UPFC PLUS
2Pages

Catalog excerpts

UPFC PLUS Fast, efficient and future-proof stabilization of AC grids As a global leader in power transmission technology and a long-standing, trusted partner of public entities and private enterprises, such as utilities and grid operators, we have always been in the vanguard of technical development. We look back on a long history of trendsetting in power transmission projects around the world that have proven time and time again the reliability and outstanding quality of our products, solutions and services. Energy ecosystems around the world are in a state of profound change. Reliable electricity is a basic requirement for societies. While details may vary from country to country, and even from supply area to supply area, there are challenges for grid operators and power producers. Underdeveloped or weak grids, mature and ageing infrastructure and liberalized markets including a growing share of alternative energy sources, leading to the associated disruption to business models. Modern challenges for a legacy power grid Increasingly decentralized energy systems and the associated fluctuating power flows pose new challenges for the existing, mature grid infrastructure. Thermal overloads in the lines and a growing number of cases in which frequency and voltage come quickly critically close to acceptable range limits, or even exceed them, threaten grid stability and the transmission infrastructure, and often require costly redispatch intervention to deal with current and voltage factors. UPFC PLUS (Unified Power Flow Controller) - The missing piece to the puzzle To effectively manage the transmission system and provide the stability and resilience required means operators must better utilise existing assets. This can be achieved by employing the dynamic load flow management solution with UPFC PLUS which is extremely faster to control and can manage both series and parallel compensation to keep lines within the n-1 criterion and the electricity flowing.

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Technical Advantages The UPFC PLUS can balance load flow in the AC grid, rapidly bypass overloaded line sections, provide reactive power and dynamic voltage control, and utilise assets safely closer to physical limits. The UPFC PLUS is arranged as two voltage sources. One in parallel that controls voltage and one in series connected to the AC line. It provides reactive power compensation, voltage control at shunt and active power load flow control at the series side in one unit. Compared to traditional stationary power flow controllers, UPFC PLUS controls the load flow in just milliseconds....

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