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LV IGBT Based Hybrid Power Factor Correction Systems

Power Factor Correction Systems

Facilities require IGBT-based reactive power correction systems due to rapid industrial growth, increased infrastructure-driven power consumption, and the dynamic response times of electronic loads. Furthermore, dual-zone power factor correction is essential in facilities with diverse load characteristics, such as hospitals, hotels, shopping malls, commercial buildings, and administrative structures.

LV IGBT based hybrid power factor correction systems offer independent capacitive compensation for inductive power and inductive compensation for capacitive power at the individual phase level, with rapid response times in the millisecond range. These systems can achieve seamless, concurrent power factor correction. The IGBT-based modules employ a PQvar Series three-level inverter topology, which ensures real-time responsiveness to reactive power requirements.

What is LV Power Factor Correction?

Reactive power factor correction in low-voltage electrical systems is a technique used to improve energy efficiency and reduce energy losses. Reactive power is generated when devices such as motors, transformers, and lighting systems draw reactive inductive power from the grid in industrial and commercial facilities. This reactive power contributes to excessive load on power transmission lines, resulting in energy losses.

To balance or improve reactive power, power factor correction systems are used. The components of LV Power Factor Correction Systems include:

Capacitor Banks

  • The most widely adopted approach for reactive power factor correction
  • Address the reactive power demands of inductive loads
  • Can be implemented as either automatic or manual systems

Static VAR Compensators (SVC)

  • Provide reactive power factor correction through the utilization of electronic circuits
  • Offer rapid response times and dynamic control capabilities
  • Incorporate harmonic filtering properties

Static VAR Generators (SVG)

  • Employ high-speed electronic components to balance reactive power
  • Operate across a broad frequency range and can reduce harmonics

Operating Data

Rated Voltage230 – … – 690V
Rated PowerAccording to request
Rated Frequency50/60Hz

Standard

  • EN 50091-3, IEC 62040-3

Electrical Design

CosØ Target100% Inductive or Capacitive
Inverter Technology3 Level Topology with 12 IGBT
Safety and Proteciton,Overvoltage & Undervoltage,
Inverter Bridge Inverse,
Over-compensation,
Overload Protection,
Internal Short-circuit Protection,
Overheating Protection,
Fan Fault Alarm
Connection3 Phase & Neutral

Enclosure Design

Enclosure Protection DegreeIP20 (other IP classes are customizable)
CoolingForced Ventilation with Thermostat Control
MountingFloor-mounted, Wall-mounted

What is SVG (Static VAR Generator) Power Factor Correction?

Power factor correction using Static Var Compensator technology is a method to improve the power factor in electrical systems. Power factor is the ratio of active power to total apparent power, and a poor power factor can lead to inefficiencies and energy losses in power distribution.

SVCs are desgined to dynamically adjust reactive power to enhance the power factor, resulting in reduced energy losses, decreased energy costs, and improved operational efficiency of electrical systems.

The advantages of SVG systems include:

  • Fast and dynamic reactive power compensation
  • High efficiency due to low energy losses
  • Ability to operate over a wide frequency range
  • Reduction of harmonics
  • More compact and maintenance-free design

What is an SVG Capacitor Bank?

An SVG capacitor bank is an electrical enclosure that oversees and coordinates the operations of static VAR generators. It ensures the optimal functioning of SVG devices and their seamless integration with the electrical grid. The enclosures typically comprise the following component:

  • SVG Devices: Main components responsible for reactive power factor compensation.
  • Control Unit: Monitors and regulates the operation of SVG devices
  • Measurement and Monitoring Devices: Measure crucial electrical parameters such as current, voltage, and power factor
  • Safety and Protection Equipment: Includes fuses, circuit breakers, and other protective mechanisms.
  • Connection Components: Cables and terminals that ensure electrical connectivity

SVG capacitor banks are extensively utilized in industrial facilities, commercial buildings, and large energy-consuming entities. They contribute to more efficient and safer utilization of electrical energy. After addressing the question “What is an SVG Capacitor Bank?”, let us now explore their key characteristics.

Characteristics of LV IGBT Based Hybrid (SVG) Power Factor Correction Systems

LV IGBT-based hybrid power factor correction systems exemplify cutting-edge technology in reactive power control technology. Their rapid and adaptable response, broad operational range, and high efficiency make them an indispensable tool for reducing energy expenditures and improving power quality. These systems have gained widespread adoption in contemporary electrical networks, offering substantial benefits in energy stewardship. Key characteristics include:

Rapid Response to Reactive Power Demands:

  • Responds to reactive power requirements within milliseconds due to the application of IGBT technology
  • Enhances system stability with expeditious reactions to sudden load fluctuations

Extensive Operating Range:

  • Functions efficiently across a wide spectrum of frequencies and loads
  • Effectively balances both capacitive and inductive loads

Harmonic Filtration:

  • Reduces harmonic currents and voltage distortions, thereby improving power quality
  • Utilizes both passive and active filtering techniques

High Energy Efficiency:

  • Operates with high efficiency, reducing energy losses and operational costs
  • Decreases electricity consumption expenses

Dynamic and Automated Control:

  • Automatically adjusts reactive power through advanced control systems and algorithms
  • Maintains the power factor at optimal levels and prevents associated penalties

Compact and Modular Design:

  • Space-saving design with a compact layout
  • Modular structure facilitates easy scalability and maintenance

Benefits of IGBT-Based Hybrid Capacitor Banks

In comparison to traditional systems, IGBT-based hybrid capacitor banks exhibit rapid responses to immediate load fluctuations and precise power factor correction capabilities. Benefits can be summarized as follows:

  • Mitigation of potential resonance issues
  • Rapid response capability within milliseconds
  • Ability to provide bidirectional compensation for inductive and capacitive loads
  • Suitability for unbalanced load scenarios
  • Extended operational lifetime of capacitors and contactors
  • Avoidance of unnecessary main switch tripping
  • Improved power factor
  • Decrease in unpredictable maintenance expenses, production downtime, and energy consumption.

Utilization of LV IGBT Based Hybrid (SVG) Power Factor Correction Systems

These hybrid power factor correction systems are used extensively across a wide range of business and industrial settings, including:

  • Industrial facilities (factories, workshops, production lines, etc.)
  • Commercial buildings such as shopping malls, plazas, and offices
  • Data centers and IT infrastructure-based businesses
  • Hospitals and healthcare facilities
  • Energy transmission and distribution centers.

Components of LV IGBT Based Hybrid (SVG) Power Factor Correction Systems

These systems are comprised of several essential components that ensure dynamic and efficient functioning. Each component plays a fundamental role in the management of reactive power and improvement of power quality, ensuring optimal performance and reliability.

  • IGBT Modules: Provide dynamic regulation of reactive power with expeditious response capabilities.
  • Capacitor Banks: Facilitate conventional reactive power correction and accommodate elevated load requirements.
  • Control Unit: Monitors reactive power and harmonic levels, enacting essential modifications.
  • Measurement and Monitoring Devices: Quantify and observe electrical parameters such as current, voltage, power factor, and harmonic distortion.
  • Protection and Safety Equipment: Incorporate fuses, circuit breakers, and additional protective components.

Ergun Elektrik and LV IGBT Based Hybrid (SVG) Power Factor Correction Systems

Ergun Elektrik leverages cutting-edge technology to offer its clients customized LV IGBT-based hybrid power factor correction systems. These essential systems significantly improve energy efficiency and power quality. The company’s expert engineers provide tailored solutions to optimize the performance of electrical systems, enabling reliable deployment across diverse sectors, including industrial facilities and commercial buildings.