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Turbine Load Control

Turbine Load Control
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Siemens Turbine Load Control 2.0 Intelligently controlling wind turbine loading Siemens Turbine Load Control 2.0 (TLC®) actively controls the wind turbine loading based on real-time operating conditions to maximize the annual energy production over the life of the wind power plant. Ideally, wind turbines would be designed to perfectly match the project site conditions. In practice, however, the wind turbine design specifications rarely match wind conditions exactly. The result is a compromise between two basic options: • apply a smaller rotor that can endure all of the site conditions and sacrifice annual energy production • apply a larger rotor with increased annual energy production and control occasional overloading with a traditional sector management system The wind turbine sector management creates a downside by shutting down the wind turbine under predefined conditions, such as occasional strong winds from certain directions. This can cause grid instability, unpredictability, and annual energy production erosion. TLC® is an intelligent turbine control system which dynamically controls the wind turbine based on realtime wind conditions, allowing it to operate with only marginal or moderate reduction in power output in high load conditions. When Siemens wind turbines are equipped with TLC®, some projects can utilize larger rotor diameters and help maximize the annual energy production without exceeding loads, and without the grid instability introduced by traditional sector management systems. Answers for energy.

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strong wind Prevailing wind strong wind Prevailing wind Figure 1: Without TLCS Figure 2: With TLCS Controlling wind turbine loads With traditional sector management, wind turbines will typically shut down under predefined conditions, such as occasional strong wind from certain directions (Fig. 1). TLC® intelligently alters the control settings in accordance with the wind conditions and keeps the wind turbines in operation while remaining load-neutral Improved AEP by application of a larger rotor diameter and limiting shutdowns caused by wind turbine overloading Increased grid stability by...

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