TIDA-01088
Multi-Phase Power Quality Measurement with Isolated Shunt Sensors Reference Design
TIDA-01088
Overview
The TIDA-01088 reference design implements power quality parameter measurement in a polyphase energy measurement system. Total harmonic distortion (THD), fundamental readings, and standard metrology parameters such as active and reactive energy and power are calculated. Phase to phase angles are also calculated to help prevent incorrect installation of the system. This design uses isolated shunt current sensors to maintain accuracy in harmonic analysis and also immunity from magnetic tamper attacks.
Features
- Class 0.5% Three-phase metrology with galvanically isolated shunt current sensors
- Isolation performance of up to 1-kV AC (working voltage) and 7 kV (Peak)
- Total Harmonic Distortion (THD) calculated for Voltage and Current
- Voltage Sag and Swell events logged with programmable threshold levels
- Phase to Phase angle measurement for determining phase sequence to help prevent incorrect installation of system
- 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
Design files & products
Design files
Download ready-to-use system files to speed your design process.
TIDUBO7A.PDF (9378 K)
Reference design overview and verified performance test data
TIDRLM7.PDF (97 K)
Detailed schematic diagram for design layout and components
TIDRLM8.PDF (250 K)
Complete listing of design components, reference designators, and manufacturers/part numbers
TIDRLN0.ZIP (350 K)
Files used for 3D models or 2D drawings of IC components
TIDCC52.ZIP (289 K)
Design file that contains information on physical board layer of design PCB
TIDRLM9.PDF (374 K)
PCB layer plot file used for generating PCB design layout
Products
Includes TI products in the design and potential alternatives.
Isolated ADCs
AMC1304M05 — Reinforced Isolated Modulator With LDO Regulator, ±50mV Input, and CMOS Interface
Data sheetDigital isolators
ISO7320C — Low-power, dual-channel, 2/0, 25-Mbps digital isolator
Data sheetDigital isolators
ISO7321C — Low-power, dual-channel, 1/1, 25-Mbps digital isolator
Data sheetLinear & low-dropout (LDO) regulators
TPS763 — 150-mA, 10-V, low-dropout voltage regulator with enable
Data sheetMSP430 microcontrollers
MSP430F67641 — Low-cost polyphase metering SoC with 3 Sigma-Delta ADCs, 10-bit SAR ADC, LCD, 128KB Flash, 8KB RAM
Data sheetRS-232 transceivers
TRS3232 — 3- to 5.5-V dual channel 250kbps RS-232 line driver/receiver with +/-15-kV ESD protection
Data sheetTransformer drivers
SN6501 — Low-noise, 350-mA, 410-kHz transformer driver for isolated power supplies
Data sheetStart development
Technical documentation
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| Type | Title | Date | |
|---|---|---|---|
| * | Design guide | Multi-Phase Power Quality Measurement With Isolated Shunt Sensors Design Guide (Rev. A) | Jul. 26, 2016 |
| Technical article | Quantifying harmonic distortion - Effect of sinc3 filter roll off (part 3) | Aug. 07, 2017 | |
| Technical article | Quantifying harmonic distortion: Estimating THD without performing a full FFT operation | Sep. 26, 2016 | |
| Technical article | Quantifying harmonic distortion: Options for calculating THD | Aug. 19, 2016 |
Related design resources
Reference designs
REFERENCE DESIGN
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