Improvement of maximum power point tracking for a new wind power system

Cui, Zongze; Song, Lei

doi:10.1109/iciea.2018.8397977

Cited by 3 publications

(2 citation statements)

References 15 publications

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“…In the simulations, both the mechanical power P m of the turbine and the electrical power P e that are injected into the grid are simulated. The mechanical and electrical power differ due to the losses in the system [17][18][19]. To reach maximum efficiency, these losses must be taken into account by the MPPT.…”

Section: Control Systemmentioning

confidence: 99%

The Impact of Pitch-To-Stall and Pitch-To-Feather Control on the Structural Loads and the Pitch Mechanism of a Wind Turbine

et al. 2020

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This article investigates the impact of the pitch-to-stall and pitch-to-feather control concepts on horizontal axis wind turbines (HAWTs) with different blade designs. Pitch-to-feather control is widely used to limit the power output of wind turbines in high wind speed conditions. However, stall control has not been taken forward in the industry because of the low predictability of stalled rotor aerodynamics. Despite this drawback, this article investigates the possible advantages of this control concept when compared to pitch-to-feather control with an emphasis on the control performance and its impact on the pitch mechanism and structural loads. In this study, three HAWTs with different blade designs, i.e., untwisted, stall-regulated, and pitch-regulated blades, are investigated. The control system is validated in both uniform and turbulent wind speed. The results show that pitch-to-stall control enhances the constant power control for wind turbines with untwisted and stall-regulated blade designs. Stall control alleviates the fore-aft tower loading and the blades flapwise moment of the wind turbine with stall-regulated blades in uniform winds. However, in turbulent winds, the flapwise moment increases to a certain extent as compared to pitch-to-feather control. Moreover, pitch-to-stall control considerably reduces the summed blade pitch movement, despite that it increases the risk of surface damage in the rolling bearings due to oscillating movements with a small amplitude.

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Section: Control Systemmentioning

confidence: 99%

The Impact of Pitch-To-Stall and Pitch-To-Feather Control on the Structural Loads and the Pitch Mechanism of a Wind Turbine

et al. 2020

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“…The BMGs prime interest is to exploit as much as possible RESs and trade in the electricity market only in emergency situations to achieve the autonomy indicators of self-consumption and self-coverage [57] imposed by regional grid regulations. Consequently, BMGs' PV panels and WTs are normally controlled via MPPT algorithms to extract the maximum power independently of external weather conditions [81], [82]. As a result, the power dispatch in BMGs is concentrated on the coordination of their ESSs, DSM and determining the amount of energy to be exchanged with the main grid.…”

Section: Power Dispatching and Electricity Market Trading [~1min -1h]mentioning

confidence: 99%