RE&D STATCOM

1200 – 3600 kvar · 3 – 35 kV · 3-level IGBT

Modular three-level IGBT STATCOM built from ±600 kvar power modules, up to six per system. Response typically 10–40 ms, fault ride-through to 250 ms, optional active filter across the 2nd–51st harmonic, air or liquid cooled.

Modular 3-level IGBT platform built from ±600 kvar power modules, 2 to 6 per system
Compensation from 1200 kvar to 3600 kvar at 3 kV – 35 kV with matching transformer
Response time application-dependent, typically 10 – 40 ms
Faults of up to 250 ms duration do not cause the STATCOM to shut down
Losses < 2.1% of compensation maximum, < 1.8% in typical operation, < 0.4% at idle
Redundancy at both power module and individual IPU level

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Overview

RE&D STATCOM provides dynamic capacitive and inductive reactive power compensation for voltage stabilisation, power factor correction and load-flow optimisation in public and industrial medium-voltage distribution networks. It is based on a scalable power electronics platform with 3-level IGBT inverters.

The platform is built from IGBT power units (125 A, up to 690 V) combined in cabinets to form ±600 kvar power modules. Up to six modules make a complete system of ±3600 kvar, with an integrated control cabinet and circuit breaker, connected to the network through a matching transformer.

A voltage source converter sources or sinks reactive current continuously and within milliseconds, with no switching steps, no resonance risk with the network, and full rated output retained at reduced network voltage.

Specifications

Electrical

Rated voltage: 3 kV – 35 kV with matching transformer
Grid frequency: 50 Hz / 60 Hz
Compensation: 1200 kvar | 1800 kvar | 2400 kvar | 3000 kvar | 3600 kvar
Number of power modules: 2 | 3 | 4 | 5 | 6 (each ±600 kvar)
Rated current (690 V): 1000 A | 1500 A | 2000 A | 2500 A | 3000 A
IGBT power unit (IPU): 125 A rated current, up to 690 V rated voltage
Inverter: 3-level IGBT with voltage intermediate circuit (DC film capacitors)
Switching frequency: 10 kHz (low-loss design)
Power loss, active part: < 2.1% of the compensation maximum; < 1.8% during typical operation; < 0.4% at idle; < 100 W in standby
Regulating functions: Voltage regulation; reactive power regulation
Optional active filter (ACF): 2nd–51st harmonic (50 Hz) / 2nd–41st harmonic (60 Hz)

Performance

Response time: Application-dependent, typically 10 – 40 ms
Fault ride-through: Faults of up to 250 ms duration do not cause the STATCOM to shut down
Redundancy: At power module level and at individual IPU level

Control & interfaces

Control: Internal control computer with two digital signal processors
System setup and display: HMI with graphical display, or internal web server (TCP/IP) and PC, no additional software required
Interfaces: Ethernet (TCP/IP); fieldbus systems including Profibus and Modbus; potential-free configurable digital I/O for status message
Logging: Logs saved to SD card for export

Cooling & enclosure

Cooling: Standard: air cooling with variable-speed fans. Optional: liquid cooling with connection to an external cooling system
IP degree of protection: Standard: IP20. Optional: IP21 .. IP54
Colour: Standard: RAL 7035 light grey (other colours and designs on request)
Max. ambient temperature without power reduction: 40 °C
Recommended ambient temperature (continuous operation): < 25 °C
Minimum operating temperature: 0 °C
Relative humidity: Maximum 95%
Transport / storage temperature: −20 °C .. 70 °C

Physical

Power module dimensions (approx. W × D × H): 800 × 800 × 2000 mm; 800 × 800 × 2200 mm with optional base
Active part, 1200 kvar (2 modules): 2200 × 800 × 2000 mm (W × D × H); approx. 1700 kg
Active part, 1800 kvar (3 modules): 3000 × 800 × 2000 mm (W × D × H); approx. 2400 kg
Active part, 2400 kvar (4 modules): 3800 × 800 × 2000 mm (W × D × H); approx. 3100 kg
Active part, 3000 kvar (5 modules): 4600 × 800 × 2000 mm (W × D × H); approx. 3880 kg
Active part, 3600 kvar (6 modules): 5400 × 800 × 2000 mm (W × D × H); approx. 4500 kg
Expandability: 2-winding transformer: up to 6 power modules. 3-winding transformer: up to 2 × 6 power modules (7.2 Mvar)

Standards

Designed and built to: EN 50178, EN 61439-1, EN 61439-2, EN 61000-6-2, EN 61000-6-4, EN 55011
EMC class: EN 55011, Class A1 (industrial environment)