The ADE9430 from Analog Devices is a highly accurate, fully integrated, polyphase energy and power quality monitoring device. Superior analog performance and a digital signal processing (DSP) core enable accurate energy monitoring over a wide dynamic range. Featuring an integrated high-end reference, the ADE9430 ensures low drift over temperature with a combined drift of less than ±25 ppm/°C maximum for the entire channel including a programmable gain amplifier (PGA) and an analog-to-digital converter (ADC).
The ADE9430 offers a complete power quality monitoring capability by providing instantaneous total as well as fundamental measurements on rms, frequency, phase angle, power factor active, reactive, and apparent powers and energies. Using the optional ADSWPQ-CLS Power Quality Library, advanced power quality features, such as dip and swell monitoring, power frequency, voltage total harmonic distortion (VTHD), and current total harmonic distortion (ITHD), are enabled. The one cycle rms, 10 cycle rms/12 cycle rms, and the optional ADSW-PQ-CLS Power Quality Library features are calculated according to IEC 61000-4-30 Class S.
ADE9430 System Diagram
The ADE9430 generates a resampled waveform of 1024 points per 10 cycles or 12 cycles, resampling simplifies the fast Fourier transform (FFT) calculation of at least 40 harmonics in an external processor.
The ADE9430 simplifies the implementation and certification of energy and power quality monitoring systems by providing tight integration of acquisition and calculation engines. The integrated ADCs and DSP engine calculate various parameters and provide data through user accessible registers or indicate events through interrupt pins. With seven dedicated ADC channels, the ADE9430 can be used on a 3-phase system or up to three single-phase systems. This device supports current transformers (CTs) or Rogowski coils when used with external analog integrator for current measurements.
Overview of the ADE9430 pre-certified class S power quality monitoring solution
The ADE9430 absorbs most of the complexity in calculations for a power quality monitoring system. Combining a simple host microcontroller and the optional ADSW-PQ-CLS Power Quality Library, the ADE9430 enables the design of standalone monitoring or protection systems, or low-cost nodes uploading data into the cloud.
Evaluation Board
To help developers explore all the features of the ADE9430 device and to accelerate time to market, Analog Devices has also developed the EVAL-ADE9430ARDZ evaluation board for use with the STM32 NUCLEOF413ZH. The evaluation board can be directly interfaced with current transformers and voltage leads and enables quick evaluation and prototyping of energy and Class S power quality measurement systems with the ADE9430. The ADSW-PQ-CLS Power Quality Library and application examples are provided to simplify implementation of larger systems.
The ADSW-PQ-CLS Power Quality Library licensed software works in conjunction with the ADE9430 IC to meet IEC 61000-4-30 Class S power quality requirements. First, secure the ‘Evaluation’ version of the Software Library, which is intended to be used with the evaluation kit EVAL-ADE9430. The software is initially provided in a compiled form, and you can get the ‘Production’ version with the source code once the evaluation is successfully completed. The software can then also be ported to other platforms.
The ADE9430 is suitable for a range of power quality monitoring applications including Energy and power monitoring, Standards compliant power quality monitoring, Protective devices, Machine health, Smart power distribution units and Polyphase energy meters.
Anglia are offering customers a FREE evaluation board and samples of the ADE9430 highly accurate, fully integrated, polyphase energy and power quality monitor from Analog Devices, please fill in the form below to register your interest now.
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