Combustion Actuator Control Using Adaptive Rate-of-Change Memory
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Solution Overview
Problem
Existing combustion devices face inefficiencies due to conservative actuator adjustments, leading to delayed responses to fluctuations in air-fuel ratio λ, which can result in unhygienic combustion and system shutdowns.
Innovation Solution
A control and monitoring device that dynamically adjusts actuators based on their nominal or maximum rate of change, ensuring prompt and accurate actuator responses by detecting and, if necessary, empirically determining the rate of change.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If actuators are adjusted conservatively based on the slowest rate of change, then all actuators can operate reliably, but the system response time increases and efficiency decreases
Solution Approach 1:
The control device dynamically adapts the rate of change for each actuator individually, allowing the system to respond quickly when conditions permit while maintaining reliability when needed. Each actuator's rate of change can be adjusted based on real-time system state, eliminating the need for conservative uniform settings across all actuators.
Solution Approach 2:
The system changes the operational parameters (rate of change) of each actuator based on detected system conditions. The control device monitors air-fuel ratio fluctuations and adjusts actuator speeds accordingly, allowing faster response when stability permits and slower adjustment when reliability is concerned.
2Productivity
If actuators operate at their nominal rate of change, then system efficiency improves, but deviations between target and actual positions may occur causing system shutdown
Solution Approach 1:
The control device continuously monitors the actual position and rate of change of each actuator, comparing it with the target values. When deviations are detected, the control device adjusts the rate of change dynamically to correct the deviation while preventing system shutdown, thus maintaining both efficiency and stability.
Solution Approach 2:
The system dynamically adjusts actuator operation between nominal speed for efficiency and reduced speed for stability. The control device modulates the rate of change in real-time based on feedback, allowing actuators to operate at nominal rates when stable and slow down when deviations occur, preventing shutdown while maintaining efficiency.
3Object-affected harmful factors
If the combustion device is set with excess air to prevent unhygienic combustion, then combustion safety improves, but system efficiency decreases
Solution Approach 1:
The system dynamically changes the air-fuel ratio parameter based on detected fluctuations. Instead of maintaining a permanently conservative excess air setting, the control device adjusts the air supply actuator rate of change to respond quickly to changing conditions, allowing the system to operate at optimal efficiency when stable while quickly correcting to prevent unhygienic combustion when fluctuations occur.
Data Source
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AI summary
Adaptive electronic interconnection. Combustion device comprising a burner (1) and at least one supply channel (11, 25) in fluid communication with the burner (1). The combustion device comprises an actuator (3, 4, 9) which acts on a supply (5, 6) of a fluid through the at least one supply channel (11, 25) to the burner (1) and comprises a non-volatile memory. A regulating and/or control and/or monitoring device (16) which is different from the actuator (3, 4, 9) and communicatively connected to the actuator (3, 4, 9) and is configured to: generate a request signal and send it to the actuator (3, 4, 9); wherein the actuator (3, 4, 9) is configured to: receive the request signal; in response to receiving the request signal, check the presence of a stored rate of change in the memory of the actuator (3, 4, 9); to load the stored rate of change from the memory of the actuator (3, 4, 9).