G6000U Recycled Grid Simulation Power Supply

CowellG6000U Recycled Grid Simulation Power Supply

Product Highlights

1. Single machine supports 3U/18kVA, with small size, light weight, and high space utilization

2. It has AC and DC outputs, supports 650Vdc DC output, and the DC mode current is the same as the AC effective value

3. Support simulating 1ms power grid interruption conditions

4. It has both source and load functions, supports one click switching, and meets the testing needs of multiple scenarios such as optical storage, new energy vehicles, AC/DC charging piles, etc

5. The G6000 series can achieve a single machine power of up to 18kVA, with flexible parallel operation for higher power expansion, and the performance parameters after parallel operation are consistent with those of a single machine

technical indicators

Sine wave mode function

CowellG6000U Recycled Grid Simulation Power SupplySupports AC, DC, and AC+DC output modes, among which AC mode has three-phase linkage/three-phase independent/single-phase operation modes, and can independently set amplitude, frequency, and phase, etc. Its output has multiple operating modes such as step, gradient, pulse, harmonic superposition, high and low voltage crossing, etc; Programming data can be saved and supports import and export.

LIST/STEP/PULSE mode

Equipped with multiple programming output modes such as LIST, STEP, and PULSE, as shown in the figure, STEP and PULSE modes provide single step or continuous voltage fluctuations, simulating power grid interference such as periodic transients, instantaneous high voltages, voltage gradients, etc; Figure 5-8 shows the LIST mode, in which more complex test waveforms can be edited. It supports 10 sets of work step editing, with 20 sequences set for each set, and the work steps can be cyclically set to simulate various voltage transients, interruptions, and variations in waveforms.

Harmonic mode/Interharmonic mode

As shown in Figures 4-11 and 4-12, the harmonic superposition mode supports the superposition of 2-100 harmonics, and can simultaneously superimpose 99 types of harmonics. The harmonic amplitude of each voltage can be set to simulate abnormal power grid environments and test the power grid tolerance of the tested component. The G6000 also supports displaying harmonic content in the software interface and has 30 built-in harmonic voltage waveforms, making it easy for users to call with just one click.

waveform editing

Built in multiple types of waveforms, such as triangular waves, square waves, clipped waves, trapezoidal waves, sawtooth waves, etc. Users can call and display the selected waveform on the touch screen through the upper computer or menu. The different types of waveforms are shown in the following figure. Harmonic analysis function, including voltage harmonic measurement and current harmonic measurement. In harmonic mode, it is possible to achieve voltage and current harmonic distortion factor (THD) and phase difference testing of harmonics on the fundamental wave. In addition, multiple harmonic measurements can be conducted, and the results are displayed in a list format as shown in Figure 4-18, making the analysis of test results more clear at a glance.

Universal communication load

Compatible with universal AC load function, supporting multiple output modes including CR, CC, CP, and PQ, with open power factor and peak factor settings. Multiple combination steps are pre-set through List programming to achieve dynamic loading process of the tested component,Built in up to 14 RLC network models, including R, RL, RC, etc., can flexibly adjust parameters to simulate load characteristics, used to verify the performance of tested components such as inverters and energy storage converters in different load impedance modes. For the off grid testing requirements of PCS, BOBC and other tested components, automatic switching of source load is utilized to effectively simplify the configuration of ATE testing platform, which can meet the full requirements足 V2L、V2GWaiting for testing requirements.