Static Var Generator SVG And FC Combination Optimization Of Reactive Power And Harmonic Control
Brand Name:FGI
Certification:CE
Minimum Order Quantity:1
Place of Origin:China
Supply Ability:300sets per month
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Optimization Of Reactive Power And Harmonic Control With Static Var Generator SVG And FC Combination
Compensation Method of Dynamic and static combination
(SVG+FC) COMPENSATION Method
1.Overview
(1) Although SVG can realize reactive power compensation and
harmonic control at the same time, in the case of high harmonic
content, it’s very high investment cost to use SVG alone to realize
harmonic control.
(2) Frequent changes of high power load will cause severe
disturbance to the grid, such as electricarc furnace, electrified
railway,
medium frequency furnace, rolling, photovoltaic and wind power
generation occasions and so on. This kind of impact load will cause
the voltage fluctuation of the grid. Even a small power electric
arc furnace is connected to a smaller grid, the voltage
fluctuation, flicker
(sometimes also includes frequency fluctuations) and the
three-phase voltage unbalance are caused, which is harmful to other
users of
grid.
(3) The combination of SVG and FC is a kind of cost-effective
optimization compensation scheme, which not only can filter out the
harmonic, but also to provide partial capacitive reactive power,
and the whole system of equipment investment is reduced.
2.Primary diagram
3. Typical applications
The periodic variation of the high power rolling mill load can lead
to severe fluctuation of voltage, especially when multiple rolling
mills run at the same time. The randomness of the rolling mill is
increased, and the long period flicker is more serious. The
traditional
compensation device cannot improve the power factor, because it
cannot follow the load change, which even increased the voltage
fluctuations.
In power system with the above load, the active dynamic reactive
power compensation device with fast compensation function and
filter function is required to manage the power quality and reduce
the interference and pollution of the power grid.
Various dynamic compensation methods have their advantages and
disadvantages. The active dynamic reactive power compensation
device (SVG+FC) is better than other control methods in terms of
investment, performance and compensation effect. Active dynamic
reactive power compensation device includes static var generator
(SVG) and filter capacitor (FC). The static var generator (SVG) can
provide continuous inductive and capacitive reactive power, which
can effectively suppress the voltage fluctuation and flicker and
improve
the three-phase unbalance. The filter capacitor (FC) filters out
the harmonics to reduce the pollution for grid and provide the
required
capacitive reactive power for the system.
Due to the advantages of active power reactive power compensation
device, more than 90% wind power generation and photovoltaic
power generation have used this compensation device in recent
years. It is the most ideal dynamic reactive power compensation
equipment
to ensure the grid with stable voltage and low harmonics.
Static Var Generator SVG And FC Combination Optimization Of Reactive Power And Harmonic Control
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