During steel rolling mill operations, the massive reactive power impacts generated can lead to a significant drop in grid power factor. The rapid fluctuations of active and reactive power also induce severe voltage oscillations and flicker in the power grid. Furthermore, the rectifier circuit-powered drive motors produce substantial harmonic pollution. These issues not only reduce operational efficiency and product quality but may also cause equipment damage and production downtime. To address these critical challenges, Static Var Generators (SVG) provide an efficient and reliable power quality enhancement solution.
In the field of power quality, COENG offers a variety of SVG devices with different cooling methods, including air cooling, water cooling, and air conditioning cooling. These devices have a wide capacity range, from 1MVAr to 140MVAr, and support parallel expansion for multiple units, effectively addressing various power quality issues across different applications. Recently, SVG technology was successfully implemented at a specific steel rolling mill site, demonstrating its critical role in enhancing production efficiency through dynamic reactive power compensation.
By equipping SVGs, steel and metallurgy enterprises can achieve the following benefits:
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Power Factor Improvement: The power factor can be maintained above 0.95, effectively optimizing the operation of the power grid.
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Enhanced Power Quality: Voltage flicker is effectively controlled, harmonic pollution is reduced, and power quality is comprehensively guaranteed.
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Stable Operation of Rolling Mills: The output of the rolling mills becomes more uniform, significantly improving product quality and production efficiency.
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Reduced Electricity Costs: Decreased electricity consumption leads to substantial savings on energy bills, benefiting the economic growth of the enterprise.
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Extended Equipment Lifespan: Reduced voltage shocks on electrical components lower the failure rate of equipment, decreasing maintenance and replacement frequency, thus extending service life and further reducing operational costs for the enterprise.
SVG, as an advanced reactive power compensation device, offers several unique advantages:
With the continuous promotion and application of SVG technology, COENG will uphold its spirit of innovation and continue to refine its technology and products, committed to providing higher quality and more efficient reactive power compensation solutions. The company will continue to deepen its efforts in renewable energy fields such as wind and solar power, while also playing a significant role in various industries including coal mining, oil and petrochemicals, and steel metallurgy, helping enterprises achieve efficient, energy-saving, and environmentally friendly production goals.
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Fast Response Speed: It can respond to changes in reactive power within a very short time, with a response speed of up to 5 ms, allowing for quick adaptation to reactive shocks from rolling mills.
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High Compensation Accuracy: It provides precise reactive power compensation based on the actual reactive demand of the rolling mills, minimizing reactive current in the power grid and reducing grid losses.
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Wide Operating Range: It operates effectively from rated inductive to rated capacitive ranges, unaffected by fluctuations in grid voltage. It not only has a certain suppression capability for voltage flicker but also filters out harmonics in the grid.
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Compact Footprint: It occupies only 50% of the space of traditional devices, or even less, saving valuable production space for enterprises.
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Strong Scalability: SVG capacity can be flexibly configured according to demand, making it easy to upgrade and modify existing equipment to meet the evolving needs of the enterprise.