PARAMETRIC COMPENSATION OF INDUCTIVE LOAD DRIFT IN MEASUREMENT AND CONTROL SYSTEMS OF POWER CONVERTER OUTPUT VOLTAGE
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Abstract
The article presents a method of parametric compensation of inductive load drift in measurement and control systems of power converter output voltage. Variations in inductance over time cause phase shifts and voltage instability, reducing measurement accuracy. An automatic compensation algorithm is developed, based on dynamic adjustment of the compensating capacitor capacitance according to the current load parameters. Analytical relationships between inductance variation, capacitance, and output voltage are derived, and vector diagrams confirm phase balance under correct compensation conditions. Experimental results show a 20–25% improvement in measurement accuracy and output voltage stabilization within ±2% for inductance changes up to ±15%. The proposed method can be implemented in intelligent diagnostic and control systems of industrial drives for metalworking machines.
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