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Compared with general-purpose generators, digital variable frequency generators have the advantages of energy saving, low noise, high power, low emission, stable output, and high power quality. It is an upgraded product of traditional general-purpose generators. Digital variable frequency generators are essentially different from traditional generators in terms of their technical composition. Variable frequency generators use power electronic converter technology to evolve the traditional internal combustion engine generator technology into a power electronic power conversion power supply technology, which makes the traditional general-purpose generators to be smaller, lighter, with better power quality, more portable, and quieter. Compared with variable frequency generators, general traditional generators have been updated due to their large size, heavy weight, high noise, and high fuel consumption.

Performance characteristics of the inverter solution for 3-4KW digital variable frequency generator:

> Two/three electrolytic capacitors, double filter inductors

> Single resistor fictitious current

> Industrial grade M0

> Inverter voltage and current double loop control, adaptable to inductive impact load (including air compressor)

> Flexible wireless parallel technology (no-load parallel High success rate)

> Wide auxiliary voltage input, epoxy resin sealant

> Input voltage: IF 300-600HZ three-phase AC (high and low voltage optional)

> Rated power: 2.6kW / 3.5kW

> Controller topology: AC—DC— AC

> Closed-loop control mode: voltage and current double-loop control

> Speed adaptation range: 3000-5000rpm

> Energy-saving and silent requirements, 2-3 times instantaneous overcurrent capability, current inner loop current limiting mode

> Over temperature, bus over/under voltage, overload, Short circuit, over speed (speeding), stepper motor phase short circuit

> Voltage steady-state fluctuation rate: ≤±3%> THD: ≤±2% (resistive rated load), frequency fluctuation: ≤±0.2Hz> Equipped with UART, energy saving Operation, protection cut off, operation indication, overload fault indication function