Energy Storage Converter Testing Solutions

   Overview
    In recent years, the energy storage industry has went through a rapid growth. With policies support and rising demand, the amount of energy storage projects is greatly increased. Manufacturers, end users, investment and financing institutions enter energy storage applications market actively. As a relatively new industry, energy storage converter testing method is lagging behind. To enter the international and domestic markets, we must meet certain testing standards. Focus on this demand and based on our state-of-the-art storage converter technology, we designed testing systems especially for energy storage converter, which has been widely used in certification labs, scientific R&D, enterprises R&D, productions and routine maintenance testing.

   Solutions

Testing System Diagram

Applications
    Testing and certification labs.
    Manufacture, product acceptance and routine maintenance testing.
    Enterprises and research institutions R&D.
    Universities electrical laboratory.

Features
    Multiple functions to meet relevant standards of converter testing.
    Simple and high intelligent test platform.
    High system integration level, cost-effective.
    Professional converter software and hardware design, easy operation.

Applicable Models: PV Simulator (PVS50)  Grid Simulator (GDS50) Battery Tester and Simulator (BTS50)


    PV Simulator

Main Test Functions
Design and verify maximum power tracking route and calculation mechanism of inverter.
Verify inverter input voltage upper and lower limit.
Verify inverter input voltage upper and lower limit at peak power.
Verify inverter static maximum power tracking efficiency.
Measure and verify inverter overall and conversion efficiency percentage.
Verify maximum power tracking performance of the inverter dynamic curve changes.
Verify Inverter maximum power tracking performance from morning to evening.
Verify Inverter maximum power tracking mechanism I - V curves of the solar cell under cloud or tree shadow.

Product Features
Solar array I - V curve simulation function.
Precise voltage and current measurement.
With constant power and constant resistance mode.
Able to simulate I - V curves when solar panels are under shadows.
Able to simulate different radiation and temperature I - V curves.
Complete protection functions like over-voltage, over-current, overload, short circuit, current limiting, voltage limiting and over-temperature protection, etc.

Datasheet

Model

PVS50

Output

Output Voltage

0-750V

Output Max. Current

200A

Output Max. Power

50kW

Setting Items

Voltage Regulation

0-100% adjustable rated voltage

Current Regulation

0-100% adjustable rated current

Power Regulation

0-100% adjustable rated power

Setting Accuracy

Voltage

0.8%FS

Current

1%FS

Power

1%FS

Measurement Accuracy

Voltage

0.5%FS+5dgt

Current

0.5%FS+5dgt

Power

0.5%FS+5dgt

Others

Ripple

0.8%FS of voltage

Power Regulation

0.1%FS

Voltage Resolution

1000:1V VO < 1000:0.1V

Current Resolution

Output I0 < 1A, resolution 0.001A
10A Output I0 < 100A, resolution 0.01A

Power Resolution

Power < 10kW, resolution < 1W
Power 10kW, resolution < 0.1kW

Display

Touch screen

Data Storage

9 sets of data storage, each set store voltage and current values independently, easy and quick adjustable.

SAS Model

Simulates different solar panel I-V curves

Current Limit Setting

0-Max current

Voltage Limit Setting

0-Max voltage

Protection

Over-voltage, over-current, Over-temperature, short circuit

Cooling

Forced air

Operation Temperature

0-40C

IP Grade

IP20

Relative Humidity

0-95% (non-condensing)

Altitude Limit

4000m

Weight

650kG

Dimensions (W *H *D)

1000*1750*800mm


   Grid Simulator
Main Test Functions

Grid voltage anomaly test.
Grid frequency anomaly test.
Anti-islanding test.
Low voltage ride through test.
Immunity test, voltage variation immunity test.
Limit test, current harmonic test.


Product Features
Energy recycle, with 100% rated current recycle capability.
Three-phase voltage, adjustable phases and frequency.
Support LIST, STEP, PULSE mode settings, execute up to 30 groups of different voltage, frequency, time pre-setting.
Complete protection functions, with over-voltage, over-current, overload, short circuit, current limiting, voltage limiting and over-temperature protection.
Measurement accuracy up to 0.1%.
Provide intelligent PC monitoring system.

Datasheet

Model

GDS50

AC Output

Wiring

3P4W

Max. Output Power

50kVA

Output Power per Phase

16.7kVA

Voltage

Range

0-520Vac

Accuracy

0.1%+0.2%F.S.

Resolution

0.1V

Distortion

< 0.5% @ 50/60Hz
< 0.8% @ 30Hz~100Hz

Power Regulation Rate

0.10%

Load Regulation Rate

0.20%

Max. Current Per Phase

RMS

75A

Peak

225A

Frequency

Range

30Hz-100Hz

Accuracy

0.01%

DC Output

Power

7.5kW

Voltage

424V

Current

37.5A

Harmonic Synthesis Function

Harmonic Range

Editable any harmonic between 1-49 times

Input Side

Voltage Range

3380V-400V, 47-63Hz

Current

190A Max./Phase
(3200-220 10%VLL)
100A Max./Phase
(3380-400 10%VLL)
87A Max./Phase
(3440-480 10%VLL)

PF

0.99

Measuring Voltage

Range

0-300V

Accuracy

0.1% + 0.2%F.S.

Measuring Current

Range (Peak)

225A

Accuracy (Peak)

0.4% + 0.3%F.S.

Accuracy (RMS)

0.4% + 0.6%F.S.

Measuring Power

Accuracy

0.4% + 0.4%F.S.

Other

Efficiency

94.50%

Protection

Over voltage, over current, overload, over temperature, short circuit protections etc.

Weight

650kg

Dimensions (W * H * D)

1350*1750*1000mm

 
 
   Battery Charge and Discharge Testing Modules & Simulator
Main Test Functions
Battery voltage anomaly test.
Charge and discharge characteristics simulation test of different batteries.
Battery charge management test.
Battery SOC prediction management test.
Simulation BMS communication function.



Product Features
Support output modes like CCCV, DC programming, battery simulation etc.
Built-in a variety of battery simulation characteristics curve.
Equipped with high-speed digital control technology, sampling accuracy up to 0.1%.
Four quadrant control technology, energy feed back to grid design, energy-saving and high efficient.
With dynamic current charging and discharging analog functions.


Datasheet

Model

BTS50 (Typical Model)

DC Output

Rated Power

50kW

Peak Power

75kW

Output Voltage

24V-400V

Rated Voltage

250V

Rated Current

200A

Peak Current

300A

AC Input

Voltage

380V 10%

Frequency

50 5Hz

Wiring

3P3W

Power Factor

0.99

THD

3%

DC Characteristics

Output Accuracy

0.1%F.S

Ripple

0.2%F.S

Response Time

5ms (10%-90% sudden load)

Feedback Features

Voltage Range

AC 342V-420V

Frequency Range

45Hz-55Hz

Power Factor

0.99

THD

3%

Switching Time

10ms (+90%--90% switching)

Other

Efficiency

94.50%

Protection

Over-voltage, over-current, over-temperature, short circuit

Cooling

Forced air

Operating Temperature

0C - 40C

IP Grade

IP20

Relative Humidity

0-95% ( non-condensing)

Altitude Limit

4000m

Weight

650kG

Dimensions (W * H * D)

1350*1750*1000mm

Communication

RS485, CAN