SNA-AHF

SINAVA AHF Active Harmonic Filter is a new technique for power quality solutions that uses an IGBT inverter-based 3-level topology technology to support fast, real-time harmonic mitigation. The 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 the IGBT. The IGBT dynamically adjusts the switching frequency to optimize the performance and AHF to output a reverse amplitude 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.

SNA-AHF series by SINAVA is an advanced Active Harmonic Filter (AHF) that enhances power quality in electrical networks. It identifies and mitigates harmonics, improving power quality significantly. Unlike passive filters, the SNA-AHF series active harmonic filter dynamically adapts to varying harmonics, making it highly effective. It also offers power factor correction, reducing energy costs and preventing utility penalties. Additionally, it ensures load balancing, extending the electrical infrastructure's lifespan.

FAQs About AHF Active Harmonic Filter

Q1: What is an AHF active harmonic filter?

An Active Harmonic Filter (AHF) 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?

Active Harmonic Filter (AHF): Uses real-time electronics and injects compensating currents to cancel harmonics dynamically.

Passive Harmonic Filter (PHF): Uses passive components (inductors, capacitors, resistors) 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 an 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

Why Choose Us?

● 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-grade components and strict product quality control procedures offer reliable product quality.

● We have years of exporting experience across decades of regions worldwide, and multiple 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