SDAA502 August   2026 TMCS2100-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Error Measurement
    1. 2.1 Overview
      1. 2.1.1 Measurement Accuracy
        1. 2.1.1.1 Offset Cancellation
        2. 2.1.1.2 Signal Magnitude
    2. 2.2 Balanced Three-Phase Calibration
      1. 2.2.1 Equipment Requirements
      2. 2.2.2 Test Configuration
      3. 2.2.3 Calibration Procedure
    3. 2.3 Crosstalk Matrix Calibration
      1. 2.3.1 Theoretical Foundation
        1. 2.3.1.1 Crosstalk Model
        2. 2.3.1.2 Matrix Population by Single-Phase Excitation
        3. 2.3.1.3 Combined-Field Amplitude Under Balanced Operation
      2. 2.3.2 Equipment Requirements
      3. 2.3.3 Calibration Procedure
      4. 2.3.4 Worked Example
      5. 2.3.5 Runtime Crosstalk Cancellation
        1. 2.3.5.1 Implementation
    4. 2.4 Paired-Phase Injection Calibration
      1. 2.4.1 Theoretical Foundation
      2. 2.4.2 Equipment Requirements
      3. 2.4.3 Calibration Procedure
    5. 2.5 Method Comparison
  6. 3Sensitivity Adjustment Procedure
    1. 3.1 Formula
    2. 3.2 Calculation Example
    3. 3.3 Frequency Compensation Values Adjustment
      1. 3.3.1 Step 1: Convert Frequency Compensation Codes to Error Percentages
      2. 3.3.2 Step 2: Compute New Frequency Compensation Codes
      3. 3.3.3 Calculation Example (Continued for Frequency Compensation)
    4. 3.4 GUI Calculator
  7. 4Troubleshooting
  8. 5Summary
  9. 6References

2.3.1.2 Matrix Population by Single-Phase Excitation

Energizing one bus bar at a time and measuring all three sensor responses yields one column of [S] per test:

Table 2-1
Energized phaseMeasurementsSensitivities determined
A onlyVA,VB,VC at current IA S A A = V A / I A S B A = V B / I A S C A = V C / I A
B onlyVA,VB,VC at current IBSAB=VA/IBSBB=VB/IBSCB=VC/IB
C onlyVA,VB,VC at current ICSAC=VA/ICSBC=VB/ICSCC=VC/IC