PV inverter testing has never been easier

Highly optimized low voltage ride-through test algorithm to improve test efficiency

In the past 10 years, the most serious power quality problem in the world has been voltage sag. Low voltage ride-through means that when the voltage at the grid connection point drops within a certain range, the inverter can maintain grid connection and even provide a certain amount of reactive power to the grid to avoid the grid power supply paralysis caused by continuous grid drops.

The PA6000 power analyzer provides a unique 10ms industry-fastest data refresh rate, successfully breaking through the technical difficulty of half-wave analysis of voltage waveform in low voltage ride-through test, and becoming the only power analyzer that can perform true low voltage ride-through test!

When conducting low voltage ride-through tests, ordinary power analysis must be combined with a dedicated oscilloscope recorder or data acquisition instrument, while PA6000 is the only measurement solution in the industry that can truly achieve low voltage ride-through test data waveform recording and analysis.

PAManager's analysis algorithm has been optimized and has powerful data analysis capabilities. It can perform a complete low voltage ride-through online test and data analysis in as fast as 40 seconds. The test speed is more than twice that of similar software, which can save the certification agency's time spent on repeating data recording and analysis of dozens of different working conditions during low voltage ride-through tests.

Support the latest VDE-AR-N4105 standard automatic test

VDE-AR-N4105 is the low-voltage grid-connected standard for distributed power generation systems promulgated by Germany in 2012. This standard applies to all power stations connected to the low-voltage power grid.

The VDE-AR-4105 standard is increasingly widely used in the certification of the photovoltaic inverter industry. Zhiyuan Electronics provides automated testing solutions for complex test items. PAManger has four automated measurement functions: active power regulation accuracy test, active power fluctuation control test under grid overfrequency, power factor and active power characteristic curve test, and three-phase unbalance maximum amplitude statistical test. The use of automated testing can complete the test work simply, accurately and efficiently, reduce manual operations and improve work efficiency.

Support multiple harmonic measurement standards

IEC61000-4-7 is the only international power quality measurement standard that can accurately measure grid harmonics. The harmonic measurement results obtained by grid-connected equipment (including photovoltaic inverters) in accordance with the measurement method specified in this standard are of practical significance.

VDE-AR-N4105 is a low-voltage power grid-connected operation management regulation promulgated by Germany. It has been enforced in the German photovoltaic inverter industry since 2012 and is currently the most stringent harmonic detection standard in the world.

As the only harmonic measurement solution on the market that supports both IEC61000-4-7 and VDE-AR-N4105 standards, the PA6000 power analyzer can provide the most realistic harmonic measurement results based on IEC standards, and PAManger can provide the most convenient data analysis and report output experience.