Driven by the deepening of industrial automation and the global "dual carbon" goals, the application boundaries of variable frequency drives (VFDs) and inverters are rapidly expanding. From factory conveyor belts to grid-tied photovoltaic systems, from commercial HVAC to electric vehicle charging facilities, power electronics have permeated every corner of modern industry and energy systems. However, the harmonic interference, surge impacts, and voltage stress generated during VFD and inverter operation have also followed – these issues directly affect equipment efficiency, reliability, and service life. AC reactors are the key components that address these problems.
Core Application Scenario 1: Industrial Motor Drives – Ensuring Stable VFD System Operation
Application Scenario
- VFDs are the core control devices for fans, pumps, compressors, conveyors, and other equipment
- Widely used in machining, heavy industry, water treatment, and other fields
Two Major Issues
- Input side: The rectifier bridge generates 5th, 7th, and other characteristic harmonics fed back to the grid, causing voltage distortion, power factor reduction, and interference with sensitive equipment such as meters and PLCs
- Output side: PWM high-frequency components cause increased motor noise, higher eddy-current losses, and accelerated insulation aging, shortening motor life by 30%-50%
How the Input Reactor Solves These Issues
- Suppresses harmonics – reducing harmonic current by 30%-40%
- Limits surge current – peak current reduction up to 60% or more
- Improves power factor
How the Output Reactor Solves These Issues
- Smooths PWM waveform, reducing dv/dt
- Reduces motor noise and eddy-current losses
- Extends motor life
HVAC Applications
- Reactors ensure reliable operation of VFD drives in HVAC systems
- Building energy efficiency and smart building trends are driving demand growth
Core Application Scenario 2: New Energy Generation – Supporting PV and Energy Storage Inverter Systems
Application Scenario
- PV inverters: convert solar DC power to AC power for grid connection
- Energy Storage Converters (PCS): manage battery charging and discharging
Role of the Reactor
- Connected in series between the inverter and the grid to suppress high-frequency harmonics
- Improves grid-connected current quality, ensuring compliant power feed-in to the grid
- Used for filtering and transient protection in PCS systems
Market Drivers
- Global renewable energy installed capacity continues to expand
- New energy projects in major markets such as Germany, China, and the US are driving demand growth
- Energy storage installations are growing rapidly, and the application market space for reactors continues to expand
How the Product Meets Industry Needs: Broad Coverage and Strong Customisation
The SHINHOM AC reactor series is designed to meet the diverse needs of industrial and new energy applications:
| Requirement | SHINHOM Solution |
|---|---|
| Wide current range | 5A-1250A – covers small VFDs to high-power inverters |
| Multiple voltage levels | 380V / 690V – suitable for general industrial and new energy systems |
| Flexible voltage drop options | Input reactors: 2% or 4% voltage drop; Output reactors: 1% or 2% voltage drop – adapts to different harmonic and dv/dt protection needs |
| Full customisation | Voltage, current, inductance, voltage drop, core material, copper/aluminium winding, insulation class, dimensions – all customisable for special operating conditions |
Conclusion
Industrial automation is advancing in depth, and new energy installed capacity continues to rise. These two trends are jointly driving the AC reactor market into a steady growth trajectory. As VFD and inverter penetration rates continue to increase, the value of reactors as key components for ensuring system reliability and improving power quality is being recognised by more engineers and project managers.
The SHINHOM AC reactor series serves two core application areas – industrial motor drives and new energy power generation – with wide current coverage, multiple voltage levels, and flexible customisation capabilities. For selection recommendations based on your specific system parameters and application conditions, please contact the SHINHOM technical team.
📧 Email: sales@shinhom.com
🌐 Website: www.shinhom.com/
🔗 Product Details & Inquiries: AC Reactor Series