DVC power analyzer Application of PLC in power quality detection of energy storage converter

Power quality test of energy storage converter  

Measure the voltage and current at the AC side of the inverter or converter, and the power analyzer can directly calculate its harmonics, flicker, imbalance and DC components.  

Equipment used:

DEWE3-PA8 

TRION3-1820-POWER-4 

CT-1000 

DEWE3-PA8 integrated host:  

The integrated sensor power supply can be 8 Current sensor supply ； Up to 4 sheets can be added TRION3 -1820-POWER-4 power acquisition card conducts 16 voltage and 16 current tests; The range of high-voltage channel can reach ± 2000Vpeak, and the range of current channel can reach 40Apeak; Test precision: DC ± 0.02% * reading ± 0.02% * range; AC 0.5~1kHz: ± 0.03% * reading without range error; There is no gap storage, and the signal waveform can be viewed without oscilloscope. CT-1000: DC/AC 1000A, basic accuracy:<0.05%

Power quality of energy storage converter Test content  

1 Current harmonic detection power analyzer can directly calculate current harmonic and total distortion rate

2. Voltage harmonic detection power analyzer can directly calculate voltage harmonic and total distortion rate

3 Inter current harmonic detection Power analyzer can directly calculate inter current harmonic

4. Intervoltage harmonics detection Power analyzer can directly calculate intervoltage harmonics

5 The flicker detection power analyzer can directly calculate short-term flicker Pst, long-term flicker Plt, dc, dmax

6 Three phase unbalance detection power analyzer can directly calculate the three-phase unbalance

7 DC component detection Use the formula to extract the element 0 in the harmonic array, which is the DC component