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STATCOM
Static Synchronous Compensator

Cascaded H-Bridge multilevel converter technology for MV/HV reactive power compensation, voltage stabilization, flicker suppression and harmonic filtering. Up to 160 MVAr. ≤2 ms response. Designed and manufactured by Forte.

6 – 66 kV Up to 160 MVAr ≤ 2 ms response Cascaded H-Bridge Flicker suppression IGBT multilevel
Cascaded H-Bridge topology
≤ 2 ms response
Voltage stabilization ±1%
Up to 160 MVAr
Low harmonic content
Division 03 — Medium Voltage

Next-generation
IGBT-based compensation

The Forte STATCOM (Static Synchronous Compensator) represents the most advanced reactive power compensation technology available — based on voltage source converter (VSC) architecture using cascaded H-Bridge multilevel topology with high-voltage IGBT modules. Unlike traditional SVC systems that rely on large capacitors and reactors, STATCOM uses power electronics to generate reactive power directly, achieving faster response, smaller footprint and wider operating range.

With response times of ≤2 ms — compared to ≥10 ms for conventional SVC — Forte STATCOM systems are the preferred solution for arc furnaces, steel rolling mills, electrified railways, wind farms and utility substations where rapid voltage regulation and flicker suppression are critical.

Forte STATCOM systems are available in both wind-cooled and water-cooled configurations, with indoor, outdoor and containerized installation options to suit any site requirement.

6 – 66 kV Cascaded H-Bridge ≤ 2 ms response Up to 160 MVAr SPWM low harmonics
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STATCOM System
≤2 ms
Full response
time
160 MVAr
Maximum capacity
(typical reference)
50%
Smaller footprint
vs SVC
Technical Specifications

STATCOM — Full Specification

All parameters for Forte STATCOM systems. Every system is custom-designed to match site-specific requirements.

ParameterSpecification
ProductForte STATCOM — Static Synchronous Compensator
TopologyCascaded H-Bridge Multilevel Converter (VSC)
ConnectionDelta connection or Wye connection
Grid voltage6 kV ~ 66 kV direct connection
CapacityUp to 160 MVAr (typical reference capacity)
Response time≤ 2 ms
Power electronicsHV IGBT modules with parallel connection for high power
ModulationSPWM (Sinusoidal Pulse-Width Modulation)
Output waveformNear-sinusoidal multilevel output — very low harmonic content
Cooling — WindForced air cooling with high-reliability metal fans
Cooling — WaterWater cooling with ion exchange tank, water tank and standby pump
Power unitIntensive drawer-type design — IGBT parallel connection, smaller reactor, higher power density
Control systemDigital DSP-based with HMI workstation (Windows + PLC)
RedundancyPower unit bypass function — 4 units per phase, auto-bypass on failure
Current sensingHall current sensors (DC~100 kHz bandwidth) for EAF applications
CommunicationSCADA, Modbus TCP/RTU, IEC 61850
Operating temperature-30°C to +50°C (containerized options for extreme climates)
InstallationIndoor (wind-cooled), outdoor container (wind/water-cooled), indoor (water-cooled)
StandardsIEC 61000, IEC 62271
CertificationsTÜV, CE-LVD, ISO9001, ISO14001, OHSAS18001
Key Features

What Makes STATCOM the Right Choice

Next-generation IGBT-based compensation with unmatched speed, flexibility and power density.

≤ 2 ms Response

Response time of ≤2 ms versus ≥10 ms for traditional SVC. STATCOM can finish the transition from rated capacitive var to rated inductive var in a very short time — ideal for impact load compensation.

Stronger Flicker Suppression

STATCOM can restrain voltage flicker to 2:1 in maximum, achieving 5:1 or even higher. Unlike SVC, STATCOM responds fast enough for high-capacity flicker mitigation.

Wide Operating Range

STATCOM can work from rated inductive power to rated capacitive power. Compared with SVC, the operation range is much wider — and can output rated reactive current even under low system voltage.

Multiple Compensation Functions

Not only fast reactive power compensation, but also harmonic filtering, 3-phase unbalance correction and negative sequence current restraining — all in a single system.

Low Harmonic Content

SPWM technology generates very low harmonics while compensating load harmonics simultaneously. STATCOM becomes a true multifunctional compensator.

50% Smaller Footprint

HV capacitors and reactors are no longer necessary. STATCOM installation area is 50% or less of equivalent SVC capacity — critical for space-constrained substations.

System Architecture

Forte STATCOM Structure — Key Subsystems

Every Forte STATCOM installation consists of four key subsystems working together to deliver fast, precise reactive power compensation.

Power Cabinet

Houses cascaded H-Bridge power units with IGBT modules. Intensive drawer-type design enables high power density and easy maintenance.

Control Cabinet

Digital DSP-based controller with HMI workstation. Handles real-time compensation algorithm, protection and SCADA communication.

Cooling System

Wind cooling (forced air with metal fans) or water cooling (ion exchange tank, water tank, standby pump) depending on capacity and site conditions.

Charging System

Pre-charge and DC bus management system for safe startup and controlled power-up sequence.

Applications

Where STATCOM Is Specified

STATCOM systems are deployed wherever fast response, wide operating range and compact footprint are essential for MV/HV reactive power compensation.

⚡

Electric Arc Furnaces

Primary STATCOM application. Direct connection to EAF bus without converter transformer. Compensates DC components in furnace current for best flicker reduction.

🏭

Rolling Mills

Unsymmetrical industrial loads causing voltage drop, fluctuation and high-order harmonics. STATCOM keeps voltage stable and harmonics low.

⚖

Steel Plants

Comprehensive power quality management for multiple furnaces, ladle furnaces and rolling operations at the same substation.

🚈

Electrified Railways

Single-phase traction loads cause 3-phase unbalance and negative sequence current. STATCOM is the only effective solution for railway substations.

☀

Wind Farms

Grid code compliance, voltage support and reactive power control. Essential for grid interconnection of large wind generation plants.

🔌

Utility Substations

Voltage regulation, transmission capability improvement and transient stability enhancement for 66/110/220 kV substations.

🌊

Long Distance Transmission

Stabilize weak system voltage, reduce power loss, increase transmission capacity and improve transient stabilization limit.

⛏

Coal Mines

Large hoists, draglines and processing equipment with highly variable MV reactive power demand causing voltage dips and fluctuations.

🏯

Cement Plants

Ball mills, kiln drives and large fans at MV with significant reactive power requirements and voltage stabilization needs.

💧

Petrochemical

Large compressor and pump drives at medium voltage. Continuous process environments requiring stable, high-quality power supply.

Ready to specify STATCOM for your project?

Our engineering team will design the optimal STATCOM configuration based on your substation parameters, load profile and grid requirements — at no cost before commitment.

Request a Quote — STATCOM

Our engineering team will contact you within 1 business day. Urgent: +90 850 840 64 24

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