PRD Series

Features of performance

Details

Model overview

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Bidirectional DC power supply
Regenerative in load operation
30 kW in 3 U
Output voltage max. 2000 V
Output current max. 667 A
Operating modes CV, CC, CP, CR
8.8’ touchscreen with high aspect ratio
High dynamics
High accuracy
Up to 100 devices can be connected in parallel
Delay-free transition of the current directions source <-> sink
Function generator with sine, triangle, pulse and square wave superimposition
Programmable waveforms with import and export function
PV simulator
Battery simulator

Waveform display Test objects: Applications: Testing of PV inverters, energy storage systems, solar panels, battery simulation

Description

The PRD series bidirectional DC power supply is a programmable power supply with source and load functions, automatic 2-quadrant operation and the ability to absorb energy from the DUT and return it to the mains.

High power density

A solar array simulator is characterised by a high power density such as:

Power levels of up to 30 kW in a 3U enclosure
Weight of just 35kg, with a single standard 42U rack capable of accommodating 300 kW capacity
Efficiency of 95%
Significantly reduced test footprint, meeting commercial office transport, portability and distribution requirements

Ultra-high accuracy

The PRD series HV power supply offers output voltage accuracy of up to ±0.02% F.S. In addition, the DC power supply module has an integrated, independent, high-precision voltage and current measurement system that offers performance comparable to that of a 6½-digit digital multimeter. This configuration saves costs associated with high-voltage and high-precision DC voltmeters, high-precision current meters, power meters and impedance meters, and increases test efficiency while reducing test costs.

High dynamics

The rise time of the bidirectional DC power supply from 10 % to 90 % is only 500 µs, which is significantly faster than similar products. When the source load transitions from -100 % to 100 %, the PRD variable high-voltage supply achieves consistent results with minimal overshoot in just 1 ms.