Overview
TSC SVG Mixed Power Factor Correction panel is a device connected in parallel with
the load to be compensated. The device is a controlled current source which
provides a current waveform in real time.
In our case they are high performance,
compact, flexible, modular and cost-effective active power filters (APF) that
provide an instantaneous and effective response to power quality problems in
low or high voltage electric power systems. They enable longer equipment
lifetime, higher process reliability, improved power system capacity and
stability, and reduced energy losses, complying with most demanding power
quality standards and grid codes.
Typical
Applications
SVGs have many
low and high voltage potential applications where their use offers many
benefits.
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Installations
with fast changing reactive power demand like electric arc furnaces and ball
mills
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Highly dynamic
loads where the power factor fluctuates rapidly or in big steps like cranes,
sawmill machinery, welding machines, etc.
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Correction of
leading power factor like in data centers, enabling back-up generators to more
easily synchronise with the network
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UPS systems.
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Solar and wind
turbine generators.
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Railway
electrification systems: Trains & trams
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Loads with low
power factor: Motors, cables, lightly loaded transformers, lighting, etc.
Responding
to System Variations
The increase of
non-linear and other challenging loads in electrical grids present unique power
quality challenges. As a result ZDDQ has developed a Hybrid Active Power
Factor Correction System that provides a cost effective and very fast
solution to power system variations enabling longer equipment life,
higher process reliability and reduced energy losses, complying with most demanding
power quality standards and grid codes.
ZDDQ's Hybrid PFC
system is a flexible, high performance and cost effective solution used to
mitigate power quality problems generated by the equipment installed in
electric power systems, enhancing equipment operating life-time, and improving
power system capacity. These Smart Active Power Quality hybrid systems can be
programmed to provide the following functions in real time:
-
Eliminate
harmonic currents and voltages.
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Power factor correction (lagging or leading).
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Reduction of voltage variations (sags and
swells).
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Voltage fluctuations (flicker) mitigation.
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Load balancing in three-phase systems.
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The systems have
the flexibility of a voltage range from 200V up to 690V
-
step-up transformer. Over 1 kV we use a step-up transformer.
Hybrid Active Power Factor Correction
ZDDQ's SVG Hybrid Active Power Factor Correction System
has many competitive Advantages:
Stepless &
Seemless output: No visible “steps” in the reactive power, achieving a better
performance than only using capacitor bank or reactor bank steps.
◆Complete power
quality improvement solution for low or high voltage applications including
real-time elimination of harmonics, flicker mitigation and load balancing.
◆Only one
CT-signal input required from the system: No need for duplicated CTs.
◆No System
Hunting. No need for extra controller for the capacitor bank or for the reactor
bank.
◆No need for
different step ratios: Capacitor banks can be built with all steps of the same
rating, making the design simple and needing only one type of capacitor unit in
stock. Steps can be of largest suitable rating to optimize costs and reduce
layout.
◆Two operation
modes: Ultra-fast mode for changing loads in open-loop, and PFC mode for
traditional closed-loop control.
◆Capacitive and
inductive real-time reactive power compensation: The HAPFC can also produce
inductive reactive power. This ensures that there will be no overcompensation
from steps or loads.
◆Stable control as
all power quality problems of the installation are managed by a single
controller.
◆Easy
installation, commissioning and operation with touchscreen HMI.
◆No risk of
harmonic amplification or resonance in the system.
◆Compact design
and easily expandable.
PRODUCTS
This technology
can also be referred to as:
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Active Power Factor Correction Compensator
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Static Var Generator (SVG)
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Advanced Static Var Generator (ASVG)
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Active Harmonic Filter
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Active Load Balancer
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Hybrid VAR Generators
APPLICATIONS
ZDDQ SVG hybrid power factor correction are widely used for fluctuating loads such as motors, variable frequency drives, melting furnace from Steel Rolling mills,Chemical industry,Cement plant, Suger plant, Textile, Hospitals, Hotels, Building segment,Automobile industry,Oil and gas industry, public grid etc.