La description
Principle
APF is a new power electronic equipment which can dynamically
filter harmonic with variable amplitude and frequency and
compensate reactive power, it overcome the shortages of
traditional LC filter and obtained the better compensation
characteristics than passive filter.
The following diagram is schematic diagram of APF, where, Vs
is AC power supply, nonlinear load is harmonic source, it
generates harmonic and consumes reactive power. APF is composed
of instruction current operational circuit and compensation
current generation circuit, the instruction current operational
circuit is mainly to inspect current contents in harmonic current
and reactive power of compensation object, and the compensation
current generation circuit generates actual compensation current
according to instruction current, the main circuit adopted PWM
converter.
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Technical Features:
- Compensate any order harmonic with variable amplitude and
frequency and different reactive power dynamically, and has a
high-speed response time to the change of compensation object, it
is hard to generate harmonic resonance with power grid impedance.
- It can implement compensation on single harmonic source and
reactive power source and also implement centralized compensation
on many harmonic and reactive power
sources.   Â
- Adopt full-bridge PWM converter to generate compensation
current, the power unit is 5th generation IGBT, it is working
under the high-frequency switching. Power circuit and control
circuit adopted modularized structure or plug-in unit, same
module can be replaced, which enhanced the reliability and
maintenance.      Â
- DSP high-speed checking and operation ensure harmonic
checking and compensation control correct; It has intelligent
supervisory control function, the working state and operation
parameters are displayed in real-time, meanwhile, faults can be
self-diagnosed; it also has remote communication interfaces, the
real-time monitoring can be realized through PC.
- With perfect protection functions, the main circuit adopted
three-phase three wire or three-phase four wire, it is designed
to shunt APF, very easy and safe to
operate.      Â
- The master chip adopted latest floating-point DSP F****5 of
TI Company and FPGA of ALTERA Company to make the system have
powerful processing capacity, the sampling adopted AD***6 with *6
bits of AD Company to ensure control
precision.     Â
- APF can be used in power grid alone or can be combined with
other passive filters together to realize hybrid filter with best
ratio of performance to price.
Application Fields:
Static converters for industrial use, such as high and low
voltage transducer (speed regulation), high capacity rectifier
devices, etc.Â
-
The DC equipment or transducer of the steel mill, high speed
wire, boards and bars.
-
Ferrous (non-ferrous) rolling (mill): Such as stainless steel
rolling, carbon steel rolling, line rolling, aluminum sheet
(strip, foil) rolling mill.
-
Non-ferrous electrolysis industry: Electrolytic aluminum,
copper, cadmium, cesium, etc.
-
Rubber and plastic industry: Internal mixer, injection
molding machine, extruding machine, blow molding machine etc
-
Medium frequency induction heating furnace: Metal casting
industry, steel mill hot rolling.
-
Electrolysis of chemical plant: Electrolysis NaCl,
electrolysis KCl, electrolysis H, et.
-
Electroplating industry: Chroming, aluminizing and
galvanizing in lighting factory, etc.
-
Paper industry: Speed regulation used for craft, such as
paper-pulp squeezer, etc
-
Petrochemistry: During the technological process of chemical
and oil refining, large amount of low voltage inverters used
for speed regulation, and small amount of high voltage and
high power electronic circuit equipments for starting, etc.
-
DC traction equipment: Electrical railway, light rail
vehicle, mine traction locomotive etc.
-
Other high capacity industrial DC power supply.
   2. AC/DC Arc EquipmentsÂ
-
AC/DC arc furnaces: Such as the Electric Arc Furnace in steel
mill, etc.
-
AC/DC arc welding machine: Automobile manufacturing, ship
building, heavy machinery manufacturing, etc.
   3. Power supply devices for special use
        High capacity
uninterruptible power supply, communication power supply, high
(low)Â Â Â Â Â Â Â Â Â Â Â
frequency power supply, etc. Such as bank, hospital,
semiconductor factory, program control exchange plant, remote
communications, data communication station, substation, military
installations, office buildings etc
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   4. Starting of the high capacity
electromotor and switching of the high capacity reactive
compensation.
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   5. High-precision automatic production
line: The production line itself does not produce harmonic, but
it is very sensitive to harmonic, so the active power filter
should be installed at the side of power supply to reduce
harmonic interference for production line.Â
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| Pays: |
China |
| N ° de modèle: |
WLD-APF
|
| Prix FOB: |
(Negotiable)
Obtenir le dernier prix
|
| Localité: |
China |
| Prix de commande minimale: |
- |
| Commande minimale: |
1set |
| Packaging Detail: |
- |
| Heure de livraison: |
- |
| Capacité de Fournir: |
1000sets |
| Payment Type: |
- |
| Groupe de produits : |
- |
