Total Harmonic Distortion Measurement For Energy Monitoring Reference Design
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Key Document


The TIDM-THDREADING reference design implements power quality analysis in a three-phase energy measurement system. Power quality monitoring and analysis has an increasingly large role in improving the reliability of the electricity grid. The design measures Total Harmonic Distortion(THD), monitors voltage sags and swells, and measures phase-to-phase angles to help determine phase sequence and prevent accidental phase swapping. Four-quadrant energy measurement is supported for net metering systems with bi-directional energy flow.

  • THD calculated for voltage and current
  • Voltage sag and swell events logged with programmable threshold levels
  • Phase-to-phase angle measurement
  • Four quadrant energy measurement with Class 0.2 accuracy
  • Complete Energy Library with fundamental voltage and current, fundamental active and reactive power, active and reactive energy, Root Mean Square(RMS) current and voltage, power factor, and line frequency

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Part Number Buy from Texas Instruments or Third Party Status

EVM430-F6779 :
EVM430-F6779 - 3 Phase Electronic Watt-Hour EVM



TI Devices (2)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
MSP430F67791A  Polyphase Metering SoC with 7 Sigma-Delta ADCs, LCD, Real-Time Clock, 512KB Flash, 32KB RAM  Microcontrollers (MCU)  Sample & Buy View Design Kits & Evaluation Modules
TPS54060  3.5V to 60V Input, 0.5A Step-Down Converter with Eco-Mode  Step-down (buck) regulators  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
MSP430F67791A Download
TPS54060 Download Download
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Technical documentation

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User guide (1)
Title Type Size (KB) Date
PDF 2672 01 Mar 2016
Design files (5)
Title Type Size (KB) Date
ZIP 323 11 Dec 2015
ZIP 389 11 Dec 2015
PDF 457 11 Dec 2015
PDF 258 11 Dec 2015
PDF 59 11 Dec 2015
More literature (1)
Title Type Size (KB) Date
ZIP 7501 18 Oct 2019
Related Tools & Software

Reference Designs (3)

Name Part Number Tool Type
Class 0.5 Three-Phase Smart Meter Reference Design  TIDM-THREEPHASEMETER-F67641  Reference design 
High Accuracy Three-Phase Electricity Meter with Tamper Detection  TIDM-THREEPHASEMETER-F6779  Reference design 
Three-Phase Metrology With Enhanced ESD Protection and Tamper Detection Reference Design  TIDM-3PHMTR-TAMP-ESD  Reference design 

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