A DRPC is a device that dynamically injects or absorbs reactive power in an electrical network to maintain voltage stability, improve power factor, and enhance overall power quality.
Dynamic Reactive Power Compensator
Dynamic Reactive Power Compensator (DRPC) – Precision Power Factor & Voltage Stability
The PurityElec Dynamic Reactive Power Compensator (DRPC) is an advanced solution for real-time reactive power management, power factor correction, and voltage stabilization in electrical grids and industrial networks. Using fast-response power electronics, our DRPC dynamically injects or absorbs reactive power, improving system efficiency, reducing losses, and ensuring grid code compliance.
Key Features
• Real-Time Reactive Power Control – Millisecond-level response to fluctuating load conditions.
• Enhanced Power Quality – Minimizes voltage fluctuations, harmonics, and flicker.
• Automatic Power Factor Correction – Maintains optimal power factor under varying loads
• Scalable & Modular – Multiple units can be paralleled for higher capacity.
• Wide Operating Range – Supports medium and high-voltage applications.
• Low Maintenance – Solid-state design with minimal moving parts for higher reliability.
Applications
• Industrial Facilities – Steel plants, cement factories, manufacturing units.
• Renewable Energy Integration – Wind farms, solar plants, hybrid systems.
• Power Transmission & Distribution – Grid voltage regulation, reactive power support.
• Commercial Complexes & Data Centers – Stable voltage and high energy efficiency.
• Electric Rail Systems – Load balancing and reactive power compensation.
| Technical Specifications | |
|---|---|
| Rated Power | 0.5 Mvar – 50 Mvar (scalable) |
| Response Time | < 50 ms |
| Control Method | DSP-based real-time control |
| Harmonic Performance | THD < 3% |
| Operating Voltage | 400V to 35kV (via transformer interface) |
| Cooling | Forced air or liquid cooling options |
| Compliance | IEC 61000, IEEE 519, CE certified |
Benefits of PurityElec DRPC
✔ Reduces electricity bills by minimizing reactive power penalties
✔ Improves voltage stability and equipment lifespan
✔ Increases grid and plant energy efficiency
✔ Complies with utility and regulatory standards
✔ Optimized for both new installations and retrofits
Experience the Future of Reactive Power Management
At PurityElec, we combine advanced control algorithms with robust hardware design to deliver a Dynamic Reactive Power Compensator that keeps your power systems stable, efficient, and compliant.
Frequently Asked Questions
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Q1. What is a Dynamic Reactive Power Compensator (DRPC)?
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Q2. Why is reactive power compensation important?Reactive power compensation:
- • Prevents voltage drops
- • Reduces losses in transformers and cables
- • Improves power factor
- • Enhances reliability and efficiency of electrical systems
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Q3. How is DRPC different from conventional capacitor banks?
- • DRPC provides dynamic and fast compensation, unlike fixed or switched capacitors.
- • Works effectively under rapid load variations.
- • Can provide both leading and lagging reactive power continuously.
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Q4. How does a DRPC work?It typically uses power electronic converters (IGBT-based VSCs) to continuously monitor voltage and current and inject or absorb reactive power as needed.
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Q5. Can DRPC improve voltage and power factor simultaneously?Yes. By controlling reactive power dynamically, it stabilizes voltage levels and improves power factor in real time.
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Q6. How fast does DRPC respond to system changes?Response times are typically in milliseconds, making it suitable for modern grids and industrial systems with fluctuating loads.
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Q7. Where is DRPC typically installed?
- • Transmission and distribution substations
- • Heavy industries with large motors, furnaces, or variable loads
- • Renewable energy plants (solar, wind, hybrid systems)
- • Railways, airports, and critical infrastructure
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Q8. Can DRPC handle harmonics?While primary function is reactive power compensation, advanced DRPC systems can be combined with active harmonic filters (AHF) for harmonic mitigation.
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Q9. Is DRPC suitable for both short-term and long-term voltage support?Yes. DRPC provides fast response for transient voltage dips and maintains long-term reactive power support for system stability.
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Q10. What are the benefits of DRPC?
- • Rapid voltage regulation and stabilization
- • Dynamic reactive power support (both capacitive and inductive)
- • Reduced losses and improved efficiency
- • Minimal footprint and modular design
- • Better performance compared to traditional SVC or capacitor banks
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Q11. How does DRPC compare to SVC and STATCOM?
Feature DRPC SVC STATCOM Response time Milliseconds Seconds Milliseconds Voltage support at low voltage Excellent Moderate Excellent Reactive power range Continuous & dynamic Limited Dynamic Footprint Compact Larger Compact Harmonic handling Optional with AHF Limited Optional with AHF -
Q12. What standards are followed for DRPC design and operation?
- • IEEE 519 (Harmonics & Power Quality)
- • IEC 61000 series (EMC & PQ)
- • Local utility grid codes for reactive power compensation
- • ISO and IEC standards for safety and performance