Reference design for a polyphase power meter with a meter accuracy of sophistication 0.5s for lively energy and sophistication 2 for reactive energy measurements.
The meter can calculate varied power parameters together with lively/reactive/obvious energy, energy elements, and harmonic elements.
The MAXQ3183 3-phase power meter reference design from Analog Gadgets affords a complete set of options and specs for correct power measurement and energy monitoring. The reference design relies on the MAXQ3183 polyphase multifunction analog entrance finish (AFE) and MAXQ2000 microcontroller, this design gives a dependable resolution for varied metering functions. The reference design helps 3-phase four-wire techniques and operates at AC circumstances of 50Hz/60Hz, 220V, 9A². It affords a meter fixed of 6400 and achieves a meter accuracy of sophistication 0.5s for lively energy and sophistication 2 for reactive energy measurements. The MAXQ3183 reference design options serial communication with a PC which is supported at baud charges of 1200/9600/57600/115200.
The MAXQ3183 AFE integrates an 8-channel high-accuracy ADC and a digital sign processor (DSP). The DSP processes ADC samples, enabling the calculation of power and power-measurement parameters similar to lively/reactive/obvious energy, energy elements, and harmonic elements. The AFE’s SPI port facilitates seamless communication with a bunch controller. The reference design consists of PC software program for handy analysis and calibration of the meter. The software program helps parameter show and retrieval, together with voltage RMS, present RMS, energy elements, harmonics, and extra. It additionally gives calibration screens for achieve, section angle, and linearity changes. The intuitive graphical interface enhances the understanding and evaluation of metering features.
The reference design includes a measurement board (sizzling board) and a predominant board (chilly board). The new board handles AC-input circuits and hosts the MAXQ3183, whereas the chilly board homes the microcontroller and show. The MAXQ3183 reference design affords a number of benefits, together with help for constructive/adverse power and energy measurements, RMS voltage and present calculations, and impartial present monitoring. It additionally gives options like temperature sensing, section sequence indication, harmonics measurement, and pulse output for added performance. The SPI slave interface simplifies communication, whereas the compact TSSOP package deal enhances area effectivity.
ADI additionally affords two different fashions of polyphase electrical meter that are virtually much like the MAXQ3183. The MAXQ3180 and MAXQ3183 fashions present extra superior capabilities and a wider vary of measurement parameters in comparison with the MAXQ3181, making them appropriate for extra refined power metering functions. MAXQ3181 is totally pin appropriate with the MAXQ3180, and its registers are a subset of the MAXQ3180’s registers.
The three fashions within the MAXQ3180/MAXQ3183 polyphase AFE household have some key variations of their options and capabilities which are talked about beneath:
Options of MAXQ3181:
- Helps lively power and energy measurements solely.
- Doesn’t embody options for reactive power and energy measurements.
- Supplies voltage and present RMS calculations.
- Doesn’t help impartial present monitoring.
- Gives a simplified characteristic set in comparison with the opposite fashions.
Options of MAXQ3180:
- Helps each lively and reactive power and energy measurements.
- Contains voltage and present RMS calculations.
- Helps impartial present monitoring.
- Supplies further options similar to voltage and present harmonics measurement.
- Gives a complete characteristic set for correct power measurement.
Options of MAXQ3183:
- Helps each lively and reactive power and energy measurements.
- Contains voltage and present RMS calculations.
- Helps impartial present monitoring.
- Supplies further options similar to vector sum of currents.
- Contains temperature sensing and section sequence indication.
- Gives probably the most complete characteristic set among the many three fashions.
This reference design has been examined by Analog Gadgets. It comes with required design assets similar to pattern code, schematics, BoM, and so forth. You could find further knowledge in regards to the reference design on the corporate’s web site. To learn extra about this reference design click on right here.
