Motor Control System Automatic Voltage Adjustment for Instability
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Solution Overview
Problem
Existing motor control systems require extensive adjustment of control parameters to detect and prevent issues like step-out and vibration caused by load torque, leading to prolonged development periods and reduced versatility.
Innovation Solution
A motor control system that includes an inverter, current detecting unit, voltage command calculating unit, storage unit, abnormality degree calculation equation updating unit, abnormality degree calculating unit, and voltage adjusting unit, which automatically adjusts voltage commands based on abnormality degrees to enhance detection and prevention of motor instability without manual parameter adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual adjustment of control parameters is performed to detect and prevent motor instability, then detection accuracy is improved, but development period is prolonged and versatility is reduced
Solution Approach 1:
The control system automatically adjusts control parameters without requiring manual intervention. The parameter adjustment is performed by the system itself based on detected motor states, eliminating the need for external engineers to manually tune parameters for each application scenario.
Solution Approach 2:
The system dynamically changes control parameters based on detected motor conditions. By automatically adjusting parameters such as current limits and control gains according to real-time motor states, the system adapts to different applications without manual reconfiguration, thereby reducing development time while maintaining detection accuracy.
2Measurement precision
If manual adjustment of control parameters is performed to detect and prevent motor instability, then detection accuracy is improved, but system versatility is reduced
Solution Approach 1:
The control system is designed to universally handle different motor applications through automatic parameter adjustment. By incorporating adaptive algorithms that work across various motor types and load conditions, the system maintains high detection accuracy while being applicable to diverse scenarios without requiring application-specific manual tuning.
Solution Approach 2:
The system dynamically adapts control parameters based on real-time motor conditions rather than using fixed manually-tuned values. This dynamic adjustment capability allows the same control system to effectively handle varying motor specifications and operating conditions, thereby enhancing versatility while maintaining detection precision.
3Reliability
If control parameters are optimized for specific applications, then detection accuracy is improved, but adjustment work is required for each motor control system
Solution Approach 1:
The control system automatically performs parameter optimization without requiring external adjustment work. The system self-adjusts control parameters based on detected motor characteristics and operating conditions, eliminating the need for engineers to manually optimize parameters for each specific motor control application while maintaining high detection reliability.
Solution Approach 2:
The system uses feedback from motor current detection and state monitoring to automatically adjust control parameters. By continuously monitoring motor behavior and adjusting parameters based on detected anomalies and performance feedback, the system achieves high detection reliability without requiring manual optimization for each application.
Data Source
AI summary
The invention is directed to omit an adjustment work of a motor control system and increase versatility. Provided is a motor control system including: an inverter which outputs a voltage to a motor based on a voltage command; a current detecting unit which outputs a current detection value based on a current flowing through the motor of a state quantity detecting unit; a voltage command calculating unit which outputs the voltage command of the state quantity detecting unit based on the high-order command and the current detection value of the state quantity detecting unit; a storage unit which outputs a data set of the quantity of state of the state quantity detecting unit based on the quantity of state of a driving target of the motor of the state quantity detecting unit; an abnormality degree calculation equation updating unit which outputs an abnormality degree calculation equation for computing the abnormality degree of the driving target of the state quantity detecting unit based on the data set of the state quantity detecting unit; an abnormality degree calculating unit which outputs the abnormality degree based on the quantity of state of the state quantity detecting unit and the abnormality degree calculation equation of the state quantity detecting unit; and a voltage adjusting unit which outputs an adjustment voltage for adjusting the voltage command of the state quantity detecting unit based on the abnormality degree of the state quantity detecting unit.