STATCOM vs. SVC: The Key to Power Quality in the Energy Transition

In the dynamic world of power quality, reactive power management is crucial to maintain the stability and efficiency of electrical systems. Two key technologies in this area are STATCOM (Static Synchronous Compensator) and SVC (Static VAR Compensator). What differentiates them and how do you know which one is right for your application? Join us in this technical exploration with an analog touch that will make it easier to understand their particularities.

Reactive Power: The Hidden Engine

Before going into the technologies, it is essential to understand reactive power. Imagine that the electrical grid is a moving vehicle. Active power is the motor that drives the car, while reactive power is the steering and suspension system that ensures a smooth and stable ride. Too much reactive power can cause the car to lose stability, while too little can hinder maneuverability. This is where both come into play.

SVC: The Master of Suspension

This equipment uses reactors and capacitors along with thyristors to inject or absorb reactive power into the grid. Think of the SVC as a manually adjustable car suspension system, which adapts its stiffness to keep the ride as comfortable as possible.

Technical Characteristics

• Components: Thyristor-controlled shunt reactors (TCR) and shunt capacitors, fixed operation (FC) or capacitors.
• Response Time: In the millisecond range, suitable for slow to moderate fluctuations.
• Control: Control based on voltage reference signals.
• Applications: Ideal for transmission networks with moderate voltage fluctuations.

STATCOM: The Electronic Brain of the Network

This equipment uses power electronics converters to generate or absorb reactive power. This device is like an advanced digitally controlled steering and suspension system that adjusts in real time to maintain vehicle stability even in the most challenging conditions.

Technical Characteristics

• Components: Voltage source converters (VSC), coupling reactors and advanced digital control systems.
• Response time: In the range of microseconds to milliseconds, suitable for fast and dynamic fluctuations.
• Control: Advanced digital control with direct current control algorithms.
• ​​Applications: Ideal for modern systems with high demand for stability and rapid voltage fluctuations.
• Flexibility: We offer STATCOMs in a containerized option, which facilitates transportation and installation in remote or space-limited locations.

Technical Comparison: SVC vs. STATCOM

To better understand the difference between both, let's compare these technologies in more detail:

Choice between STATCOM and SVC

The choice between STATCOM and SVC depends on the specific needs of the electrical network. For industrial applications requiring high response speed, harmonic distortion reduction and/or unbalance problems at low powers, the STATCOM is the most suitable option. In cases of transmission networks that require high power and only reactive power compensation, the SVC can be an effective solution.

Our experience and offering

At DIRAM, we have extensive experience in the implementation of both technologies. Whether your project requires the accuracy, speed and active filtering capabilities of a STATCOM or a high power application intended for an SVC, we are the first choice for power quality improvement solutions. In addition, our offer of STATCOMs in containerized options ensures fast and flexible installation, adapting to the specific needs of your infrastructure.

Conclusion

Both are essential for efficient reactive power and power quality management. With the right guidance and a clear understanding of your needs, you can significantly improve the stability and efficiency of your power system. At DIRAM, we are ready to help you achieve this with our advanced solutions and proven expertise in the field of power quality.

For more information and personalized consultations, do not hesitate to contact us. At DIRAM, your power quality is our priority.

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PD. We have a STATCOM PDF. Download this brochure for more information about STATCOM and SVC technology specifications.

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