Rated Volt: 110V-690V
Frequency: 50/60HZ
Wiring: 3P3W/3P4W
Warranty: 18 months
Rated Capacity: 15A-150A single module/unlimited for parallel
Function: Harmonic Mitigation, Reactive Compensation, Imbalance Phase Balancing
Installation: Wall mounted/Floor stand cabinet
Standard: IEC61000/62477
CoEpower AHF Active Harmonic Filter is a new technique for power quality solutions that uses IGBT inverter-based 3-level topology technology to support fast real-time harmonic mitigation. ال active powder filter offers a selectable priority function with reactive power compensation, load balancing, and harmonic filtering.
Active harmonic filter AHF is connected to the power system in parallel, and the power system data is collected in real-time through an external sampling Current Transformer CT. The internal DSP will react ultrafast with an intelligent FFT algorithm to calculate the required compensation current value and send a command to IGBT. The IGBT dynamically adjusts the switching frequency to optimize the performance and AHF to output a reverse ample but the same value current to offset harmonic current, thus reducing the harmonic distortion for each order, finally realizing a total harmonic distortion ratio below 5% according to IEEE 519 standard.
| Rated Voltage | 220-690V |
| Rated Capacity | 15A-150A single module/unlimited for parallel |
| Frequency | 50/60Hz |
| Wiring Mode | 3P3W/3P4W |
| Filtering Range | 3-51th Order Harmonic |
| Function | Harmonic Mitigation, Reactive Compensation, Imbalance Phase Balancing |
| Full Response Time | <10ms |
| Switching Frequency | 20Khz |
| Power Loss | <2.5% |
| IP Class | IP20/Customized |
| Installation | Wall mounted/Floor stand cabinet |
| Standard | IEC61000/62477 |
| Communication | MODBUS Protocol/Optional Ethernet |
● Easy to Use Graphical User Interface
The CoEpower series integrates an HMl, including a graphical user interface. It offers direct control, configuration, monitoring, and harmonic analysis of the Active Powder Filter without needing a PC. Communication options, detailed alarm events, and fault reporting with real-time stamps are also included.
● Backlit Display
Incorporating a high level of readability and ease of menu navigation, the backlit LCD offers:
-Access and configuration of operating parameters
-Measurement data in numerical, graphical, and spectrum
-Operation status inducive of detailed alarms and fault messages
-Password protected for critical settings
● Measurements
Provides a comprehensive set of measurement data for analysis, such as:
-Network RMS voltages and currents
-Network Voltage and current distortions (THDu and THDi)
-Total RMS load currents and THDi
-System frequency
-Load factor
-Compensated RMS currents
-Comparison of PF (before and after)
-Graphical waveform of network voltages and currents, load, and compensated currents
-Harmonic spectrum for network and load currents from 2-to 50-order harmonic
● Power factor correction (lagging and leading).
● Load balancing in three-phase systems.
● Controlled and selectable harmonic generation
● Flexible application: Modular design, embedded in standard or customized cabinet
● Low thermal loss (≤3% of rated APF kVA), efficiency ≥ 97%
● High harmonic filtering rate: Up to 98%
● High stability: Infinite impedance to the grid, avoids harmonic resonance problems
● Factory ODM Customized design service support
● Standard factory warranty is one year from the verified date of startup or customized
● NPC 3-level topology design
● DSP+FPGA high-speed operational capability
● Automatic limiter without overload
● Protection:16 ways wide protection range: overvoltage, overcurrent, over temperature.Etc
● Communication: MODBUS Protocol or Ethernet optional
CoEpower 600A AHF Filter is installed at the production site of high-power heating furnace equipment
Harmonic Mitigation Solution for Sites with High-power Frequency Converters
CoEpower Active Harmonic Filter Installed in a Large Shopping Mall
س 1: ما هو مرشح التوافقي النشط AHF?
An Active Harmonic Filter (آه) is a power quality device that dynamically mitigates harmonic distortions in electrical systems by generating counteracting currents. It helps in reducing harmonics, improving power factor, and stabilizing voltage fluctuations.
Q2: How does the AHF active harmonic filter work?
An AHF continuously monitors the electrical system using current sensors and detects harmonic distortions. It then generates real-time compensating currents with an inverse phase to neutralize harmonics, ensuring a clean power supply.
Q3: What is the purpose of the AHF active harmonic filter?
The primary purpose of an AHF is to improve power quality by:
-Reducing harmonic distortions
-Enhancing power factor
-Mitigating voltage fluctuations
-Reducing stress on electrical equipment, extending their lifespan
Q4: What is the difference between an AHF active harmonic filter and a PHF passive harmonic filter?
مرشح التوافقي النشط (آه): Uses real-time electronics and injects compensating currents to cancel harmonics dynamically.
Passive Harmonic Filter (PHF): Uses passive components (inductors, capacitors, المقاومات) tuned to specific harmonic frequencies for mitigation.
Q5: Which is better, an active or passive filter?
AHF is better for dynamic loads, variable-frequency drives (VFDs), and systems with fluctuating harmonic levels.
PHF is more cost-effective for stable loads with predictable harmonic profiles.
The choice depends on application requirements, budget, and flexibility needs.
Q6: What is the difference between an active harmonic filter and a capacitor bank?
AHF primarily mitigates harmonics and improves power quality.
Capacitor banks are used for power factor correction but can worsen harmonics in some cases.
AHFs can function dynamically, whereas capacitor banks are typically fixed or switched in steps.
Q7: What is the difference between an AHF active harmonic filter and SVG Static Var Generator?
AHF focuses on harmonic compensation and power factor correction.
SVG primarily provides reactive power compensation to maintain a stable power factor.
AHFs are better for harmonic-rich environments, while SVGs are ideal for voltage stability and reactive power control.
Q8: How do you choose an active harmonic filter?
Consider the following factors:
-Harmonic spectrum analysis of the system
-Load size and variation
-Total harmonic distortion (THD) limits required
-Power factor improvement needs
-Compatibility with existing electrical infrastructure
-Budget and cost-effectiveness
● We are a professional power quality solution research and development design manufacturer with years of experience that will support you with more competitive technical and price support.
● We have rich application experience to provide you with more professional, precise, and better service support
● High-grand components and strict product quality control procedures offer reliable product quality.
● We have years of exporting experience to decades of regions worldwide, and multi-competitive shipping choices, which can give you more reliable, fast, and cost-effective shipping.
● TUV CE approved test item based on IEC 61000 AND IEC 62477 series standards
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