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The mechanical torque input into the wind turbine drive train is a very useful measurement for tests performed on a test bench. To ensure the accuracy and the reliability, an accurate calibration of the torque measurement must be carried out and repeated within a certain period of time. However, owing to the high torque level and large structure size, such a calibration is both expensive and time...
This paper presents the design and implementation of a robust drive train torque control for rotor inertia emulation in a dynamometer test bench application. The controller is part of a hardware-in-the-loop (HiL) framework for a 50 kW small test rig that enables a real-time interaction between test rig drive train and a rotor model. The control objective is to compensate undesired dynamics of the...
This paper presents the design and implementation of a state-feedback control structure for active damping of drive train torsional oscillations in a 10 MW ground test facility for complete wind turbine nacelles. It is the rotor inertia emulation requirement for hardware-in-the-loop testing of wind turbines that introduces a high dynamic performance demand of up to 20 Hz for the driving torque application...
This paper presents a concept for hardware-in-the-loop (HiL) drive train control of a 10 MW full-scale ground test facility for wind energy converters(WEC). This is to enable realistic emulation of the missing rotor torque, in order to provide a realistic test environment under load conditions comparable to those in the field. The HiL framework consists of a dynamic rotor model coupled with the test...
Diabetes mellitus, a situation resulting from the inability of the pancreas in controlling blood glucose level, can lead to serious long-term complications and death. In this paper, the model of type-1 diabetes mellitus has been studied considering the inputs of the system which are daily meals and the amount of insulin injected. With the help of particle swarm optimization algorithm and the use of...
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