Comparison of Hardware-in-the-Loop Control Methods for Wind Turbine Drive Trains on System Test Benches

Kaven, Lennard; Leisten, Christian; Basler, Maximilian; Jassmann, Uwe; Abel, Dirk

doi:10.23919/ecc54610.2021.9655054

Cited by 1 publication

(2 citation statements)

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“…1 Dynamic model of the controlled Wind Turbine [7] Fig. 2 Dynamic model of the controlled Wind Turbine emulated on a NTB via mHiL [3,9] K tion of results in HiL experiments in general, i.e. the error induced by the HiL control loop compared to the real experiment, is described in [6].…”

Section: Introductionmentioning

confidence: 99%

“…A further explanation for this bias may be provided later in this work. An evaluation of a mHiL controller with respect to the possibility of validating WT torque controllers is given in [9]. The possibility of testing drive train damping controllers using the generator torque is established on the basis of the phase delay induced by the mHiL control loop.…”

Section: Introductionmentioning

confidence: 99%

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Pitfalls of testing wind turbine control algorithms on nacelle test benches

Klein

Basler

Abel

2023

Forsch Ingenieurwes

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The validation and certification of wind turbines (WT) on nacelle test benches (NTB) is becoming increasingly important in the development process. While for certifiers the advantage lies in controlled test execution, for development departments it lies in testing as many system components as possible in a quasi-final prototype. However, the question arises which practical conditions must be fulfilled so that statements can also be made about WT control. In addition to the errors induced by a mechanical Hardware in the Loop (mHiL) system, the dynamic interactions between the WT controller and the NTB controller applying the mHiL concept are of interest. This analytical work based on simulations aims to systematically investigate how realistic the control behavior of a WT operated on a NTB is. For this purpose, the nominal behavior of a WT is compared with the operation on a NTB under realistic conditions and the resulting differences are subsequently reproduced in a synthetic load case. Finally, the differences are analyzed in terms of system theory. It is found that a frequency-dependent distorted behavior caused by operating the WT on a NTB is responsible for strong deviations compared to the WT operation in field. In the controller configuration studied, gain amplifications up to $$5.17\,\text{dB}$$ 5.17 dB are identified. The distortion is not exclusively caused by the mHiL closed loop behavior, but results from the interaction of all subsystems in both control loops. Therefore, its behavior is identified as a function of the system and controller parameters of both the WT and the NTB.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%