A power analyzer is a multi-functional instrument that integrates multiple functions such as waveform display, harmonic analysis, flicker analysis, and integration in addition to accurate measurement of voltage, current, and power.
The basic function of the power analyzer is a multi-channel high-precision power measurement instrument, which can accurately measure multi-phase high voltage and high current, calculate active power p, reactive power q, apparent power s, power factor, phase, energy accumulation and other parameters, which is usually used to test the efficiency and power consumption of power conversion devices such as frequency converters, inverters, motors and transformers.
With the rapid development of energy conservation and new energy, power analyzers are widely used in the development and performance evaluation of power equipment such as electric vehicles, electrified high-speed railways, solar photovoltaic inverter power generation, wind power generation, motors, transformers, fuel cells, electronic ballasts, energy-saving lamps, switching power supplies, uninterruptible power systems (UPS), power tools, information and office equipment (printers, scanners), home appliances and other power equipment. It is also suitable for monitoring and analyzing the operation quality of the power grid, and providing harmonic analysis and power quality analysis in power operation.
Determined by the function of the power analyzer, on the one hand, the power analyzer needs to complete the measurement of the external input signal, including the voltage and current signals of the device under test, and the signals of the torque speed sensor; On the other hand, the measured data is calculated to obtain parameters such as voltage, current, power, and efficiency, and can process and analyze the input signal, such as harmonic analysis, FFT analysis, and waveform viewing, and can interact with external devices.
The system structure of the power analyzer is mainly composed of a collection board and a motherboard, the acquisition board realizes the acquisition of single-phase input, including a voltage channel and a current channel, and the motherboard mainly realizes the display and communication functions.