Exploring Solar Array Simulator DC Power Supply

Solar array simulator DC power supply by Chroma

Solar Array Simulator DC Power Supply

Chroma 62000H-S

The Chroma Solar Array Simulator reproduces real-world photovoltaic output to test inverters and power electronics with precision. Functioning as a PV array simulator and IV curve simulator, it delivers fast transient response for accurate solar array simulator for inverter testing and MPPT performance evaluation. This photovoltaic array simulator lets engineers validate PV inverter behavior across changing irradiance and temperature conditions.

Power Rating

2kW/5kW/10kW/15kW

Voltage Range

150V/600V/1000V & 1800V

Current Range

0~40, 1500A (System)

This programmable solar array simulator simulates Voc (open circuit voltage) up to 1800V and Isc (short circuit current) up to 30A. The 62000H-S provides an industry-leading power density in a small 3U package. The solar array simulator is highly stable and has a fast transient response design, which is advantageous to MPPT performance evaluation on PV inverter devices.

The Best Solar Array Simulator

The 62000H-S Series has a built-in EN50530 and Sandia’s SAS model that can easily program the Voc, Isc, Vmp, and Imp parameters to simulate different solar cell materials’ I-V characteristic outputs with fast response time. Moreover, the TABLE mode can save a 128~4096 point array of user-programmed voltages and currents via a remote interface. It can easily create a shadowed I-V curve, and the I-V PROGRAM mode can save up to 100 I-V curves and dwell time intervals (1-15,000s) in memory. These advantages provide steady repetitive control conditions required for PV Inverter design and verification testing. The solar array simulator is ideal for the following tests:

  • Design and verify the maximum power tracking circuit and
    algorithm of PV inverter
  • Verify the high/low limit of operating input voltage allowed for
    PV inverter
  • Verify the high/low limit of operating input voltage allowed for
    the inverters maximum power point ‘
  • Verify the static maximum power point tracking efficiency of
    PV inverter
  • Measure and verify the overall efficiency & conversion
    efficiency of PV inverter *
  • Verify the maximum power point tracking performance of the inverter for dynamic curves. (EN50530, Sandia, CGC/GF004, CGC/GF035, NB/T 32004 standard)
  • Verify the maximum power point tracking performance of the inverter under different time period conditions spanning from morning to nightfall
  • Verify the maximum power point tracking mechanism of the inverter for  I-V curve when the solar array is shaded by clouds or trees
  • Simulate the I-V curve under the actual environmental temperatures in a burn-in room for inverter burn-in test

*Requires an extra power meter.
Solar array simulator - PV Inverter Testing diagram

High Speed & Precision Digitizing Measurement

The 62000H-S series has many unique advantages including high speed & precision digitizing measurement circuits with a 100kHz A/D, 25kHz D/A controlled I-V curve and a digital filter mechanism. It can simulate an I-V curve accurately and clear the mains ripple effect from the PV inverter. In addition, the built-in SAS I-V model in the standalone unit can easily program the Voc, Isc, Vmp, and Imp parameters for I-V curve simulation, without a PC controller.

The 62000H-S Series has a built-in 16 bit digital control and precision voltage & current measurement circuits with a voltage accuracy of 0.05% + 0.05% F.S. and a current accuracy of 0.1% + 0.1% F.S. It is ideal for real time MPPT analysis and tracking monitoring for PV inverters through our softpanel. The user can also enable the data recording function on the softpanel during the static MPPT performance test.

IV Curve Simulation

A real solar array is influenced by various weather conditions like irradiation, temperature, rain, and shade by trees or clouds, which will affect the I-V curve output. The 62000H-S is capable of storing up to 100 I-V curves into the simulator memory, with a programmed time interval range of 1-15,000 seconds. It can simulate the I-V curve from the early morning to nightfall for PV inverter testing or dynamic I-V curve transient testing.

More Features

Precision V&I
Measurements

Master/Slave
Parallel Control

Standard Analog
Programming Interface

Fast Transient Response
Solar Array Simulation

When high power solar array simulation is required, it is common to connect two or more power modules in parallel. The 62000HS Series with a current range up to 30A and a voltage range up to 1800V offers a high power density envelope maximum of 18kW in a 3U package.

Model Options

Model Description
62020H-150S Programmable DC Power Supply 150V/40A/2kW with Solar Array Simulator
62050H-600S Programmable DC Power Supply 600V/8.5A/5KW w/ Solar Array Simulator
62100H-600S Programmable DC Power Supply 600V/17A/10KW w/ Solar Array Simulator
62150H-600S Programmable DC Power Supply 600V/25A/15KW w/ Solar Array Simulator
62150H-1000S Programmable DC Power Supply 1000V/15A/15KW w/ Solar Array Simulator
62180H-1800S Programmable DC Power Supply 1800V/30A/18KW w/ Solar Array Simulator
Accessories
A620023 Ethernet Interface (LXI Compliant)
A620024 GPIB Interface
A620025 Ethernet Interface
A620026 Rack Mount Kit
W22 000118 3Phase/4Wire -220Vac Input cord (3AWG/L:3m/R-type terminal)
A620027 Slave Unit (600S/25A/15kW)
A620028 Slave unit (1000S/15A/15kW)
W38 000228 Master to Slave Analog Cable 25pin/40cm [A620027/A620028]
11672 SoftPanels [62000H-S] Solar Array Simulator

Watch

62000H-S Solar Array Simulation

This is a brief video detailing the Solar Array Simulation features of Chroma’s 620000H-S series DC Power Supplies.

Dynamic Shadow I-V Curve Simulation for PV inverter MPPT testing

Latest solar array simulator built-in a dynamic shadow I-V curve simulation function. User can select the PV Module from the database; then set the number of PV module to form a PV Array in series or parallel. Each I-V curve is consists of maximum 4096 data points of voltage and current.

Documentation

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