Servo Motor Control Parameter Adjustment for Oscillation
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Solution Overview
Problem
Conventional servo motor control apparatuses face challenges in adjusting control parameters to optimal values, leading to oscillation in the feedback loop, which can cause damage to the load and require extensive time and effort for manual adjustment, as existing auto-tuning methods do not consistently achieve optimal settings.
Innovation Solution
A servo motor control apparatus with an oscillation detecting section and parameter operating section that dynamically adjusts control parameters by narrowing the frequency band width of the feedback loop when oscillation is detected, allowing for prompt stabilization and minimizing load damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If control parameters are adjusted to optimal values for tracking performance, then response speed and tracking accuracy are improved, but oscillation occurs in the feedback loop
Solution Approach 1:
The patent implements dynamic adjustment of control parameters based on real-time oscillation detection. The system transitions from static parameter settings to dynamic adaptation, where parameters are automatically modified when oscillation is detected, resolving the contradiction between achieving fast response and maintaining stability.
Solution Approach 2:
The patent introduces a feedback mechanism where the oscillation detection result feeds back to the control parameter adjustment. This closed-loop feedback allows the system to automatically detect oscillation and adjust parameters accordingly, preventing the harmful oscillation while maintaining optimal tracking performance.
2Stability of the object's composition
If manual adjustment of control parameters is performed to eliminate oscillation, then feedback loop stability is improved, but extensive time and effort are required
Solution Approach 1:
The patent enables the system to automatically detect and correct its own oscillation problems without external intervention. The oscillation detection section and parameter adjustment section work together to self-correct the control parameters, eliminating the need for manual adjustment and significantly reducing the time and effort required.
Solution Approach 2:
The patent introduces an intermediary oscillation detection section that acts as a mediator between the feedback loop and the parameter adjustment mechanism. This intermediary automatically identifies oscillation conditions and triggers appropriate parameter changes, replacing the need for manual intervention.
3Manufacturing precision
If control parameters are adjusted to achieve optimal tracking, then manufacturing precision is improved, but oscillation causes damage to the load
Solution Approach 1:
The patent applies preliminary anti-action by detecting oscillation early and automatically adjusting control parameters to prevent harmful oscillation before it causes damage to the load. The system proactively counteracts the harmful effects by modifying parameters when oscillation is first detected, protecting the load while maintaining tracking precision.
Data Source
AI summary
A servo motor control apparatus has a feedback loop. When an oscillation detection signal indicates no detection of oscillation, a parameter operating section gives an updating section an operational instruction to set a control parameter in accordance with a supplied set value. When the oscillation detection signal indicates detection of oscillation, the parameter operating section gives the updating section an operational instruction to set such a control parameter as to narrow a frequency band width of the feedback loop.