⁠Statcom

STATCOM – Smart Power for a Stable Grid

The PurityElec Static Synchronous Compensator (STATCOM) is an advanced reactive power compensation system designed to improve voltage stability, enhance power quality, and support dynamic grid performance. Using cutting-edge power electronics, our STATCOM delivers fast, precise, and continuous reactive power control for modern power networks.
statcom

Key Features

• Dynamic Voltage Regulation – Maintains stable grid voltage during load variations and faults.
• Fast Response Time – Reacts within milliseconds to compensate for reactive power changes.
• Harmonic Filtering – Reduces distortion and improves overall power quality.
• Scalable & Modular Design – Flexible configurations for medium- and high-voltage applications.
• High Efficiency – Low system losses with advanced IGBT/VSC technology.
• 24/7 Reliability – Built for continuous operation in demanding grid environments.

Applications

• Power Transmission & Distribution – Voltage support and reactive power compensation.
• Renewable Energy Integration – Stabilizes voltage for wind farms, solar plants, and hybrid systems.
• Industrial Facilities – Improves power factor and reduces energy penalties.
• Railway Electrification – Maintains voltage stability in traction power supply systems.
• Grid Code Compliance – Meets local and international power quality standards.

Technical Specifications
Voltage Range 3.3kV – 765kV systems
Reactive Power Capacity ±5 Mvar to ±250 Mvar
Response Time < 20 ms
Control Technology Voltage Source Converter (VSC) with IGBT
Cooling Options Air or liquid cooling
Standards Compliance IEEE, IEC, and national grid codes

Benefits with PurityElec STATCOM

✔ Better Grid Stability – Handles voltage dips, sags, and surges in real time
✔ Improved Power Quality – Minimizes flicker and harmonics
✔ Optimized Energy Use – Enhances power factor, lowering costs
✔ Custom Engineering – Tailored solutions for utility, renewable, and industrial needs

Frequently Asked Questions

  • Q1. What is a STATCOM?
    STATCOM is a power electronic device that provides fast-acting reactive power compensation to stabilize voltage, improve power factor, and enhance power quality in electrical networks.
  • Q2. Why is STATCOM used?
    • • To maintain stable voltage in transmission and distribution systems
    • • To improve system reliability and reduce voltage flicker
    • • To provide dynamic reactive power support for large or fluctuating loads
  • Q3. How is STATCOM different from traditional solutions?
    Unlike passive compensators or capacitor banks, STATCOM:
    • • Responds within milliseconds
    • • Provides both capacitive and inductive reactive power
    • • Works effectively under varying load and harmonic conditions
  • Q4. How does a STATCOM work?
    It uses a Voltage Source Converter (VSC) with IGBTs to generate a controllable AC voltage. By controlling the magnitude and phase of this voltage relative to the grid, STATCOM can inject or absorb reactive power.
  • Q5. Can STATCOM regulate both voltage and power factor?
    Yes. It maintains grid voltage and also supports reactive power compensation, indirectly improving power factor.
  • Q6. How fast does STATCOM respond?
    STATCOM responds in milliseconds, much faster than traditional SVC or capacitor banks.
  • Q7. Where is STATCOM typically installed?
    • • Transmission and distribution substations
    • • Industries with heavy and fluctuating loads (steel, aluminum, cement)
    • • Renewable energy plants (wind farms, solar farms)
    • • Airports, railways, and data centers
  • Q8. Can STATCOM handle harmonics?
    STATCOM primarily compensates reactive power and stabilizes voltage. For harmonic mitigation, it can be combined with Active Harmonic Filters (AHF) in modern systems.
  • Q9. Is STATCOM suitable for long-term load variations?
    Yes. STATCOM handles both short-term voltage dips and long-term reactive power needs efficiently.
  • Q10. What are the key benefits of STATCOM?
    • • Fast voltage regulation (milliseconds)
    • • Bidirectional reactive power support (leading & lagging)
    • • Compact and modular design compared to SVC
    • • Improved system stability and reduced flicker
    • • Minimal maintenance compared to rotating machines
  • Q11. How is STATCOM better than SVC (Static Var Compensator)?
    Feature STATCOM SVC
    Response time Milliseconds Seconds
    Voltage support Excellent at low voltage Limited at low voltage
    Size & footprint Compact Larger
    Efficiency Higher Moderate
    Maintenance Low Moderate
  • Q12. Which standards govern STATCOM design and operation?
    • • IEEE 519 (Harmonics)
    • • IEC 61000 series (Power Quality & EMC)
    • • Local grid code requirements for reactive power support