Regenerative Grid Simulator – 61800

The 61800 Regenerative Grid Simulator is a full 4 quadrant, fully regenerative, AC power supply designed for common electrical product testing such as home appliances and industrial electronics that require a programmable input source. The 61800 is also designed to simulate grid characteristics for testing PV inverters and on-line UPSs. As shown below, power can both sink to and source from the UUT seamlessly to support a multitude of applications. In cases where the UUT sources current, a detection circuit senses excess power and recycles it back to the grid.

The 61800 Regenerative Grid Simulator is also ideal for smart grid and EV related test applications such as Vehicle to Grid (V2G) and Energy Storage System (ESS) testing. The 61800 regenerative grid simulator’s extensive feature set is not limited solely to product development during R&D, they are also valuable during design and quality verification as well as throughout various production stages. Using state-of-the-art digital control technology the 61800 can deliver up to 330VAC at output frequencies ranging from 30Hz to 100Hz. The AC+DC feature allows for applications that require a DC offset bias.

In addition to supplying clean, precise and stable AC voltage for regular applications, the 61800 is capable of simulating various types of distorted voltage waveforms and transient conditions required by product validation testing. These are accomplished as shown below using built-in programmable waveform functions such as LIST, STEP and PULSE modes. The STEP and PUSLE functions allow users to perform single or continuous step changes of output voltage. LIST mode is a more versatile function, and allows users to compose complex waveforms of up to 100 sequences. Voltage waveforms required by immunity specifications such as IEC 61000-4-11 (short interruption and voltage dropout) can easily be achieved by the 61800 Regenerative Grid Simulator.

The SYNTHESIS function allows users to create periodic harmonic voltage waveforms of up to 40 orders based on a 50/60Hz fundamental frequency. The INTERHARMONIC function allows users to perform frequency sweeps ranging from 0.01Hz to 2400Hz on top of the 50/60Hz fundamental frequency. This special function assists users in locating the resonance points.

HARMONICS WAVEFORM INTERHARMONIC WAVEFORM

The 61800 series is 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, the 61800 can easily simulate power line disturbance (PLD) using LIST, PULSE and STEP modes. Additional features such as the waveform synthesis function allows users to program various distorted harmonic waveforms which are required by some regulatory standards. GPIB (IEEE488.2), RS-232, USB and Ethernet interface are available to control the 61800 grid simulator remotely.

Optional Functions

The phase lead/lag mode with phase angle setting ranging from 90 degree ~ -90 degree will simulate the corresponding voltage and current
condition under an inductive or capacitive type load. Please note the current waveform is sinusoidal under the Phase Lead/Lad mode (current, PF
and phase angle as parameter settings) and when the phase angle setting is in the range of 90.1 degree ~ 180 degree (-90 degree ~ -180 degree),
the 61800 will become a current source. The regenerative AC load function is mainly intended for EVSE charging station, hybrid PV inverter, PCS,
UPS, and micro-grid related test applications.

The B618002 120kVA 800VLN XHV option is for achieving high output phase voltage up to 800VLN (1385VLL) by connecting two 61860 in series with
high performance output voltage transient capability which is unmatched by the implementation of step up transformer. The B618002 XHV option
is mainly intended to meet the test requirement of HV PV inverter with line voltage up to 1000VLL.

Need to achieve higher power for micro-grid test environments? We can do the heavy lifting for you. We can ship higher power configurations from 120kVA to 630kVA, single or three phase output. Call or request info now to order your high power solution.