NMEI Center is able to test and inspect MW-level photovoltaic converters and energy storage converters, automotive charging devices of over 500 kW as well as AC and DC charging spot. The new energy & power electronics test system can run low-voltage ride-through and anti-islanding performance tests with the capability for complete performance inspection of new energy & power electronic equipment, thereby enhancing the reliability of product application. New systems of 1MW DC power supply, 2MW Grid simulation source, partial discharge, protocol consistency are also installed for new energy automotive charging spot testing.
NMEI Center can provide testing for the following power electronic products such Variable-frequency drive of 1kV and below, A.C/D.C. charging spot, inverter, converter, SVC, SVG, APF, UPS, DC power supply, converter chain link And other power electronic products.
Testing items include functional inspection, Protocol consistency testing, Insulation test ,electrical performance testing (input overvoltage protection, low voltage ride through, efficiency, temperature rise test, output capacity in operating frequency range, constant reactive power control test, harmonic compensation control test, voltage imbalance test, load capacity test etc.)
|
No |
Product |
Test |
|
1 |
A.C/D.C. charging spot |
input overvoltage protection, Vehicle plug locking function, Protocol consistency，Charging connection controls timing, Disconnect test for connection detection signal, Timing test of charging connection control etc. |
|
2 |
converter |
Charge-discharge conversion time, Constant current charging current ripple, Off-grid switching time, Low voltage ride through etc. |
|
3 |
inverter |
Contact current, Partial discharge, MPPT efficiency, Inversion efficiency, Power factor, Anti-islanding effect etc. |
|
4 |
Variable-frequency drive of 1kV and below |
Insulation resistance measurement, Dielectric strength test, Temperature rise test, Output rated capacity, Output capacity in operating frequency range, etc. |
|
5 |
SVG |
Constant reactive power control test, reactive power compensation control test, power factor compensation control test, harmonic compensation control test, unbalanced compensation control test, etc. |
|
6 |
APF |
Insulation test, Light load test, Load test, Response time measurement, Total harmonic compensation rate test, etc. |
|
7 |
UPS |
Frequency test, voltage imbalance test, dynamic voltage transient range test, voltage phase deviation test, etc. |
|
8 |
DC power supply |
Load capacity test, continuous power supply test, power frequency voltage withstand test and continuous power supply test, etc. |