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Home Product Filter & Compensation Active Harmonic Filter (AHF)

Filter & CompensationActive Harmonic Filter (AHF)

General Description

  • THDi meet IEEE519 limitation, IEC 62271, NEMA

  • ISO 9001, KEMA, CESI, CE, TUV, UL, ASTA

  • Seismic design, ETGI-1.020, IEEE Std 693, NCh2369

  • Structural design, ASTM A325, ANSI/AISC 360, AWS D1.1

  • High altitude correction per IEC 62271 & IEEE C37, ~ 5000m

  • Offering centralized active harmonic compensation with cost effective solution

  • Dynamic reactive power compensation for both inductive and capacitive loads

  • Continuous variable reactive power output without over-compensation and under-compensation

  • Ideally for steel, coal mining, chemical industry, wind and solar farms, railway electrification systems

Typical Specification

Medium Voltage Active Harmonic Filter (AHF)

General rating


Rated Voltage

3kV - 35kV

Voltage Tolerance

120%

Rated Frequency

50/60Hz

Single Set Capacity

Up to 20Mvar

Harmonic Filtering Capacity

All the capacity can be used for harmonic filtering

Control Power Supply

380VAC, 3PH; 220VDC (110VDC optional)

Performance


Harmonics Compensation Capability

Meet IEEE519 limitation

Harmonic Spectrum

2nd to 50th harmonics

Selective Harmonic Compensation

2nd to 50th harmonics all can be selected individually,

and the filtering degree of each order can be set individually

Response Time

5ms

Targeted Power Factor

≥0.95

Power Loss

≤1%

Working Mode

Harmonic First, Harmonic Only, Constant power factor,

Constant var, Constant voltage, Fixed capacitor control (optional)

Power Module Design


Primary Circuit Topology

Modular multi-level converter (MMC)

Power Module Topology

H-bridge inverter with IGBTs

Power Modular Design

Yes, all modules are the same and interchangeable

Control System Design


Processor

FPGA+DSP+ARM

Internal Communication

Optical Fiber

Input I/O

Analog: 8 channels, 4 - 20mA

Digital: 32 channels, expandable

Output I/O

Analog: expandable

Digital: 16 channels (contact type), expandable

HMI

10-inch true-color TFT touch-screen

Language

English, Spanish, Italian, Polish

Communication Interface

RS-485, Ethernet

Communication Protocol

MODBUS, IEC104, IEC61850

Protections

Over-current, IGBT drive fault, Input over-voltage, Input under-voltage, Controller fault,

Power Module Fault, Power module over-voltage, Power module over-current,

Power module over-temperature, Power module communication fault and etc.

Enclosure


Enclosure Protection Class

IP30 for indoor installation

IP54 self-support containerized solution for outdoor installation

Color

RAL7035 light gray

Cable Entry

Bottom

Cooling Type

Forced-air cooling

Ambient Environment


Operation Temperature

-10-40℃

Storage Temperature

-40-85℃

Humidity

Maximum 90% non-condensation

Altitude

1000m (higher operation altitude allowed with derating)

EMC Susceptibility

Level 4 of IEC61000-4-2/3/4/5