Regenerative Grid Simulators Test On-grid Products

November 17, 2013. Chroma Systems Solutions, a provider of power conversion testing equipment and automated systems, has announced the release of its 61800 Regenerative Grid Simulator. The 61800 is a full 4-quadrant, fully regenerative, AC power source with advanced features satisfying rigorous regulatory standards testing as well as design and verification testing throughout the product development cycle.

The 61800’s power can both sink and source from the UUT seamlessly. In cases where the UUT sources current, a detection circuit will sense the excess power and recycle it back to the grid. Designed to simulate grid characteristics, the 61800 is suitable for testing PV inverter, on-line UPS, Smart Grid, Vehicle to Grid (V2G), and Energy Storage System (ESS) applications as well as common electrical product testing such as home appliances and industrial electronics requiring a programmable input source.

The 61800 Regenerative Grid Simulator is currently offered in two models: 45 kVA and 60 kVA. Its feature set boosts state-of-the-art digital control technology and can deliver up to 300 VAC at output frequencies ranging from 30 Hz to 100 Hz. The AC+DC feature allows for applications that require a DC offset bias. In addition to supplying clean, precise, and stable AC voltage, the 61800 is capable of simulating various types of distorted voltage waveforms and transient conditions required by product validation testing.

The Synthesis function allows users to create periodic harmonic voltage waveforms of up to 40 orders based on a 50/60-Hz fundamental frequency. The Inter-harmonic function allows users to perform frequency sweeps ranging from 0.01 Hz to 2,400 Hz on top of the 50/60-Hz fundamental frequency. This special function assists users in locating the resonance points. The 61800 series is also able to provide precision measurements such as RMS voltage, RMS current, true power, power factor, and current crest factor. By applying advanced DSP technology, the 61800 can simulate power line disturbance (PLD) using LIST, PULSE, and STEP modes. RS-232, USB, and Ethernet interfaces are available to control the 61800 grid simulator remotely.

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