Innovative Active Dynamic Filter for Harmonic Management

Product Description

Working Principle

The working principle of the STD APF series active power filter is to detect the load current in real time, separate the harmonic currents one by one based on the specified harmonic current detection algorithm, and generate and control the driver IGBT output and load harmonic current according to the set filtering percentage. Compensation currents with the same amplitude and opposite phases achieve the purpose of harmonic cancellation.

Product Description

COMPACT HIGH PERFORMANCE
* Wall mount or cabinet mount in an ultra-compact design
* Modular design, convenient multi-module parallel, small footprint, easy maintenance
* Independent air duct and independent plate bin structure design to ensure the stable operation of equipment.

OPTIMAL HARMONIC MITIGATION
* Harmonic compensation rate>92%
* Selection of odd and even harmonics up to the 50th order
* High efficiency >97%
* Reaction time <100us Response time of <10ms

PROTECT YOUR SYSTEM FROM RESONANCE.

* The current spectrum is analysed at 1024 individual points per cycle
* System impedance at each individual harmonic is effectively 'learnt' by the AHF
* Compensation current is slowly increased with system stability closely monitored
* Should resonance be detected at any point the intelligent FFT can skip the problematic point
BALANCE YOUR LOADS AND CORRECT YOUR POWER FACTOR TOO
* In addition to harmonic mitigation the AHF can provide load current balancing
* Reactive power can be compensated for thus increasing power factor

Project Case

Manufacturing Shop

 

Product Parameters

TYPE	Series 220V	Series 400V	Series 500V	Series 690V
Max neutral wire current	23A	15A ,25A ,50A, 75A ,100A ,150A	100A	100A
Nominal voltage	AC220V(-20%~+20%)	AC380V(-20%~+20%)	AC500V(-20%~+20%)	AC690V(-20%~+20%)
Rated frequency	50Hz±5%
Network	Single phase	Three-phase three-wire/three-phase four-wire
Response time	<40ms
Harmonics filtering	2th to 50th Harmonics,The number of compensation can be selected, and the range of single compensation can be adjusted
Harmonic compensation rate	>92%
Neutral line filtering capability	/	The filtering capacity of three-phase four-wire neutral line is 3 times of that of phase filtering
machine efficiency	>97%
Switching frequency	32kHz	16kHz	12.8kHz	12 .8kHz
Feature selection	Deal with harmonics/Deal with harmonics and reactive power	Deal with harmonics/Deal with harmonics and reactive power/ Deal with harmonics and three-phase unbalance /Three options
Numbers in parallel	No limitation. A single centralized monitoring module can be equipped with up to 8 power modules
Communication methods	Two-channel RS485 communication interface (support GPRS/WIFI wireless communication)
Altitude without derating	<2000m
Temperature	-20~+50°C
Humidity	<90% RH,The average monthly minimum temperature is 25ºC without condensation on the surface
Pollution level	Below level 3
Protection function	Overload protection, hardware over-current protection, over-voltage protection, power failure protection, over-temperature protection, frequency anomaly protection, short circuit protection, etc
Noise	<50dB	<60dB	<65dB
Installation	Rack/wall hanging		Rack
Into the way of line	Back entry (rack type), top entry (wall-mounted)		Top entry
Protection grade	IP20

Product Packing