F3E unità rigenerativa inverter

Bidirectional Converters F3E: Catalogue

Bidirectional Converters F3E

The demand for regenerative IGBT "rectifiers" has led to the development of F3E and AFE bidirectional converters with rectifying capabilities and network recovery capacity.
The F3E bidirectional converter is a Fundamental frequency front-end regenerative unit - identified by the SDF code.
It's a regenerative power module solution where the AC/DC converter uses diodes inside the IGBT modules to supply the DC bus, while the IGBTs are used during regenerative operation.

SECOM has created a series of IGBT bidirectionals converters for these specific applications with particular attention to the development of converters in the 100kW-8MW range at 400 and 690Vac.

The main advantages of using F3E regenerative power supplies are:

  • Economic advantages of a low cost regenerative system
  • High module power density, thanks to the low module losses.
  • Further cost reduction of the filter (three-phase inductance), compared to the LCL filter for AFE system
  • Modular wheeled-mounted system for easy installation and maintenance.

Technical data
Electrical data
AC line input voltage (Vin) 380V ÷ 480V (± 10%)
500V ÷ 690V (± 10%)
AC line output voltage (Vout) - first harmonic 0 ÷ Vdcp / √2
0 ÷ Vdcp*0.86
DC voltage trip treshold (Vdctrip) 820V per SDx.x.x.x.400
1200V for SDx.x.x.x.690
Input frequency range 45 ÷ 65Hz
Output frequency rangeFor motor application: 0 ÷ 500 Hz (@5kHz of switching frequency)
Interface DPM power supply 24Vdc @ 1A without analog supply
STO N.2 channels 24Vdc - 20mA for each channel
Fan power supply 400V; 3AC - 50/60HZ
Ambient condition
Altitude Up to 2000m a.s.l. without derating (>2000m with derating)
Room temperature 0°C ÷ 40°C without derating (40°C ÷ 60°C with derating)
Pollution degree 2
Relative humidity Max 95% in normal conditions
Safety functions
STO SIL 3 PL e - Category 3
Mechanical data
Vibration stress EN 60721-3-3 Class 3M1 compliant; EN 60068-2-6
Shock EN 60068-2-27 compliant
Cooling systemForced air with internal fan (water cooled on request)
WeightUp to 178kg

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