The Actual Exactness of a Fast RMS Correction during Abrupt Voltage Change

Area of Science:

• Electrical Engineering
• Power Systems Analysis
• Measurement Science

Background:

• Accurate Root Mean Square (RMS) measurements are critical for power system stability and voltage regulation.
• Existing RMS estimation methods struggle with abrupt voltage changes within a single AC cycle.
• Real-world power systems frequently exhibit voltage discontinuities that challenge measurement accuracy.

Purpose of the Study:

• To develop and validate a mathematically based approach for improving voltage RMS estimation accuracy.
• To address the limitations of current methods in handling rapid voltage variations.
• To enhance the reliability of RMS measurements for time-critical power applications.

Main Methods:

• A novel mathematical algorithm was developed for RMS voltage calculation.
• The proposed method was validated through laboratory experiments.
• Performance was assessed under conditions simulating abrupt voltage changes.

Main Results:

• The new method significantly improves the accuracy of voltage RMS estimation.
• It demonstrates superior performance compared to existing techniques, particularly during fractional AC periods.
• Laboratory validation confirmed the method's effectiveness in handling voltage discontinuities.

Conclusions:

• The proposed mathematically based approach enhances voltage RMS estimation accuracy in power systems.
• This method is particularly beneficial for applications requiring rapid measurements and handling voltage fluctuations.
• The validated technique offers improved reliability for power system monitoring and control.