
The system performs self-assessment by automatically calculating life index values and life consumption values based on operational data. This self-service capability eliminates the need for complex external monitoring systems while enabling intelligent optimization of overfiring timing to improve productivity
Solution Approach 2:
The system transforms operational scheduling from fixed time-based intervals to dynamic parameter-based decisions using life index values and life consumption rates. This parameter change enables sophisticated productivity optimization without requiring proportionally complex control infrastructure
Data Source
AI summary
An operational support device sets an execution time of overfiring serving as an operation of a power generation facility at an output higher than a rated output. The device includes a life index value acquisition unit that acquires a life index value at a start time, the life index value being an index indicating a life of the power generation facility and changing in value in one direction with the output of the power generation facility; an output pattern setting unit that sets an output pattern per unit time of the power generation facility from the start time to a stop time based on the life index value such that the life index value reaches a predetermined value; and an overfiring setting unit that sets, based on the output pattern, a time in a period from the start to the stop time at which the overfiring is to be performed.