A Coordinated Control Method to Smooth Wind Power Fluctuations of a PMSG-Based WECS

Uehara, Akie; Anbalagan, Pratap; Goya, Tomonori; Senjyu, Tomonobu; Yona, Atsushi; Urasaki, Naomitsu; Funabashi, Toshihisa

doi:10.1109/tec.2011.2107912

Cited by 302 publications

(169 citation statements)

References 15 publications

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“…p C λ β is the power coefficient, which is a function of the tip-speed ratio, λ , and the pitch angle, β [15]. Because the wind speed depends on the natural and meteorological conditions, the WT output power essentially fluctuates.…”

Section: Wind Power Fluctuationmentioning

confidence: 99%

Optimal Power Control Strategy for Wind Farm with Energy Storage System

Nguyen¹,

Lee²

2017

Journal of Electrical Engineering and Technology

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-The use of energy storage systems (ESSs) has become a feasible solution to solve the wind power intermittency issue. However, the use of ESSs increases the system cost significantly. In this paper, an optimal power flow control scheme to minimize the ESS capacity is proposed by using the zero-phase delay low-pass filter which can eliminate the phase delay between the dispatch power and the wind power. In addition, the filter time constant is optimized at the beginning of each dispatching interval to ensure the fluctuation mitigation requirement imposed by the grid code with a minimal ESS capacity. And also, a short-term power dispatch control algorithm is developed suitable for the proposed power dispatch based on the zero-phase delay low-pass filter with the predetermined ESS capacity. In order to verify the effectiveness of the proposed power management approach, case studies are carried out by using a 3-MW wind turbine with real wind speed data measured on Jeju Island.

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Section: Wind Power Fluctuationmentioning

confidence: 99%

Optimal Power Control Strategy for Wind Farm with Energy Storage System

Nguyen¹,

Lee²

2017

Journal of Electrical Engineering and Technology

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“…Typically, the motor side converter (MSC) works as a rectifier and controls the active and reactive power output of the PMSG. Meanwhile, the grid side converter (GSC) works as an inverter, maintains the DC-link voltage, and controls the reactive power exchange between the generator and the grid [12][13][14][15]. The DC chopper circuit, which consists of power electronic devices and unloading resistors connected in series, is used to maintain a stable DC-link voltage during grid faults.…”

Section: Configuration Of Vsc-hvdc-based Pmsg Wind Power Systemmentioning

confidence: 99%

Coordinated Control Strategies of VSC-HVDC-Based Wind Power Systems for Low Voltage Ride Through

Zhang

et al. 2015

Energies

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Abstract:The Voltage Source Converter-HVDC (VSC-HVDC) system applied to wind power generation can solve large scale wind farm grid-connection and long distance transmission problems. However, the low voltage ride through (LVRT) of the VSC-HVDC connected wind farm is a key technology issue that must be solved, and it is currently lacking an economic and effective solution. In this paper, a LVRT coordinated control strategy is proposed for the VSC-HVDC-based wind power system. In this strategy, the operation and control of VSC-HVDC and wind farm during the grid fault period is improved. The VSC-HVDC system not only provides reactive power support to the grid, but also effectively maintains the power balance and DC voltage stability by reducing wind-farm power output, without increasing the equipment investment. Correspondingly, to eliminate the influence on permanent magnet synchronous generator (PMSG)-based wind turbine (WT) systems, a hierarchical control strategy is designed. The speed and validity of the proposed LVRT coordinated control strategy and hierarchical control strategy were verified by MATLAB/Simulink simulations.

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“…Vector control techniques have been well developed for PMSG using back-to-back PWM converters [23][24][25][26][27][28]. Two vector control schemes are designed respectively for the generator-side and grid-side PWM converters, as shown in Figure 1.…”

Section: Control Schemesmentioning

confidence: 99%

Flicker Mitigation by Speed Control of Permanent Magnet Synchronous Generator Variable-Speed Wind Turbines

Zhang

Chen

et al. 2013

Energies

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Grid-connected wind turbines are fluctuating power sources that may produce flicker during continuous operation. This paper presents a simulation model of a MW-level variable speed wind turbine with a full-scale back-to-back power converter and permanent magnet synchronous generator (PMSG) developed in the simulation tool of PSCAD/EMTDC. Flicker emission of this system is investigated. The 3p (three times per revolution) power oscillation due to wind shear and tower shadow effects is the significant part in the flicker emission of variable speed wind turbines with PMSG during continuous operation. A new method of flicker mitigation by controlling the rotational speed is proposed. It smoothes the 3p active power oscillations from wind shear and tower shadow effects of the wind turbine by varying the rotational speed of the PMSG. Simulation results show that damping the 3p active power oscillation by using the flicker mitigation speed controller is an effective means for flicker mitigation of variable speed wind turbines with full-scale back-to-back power converters and PMSG during continuous operation.

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A Coordinated Control Method to Smooth Wind Power Fluctuations of a PMSG-Based WECS

Cited by 302 publications

References 15 publications

Optimal Power Control Strategy for Wind Farm with Energy Storage System

Optimal Power Control Strategy for Wind Farm with Energy Storage System

Coordinated Control Strategies of VSC-HVDC-Based Wind Power Systems for Low Voltage Ride Through

Flicker Mitigation by Speed Control of Permanent Magnet Synchronous Generator Variable-Speed Wind Turbines

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