System Interconnection Inverter
Power Converter
Motor
VF66GSystem Interconnection Inverter
The VF66G inherits the extensive range of applications and customization functions of the VF66B, making it a highly-efficient inverter capable of delivering clean distributed power supply.
Features and Functions
Harmonic Suppression with Instantaneous Distortion Minimization Control (System Interconnection Mode)
Adopting Toyo Denki's proprietary control method (instantaneous distortion minimization PWM modulation method) has resulted in harmonic current suppression, with total current distortion ratio of 5% or less.
Islanding Detection System Compatible with FRT Requirements (System Interconnection Mode)
The VF66G inverter is equipped with a new islanding detection system compatible with FRT requirements (continued running required following accident).
Suppression of Voltage Fluctuations with Reactive Power Output Control (System Interconnection Mode)
By making adjustments within the inverter range, it is possible to control reactive power output with advance and delay commands.
Generator Interconnection (Droop Mode) Support (Governor Mode)
Diesel generators for ships run under governor control, and equipping the VF66G with a governor control mode has made it possible to run in parallel with diesel generators. Governor control mode has frequency and voltage droop characteristics.
System Interconnection Mode and Independent Operation Mode Switching Function
The mode can be switched smoothly with only a switching signal without having to change settings.
Specifications
| Operation modes | System interconnection mode / Independent operation mode | Governor control mode |
|---|---|---|
| Capacity | 200 V class: 50 to 180 kW 400 V class: 50 to 1,000 kW | |
| AC output voltage | 200 V class: 200 to 220 V 400 V class: 400 V to 440 V | 200 V class: 200 to 220 V 400 V class: 440 V to 500 V |
| DC voltage range | 200 V class: 300 to 340 V 400 V class: 600 V to 680 V | 200 V class: 350 V 400 V class: 700 V |
| Control system | Instantaneous distortion minimization PWM system | Triangular wave comparison PWM system |
| Output frequency | 50/60Hz | 60Hz |
| Output frequency accuracy | ±3% or less | ±5% or less (stabilization) |
| Relative harmonic content | Current distortion (in system interconnection mode): 5% overall, 3% or less eachVoltage distortion (in independent operation mode): 5% or less | Voltage distortion: 5% or less |
| Network | OPCN-1 CC-Link | RS485/422 |
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