Our Products
ACTIVE VOLTAGE CONDITIONER AVC
Introduction
WHAT IS VOLTAGE DROP?
According to IEEE standard 1159-1995, a voltage dip is defined as a decrease in effective voltage from 90% to 10% of the nominal voltage for a time greater than 0.5 cycles of the power frequency but less than or equal to one minute.
Characteristics of voltage drops
High frequency of occurrence
Sinking time is unpredictable
Short duration and great depth
Operating principle
An AVC monitors the input voltage at all times. Once the voltage deviates from the set point, within 3 milliseconds, it controls the IGBT inverter to add the appropriate compensation voltage to the main loop through the series injection transformer and adjusts the charging end voltage to the nominal value extremely quickly, thus eliminating the impact of voltage drop from the grid input end on the load. During this time, power is drawn from the grid.
1. Power grid voltage within normal range
The thyristor is on and power to the load comes from the mains.
2. A voltage drop or rise occurs
The thyristor is off, isolating the grid voltage from the load, the load power is switched to the supercapacitors within 1/4 cycle.
3. Utility returns to normal
The thyristor is turned on, power to the load is diverted back to the grid, and the supercapacitors begin charging in preparation for the next voltage event.
Applications
- Industrial Plants
- Heavy Industries: Steel mills, aluminum smelters, chemical plants.
- Manufacturing: Semiconductor manufacturing, automobile production, textile factories.
- Benefits: Protects sensitive equipment, minimizes production downtime and ensures continuous operation.
- Commercial buildings
- Office Complexes: Maintains stable power supply for office equipment and computer networks.
- Shopping Centers: Ensures reliable operation of lighting, air conditioning systems and electronic devices.
- Benefits: Prevents equipment malfunction, reduces energy consumption, improves energy quality.
- Renewable energy systems
- Wind Farms: Compensates for voltage drops caused by fluctuations in wind speed.
- Solar Power Plants: Stabilizes voltage variations caused by intermittent solar power generation.
- Benefits: Improves power quality, supports grid stability and reduces energy losses.
- Public services and energy distribution
- Substations: Provide voltage regulation and support during faults and disturbances.
- Distribution Networks: Ensures stable voltage levels for end consumers.
- Benefits: Improves grid reliability, reduces transmission losses and supports the integration of renewable energy.
- Data centers
- Server Rooms: Protect servers and data storage devices from power outages and interruptions.
- Network Operations Centers: Ensure reliable operation of network equipment.
- Benefits: Improves power quality, prevents data loss, and improves system uptime.
- Sanitary facilities
- Hospitals: Maintains power quality for critical medical equipment and systems.
- Diagnostic Laboratories: Protects sensitive diagnostic devices from voltage disturbances.
- Benefits: Ensures reliable operation of medical equipment, reduces energy costs and improves power quality.
Benefits
AVCs play a crucial role in maintaining power quality, protecting electrical equipment, and improving the overall efficiency and reliability of electrical systems in various applications and industries.
- Improved power quality
- Eliminates voltage drops, surges and interruptions.
- Ensures stable and continuous power supply for critical loads.
- Improved equipment lifespan
- Protects sensitive equipment from voltage-related damage.
- Reduces the risk of equipment failure and extends operational life.
- Increased system reliability
- Mitigates the risk of production downtime and process interruptions.
- Ensures the continuous and reliable operation of critical processes and systems.
- Energy saving
- Reduces energy losses associated with voltage disturbances.
- Improves overall electrical system efficiency, leading to lower energy costs.
- Compliance with Standards
- Ensures compliance with electrical quality standards and regulations.
- Avoid penalties and ensure compliance with industry standards.
- Scalability and flexibility
- Modular design allows for easy expansion and adaptation to changing power demands.
- Suitable for a wide range of applications from low voltage to high voltage systems.
- Support for the integration of renewable energies
- Stabilizes voltage levels for wind and solar power plants.
- Facilitates the integration of renewable energy sources into the grid.
- Environmental benefits
- Reduce energy waste and lower your carbon footprint.
- Promotes the use of clean and efficient energy technologies.