1. 200/400V Active Harmonic Filter AHF ModuleOverview
Enjoypowers’ 200/400V active harmonic filter(active power filter) AHF module is a three-level inverter power management system used for power harmonics filtering, power factor correction, three-phase load balancing, effectively reducing line loss, and prolonging the service life of power equipment.
Enjoypowers’ 200/400V active harmonic filter AHF’s modular design allows flexibility in installation and integration. It is a preferred power quality solution for all power consumers, system integrators, and OEMs.
2. Operating principle
Enjoypowers’ AHF is connected in parallel with the nonlinear load and uses a set of current transformers (CT) to detect the load current. It calculates each order harmonic current through the FFT algorithm in its DSP chip, and then generates a compensation current with the same amplitude but opposite phase angle to the detected harmonic current, so as to offset the original load harmonic.
3. Product specification
| Rated voltage [V] | 200/400 | 200/400 | 200/400 | 200/400 | 200/400 |
| Filter characteristics Line current rating [A] | 50 | 75 | 100 | 150 | 200 |
| Reactive power Compensation capacity [kVar] | 35 | 50 | 75 | 100 | 150 |
| Unbalanced kvar and kW compensation | 100% | 100% | 100% | 100% | 100% |
| Dimensions（W*D*H, mm） | 315×500×200 | 355×555×200 | 440×575×232 | 510×585×250 | 630×640×250 |
| Weight [kg] | 22 | 27 | 38 | 47 | 56 |
4. Features
- High energy efficiency, due to three-level inverter technology
- Integration of load balancing, power factor compensation, and harmonics filtering features into one module
- Hybrid var compensation solution: built-in 16 DO ports to control ordinary capacitors, or RS485 interface to control intelligent capacitor
- Precise compensation, high-speed response, Overall response time <7.8ms
- Load balancing and unloading of neutral wires.
- Flexibility and modularity
5. Applications
- All types of industrial installations
- Equipment using variable speed drive (VSD) and frequency converter
- arcing equipment: electric arc furnace (EAF), ladle furnace (LF), and arc welding machine
- Switching power supply: computer, TV, photocopiers, printer, air conditioner, PLC
- UPS system
- Datacenter
- Medical equipment: MRI scanner, CT scanner, X-ray machine, and linear accelerator
- Lighting equipment: LED, fluorescent lamp, mercury vapor lamp, sodium vapor lamp, and an ultraviolet lamp
- Solar inverter and wind turbine generators
6. Why choose Enjoypowers？
- Enjoypowers is the top 2 power quality manufacturer in China
- More than 16 years of experience in electronics technology
- Compliance with grid standards and norms
- CE, RoHS, CQC certification, EMC of IEC61000, IEEE 519 compliance
- Suitability for the majority of segments like commercial and infrastructure segments
- Provide customized development of structure, software, hardware, and functions
- Provides complete training and services to continuously empower partners
- Enjoypowers’ products have been successfully delivered in more than 20 countries