slide 1: How SVG Combines LC Reactive Compensation
Applies at the Advanced Manufacturing
I. Overview
With the development of modern industrial technology especially in the
automobile manufacturing industry there are many high-power spot welding
machines. The power factor of spot welding machines is low and it contains a
large amount of reactive power and a small amount of harmonics which has a
negative impact on the operation of the power system.
Load characteristics of spot welding machine:
1. The action time of spot welding machine is extremely fast the welding
duration is hundreds of milliseconds and the welding frequency is fast
2. During the welding process of spot welding machine according to the
different welding materials the welding current can reach several amperes to
thousands of amperes instantly which has a great impact on the power grid
3. During the welding process of spot welding machine huge reactive
power is produced which leads to the power factor of the grid is very low.
slide 2: II. Measurement data
Comparison of power grid data before and after SVGLC is put into
operation:
III. SFR series SVG combined with LC reactive power
compensation function introduction
SVG combined with LC reactive power compensation is a new type of power
electronic device for dynamic reactive power compensation. It can
compensate the dynamic reactive power in real time which can overcome the
shortcomings of traditional LC reactive power compensation and realize
reactive power compensation function. It is widely used in manufacturing
electric power metallurgy petroleum port chemical industry and mining
enterprises etc.
1. Quick response
Fast response is realized by SVG module Static Var GeneratorSVG fast
response time 50us full response time 15ms
2. Good compensation characteristics
3. Good compensation effect
slide 3: IV Design of SVG LC reactive power compensation scheme
V Project summary
It completely and effectively solves the rapid change of reactive power
compensation such as spot welding machines. The power factor at the
incoming cabinet of each transformer meets the requirements of the national
standard which purifies the power environment and ensures the safe and
stable operation of the equipment. Greatly improves the effective utilization of
electric energy reduces the loss of distribution lines increases the terminal
slide 4: voltage and prolongs the service life of cables and equipment.