The ADC energy metrology library software package implements various metrology parameters for energy measurement typical of electricity meters, power-distribution units (PDUs), and circuit breakers using high-performance, multichannel analog-to-digital converters (ADCs).
The ADC samples the output of channels at up to 8 kHz to measure the current and voltage of each leg of the AC mains. This software library can achieve high accuracy across a wide-input-current range (0.05 A to 100 A) and supports high sampling frequencies necessary for advanced power-quality features, such as individual harmonic analysis. Using an independent ADC to sample the current-sensor output provides designers greater flexibility in the choice of metrology microcontrollers when compared to application-integrated system-on-chip (SoCs) and dedicated application-specific products.
This software includes hardware abstraction layers to enable communication between an ADC and an Arm® Cortex®-Mx microprocessor (MCU), a library of metrology calculations for energy measurements, and electricity meter example application. The polyphase electricity meter application was developed and tested on an Arm Cortex-M4 MSP432P microprocessor, but can also be ported to other microprocessors using the hardware abstraction layers.
Also included is a Windows® PC GUI to display metrology parameters from the TIDA-010037 and TIDA-010036 reference designs.