New 3U Height 15kVA Grid Simulator Upgrades Testing

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The AC power source has an intuitive touch screen, provides precise measurements and is a comprehensive energy saving solution

Three new models, the 61809/61812/61815 have been added by Chroma to its 61800 series of regenerative grid simulators. These four-quadrant, fully regenerative AC Power Sources at 3U height provides high power density and ratings of 9kVA/12kVA/15kVA respectively. The 3U height form factor occupies less space and provides flexibility for users when configuring their system cabinet or test bench depending on their application.

Chroma 61809/61812/61815 models are regenerative, providing a complete energy-saving solution. The power generated by the DUT during the test can be easily fed back to the grid, rather than dissipated as heat, which protects the environment and lowers the cost of operation. With this capability, the 61809/61812/61815 models can be applied to applications in green energy products, such as PV inverters, energy storage systems (ESS), power conditioning systems (PCS), microgrids, power hardware-in-the-loop (PHIL), electric vehicle power supply equipment (EVSE), onboard charger (OBC) and bidirectional on-board charger (BOBC), etc.

Regulation Testing

For regulatory testing, 61809/61812/61815 models can be applied to IEC 61000-3-2/-3- 3/-3-11/-3-12 (international regulations for AC voltage testing), IEEE 1547/IEC 62116 (international regulations related to green power generation), electric vehicle to grid (V2G) testing, electric vehicle to load (V2L) testing, electric vehicle to home (V2H) testing, energy storage system (ESS) testing.

By using full digital control technology, these models provide a maximum 350VLN output voltage and 30Hz to 100Hz output frequency. The total harmonic distortion rate is less than 0.5 per cent at full load and 50Hz/60Hz output frequency. In addition to AC output, a DC output mode and AC plus DC output mode is included which can be expanded to DC test and AC test with DC bias voltage. The current output capability can provide 3 times the RMS peak current, which is suitable for a DUT input inrush current test.

Precise Measurements

The 61809/61812/61815 models are also able to provide precision measurements such as RMS voltage, RMS current, true power, power factor, current crest factor and many others. By applying advanced DSP technology, they can easily simulate power line disturbance (PLD) using LIST, PULSE and STEP modes. Additional features such as the waveform synthesis function allow users to program various distorted harmonic waveforms required by some regulatory standards.

Waveform Viewer

Also, Chroma 61809/61812/61815 models are equipped with an intelligent touch screen providing users with an intuitive UI to quickly perform multiple settings and operations. Input from the touch screen and rotary knob make it easy to program and observe the input settings. The PLD advanced programming functions are greatly optimised, such as additional tap and swipe operations when programming in the LIST Mode as well as copying and pasting functions when setting sequences, giving users a more intuitive and convenient way of programming similar to operating a smartphone.