Power Output Boost Control for Forecast Gaps and Fatigue Limits
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Solution Overview
Problem
Independent power producers face penalties for failing to meet forecasted power output targets, and existing methods do not effectively reduce forecast errors without causing excessive fatigue loads on power generating units.
Innovation Solution
A method that forecasts and measures power output, estimates actual production, calculates differences with forecasted values, and boosts power output only when the difference exceeds a predefined threshold, thereby minimizing fatigue loads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the power output of the power generating unit is continuously boosted to meet forecasted targets, then forecast errors are reduced, but excessive fatigue loads are inflicted on the power generating unit
Solution Approach 1:
The patent applies partial action by boosting power output only when necessary - specifically when the estimated actual accumulated power output falls below the forecasted accumulated power output by more than a threshold. This selective boosting reduces forecast errors while minimizing unnecessary fatigue loads that would result from continuous boosting.
Solution Approach 2:
The patent implements feedback control by continuously monitoring the difference between forecasted and estimated actual accumulated power outputs. Based on this feedback, the system dynamically adjusts whether to boost power output, creating a closed-loop control system that responds only when deviations exceed acceptable thresholds.
2Productivity
If the power output is boosted frequently to ensure forecasted power outputs are met, then forecast errors are reduced, but the power generating unit experiences excessive loading
Solution Approach 1:
The system performs partial action by applying power boosting only in specific situations where the forecasted power output is not met by the estimated actual output beyond a threshold. This avoids frequent unnecessary boosting while still ensuring forecast compliance when needed.
Solution Approach 2:
The patent changes the operational parameter (power output level) dynamically based on the calculated difference between forecasted and actual accumulated outputs. The system transitions between normal operation and boosted operation modes, adjusting the power parameter only when the deviation exceeds the threshold value.
Data Source
AI summary
A method for controlling a power output of a power generating unit is disclosed. An accumulated power output of the power generating unit during a predefined time interval is forecasted. An actual power output of the power generating unit is measured during the predefined time interval, and an actual accumulated power output is estimated for the predefined time interval on the basis of the measured actual power output of the power generating unit. A difference between the forecasted accumulated power output and the estimated actual accumulated power output is derived. The power output of the power generating unit is boosted, in the case that the estimated actual accumulated power output is below the forecasted accumulated power output, and the difference between the forecasted accumulated power output and the estimated actual accumulated power output is larger than a predefined threshold value.