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Development of Shunt-Type Three-Phase Active Power Filter with Novel Adaptive Control for Wind Generators.

Chen MH - ScientificWorldJournal (2015)

Bottom Line: The performance of the system was first simulated using MATLAB/Simulink, and the possibility of an adaptive digital low-pass filter eliminating current harmonics was confirmed in steady and transient states.Subsequently, a digital signal processor was used to implement an active power filter.Thus, the transient performance of the adaptive filter is superior to the traditional digital low-pass filter and is more economical because of its short computation time compared with other types of adaptive filters.

View Article: PubMed Central - PubMed

Affiliation: Department of Electrical Engineering, Ming Chi University of Technology, 84 Gungjuan Road, Taishan District, New Taipei City 24301, Taiwan.

ABSTRACT
This paper proposes a new adaptive filter for wind generators that combines instantaneous reactive power compensation technology and current prediction controller, and therefore this system is characterized by low harmonic distortion, high power factor, and small DC-link voltage variations during load disturbances. The performance of the system was first simulated using MATLAB/Simulink, and the possibility of an adaptive digital low-pass filter eliminating current harmonics was confirmed in steady and transient states. Subsequently, a digital signal processor was used to implement an active power filter. The experimental results indicate, that for the rated operation of 2 kVA, the system has a total harmonic distortion of current less than 5.0% and a power factor of 1.0 on the utility side. Thus, the transient performance of the adaptive filter is superior to the traditional digital low-pass filter and is more economical because of its short computation time compared with other types of adaptive filters.

No MeSH data available.


Related in: MedlinePlus

Experimental results of transient response of the proposed system with balanced nonlinear load: (a) phase voltage vaG of the wind generator; (b) nonlinear load current iaL; (c) active power filter current iaf; (d) line current iaG of the wind generator; (e) DC-link voltage vdc.
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fig9: Experimental results of transient response of the proposed system with balanced nonlinear load: (a) phase voltage vaG of the wind generator; (b) nonlinear load current iaL; (c) active power filter current iaf; (d) line current iaG of the wind generator; (e) DC-link voltage vdc.

Mentions: Figure 9 shows the transient response in the experiment when the wind speed was fixed. As illustrated in Figure 9, the transient period for the DC-link voltage vdc and line current of the wind generator is 56.1 ms. The proposed system demonstrates fast dynamic response for both compensating the current harmonics and establishing the DC-link voltage. The experimental results indicate that the proposed system can compensate current harmonics effectively and maintain excellent regulation of the DC-link voltage for balanced and unbalanced loads.


Development of Shunt-Type Three-Phase Active Power Filter with Novel Adaptive Control for Wind Generators.

Chen MH - ScientificWorldJournal (2015)

Experimental results of transient response of the proposed system with balanced nonlinear load: (a) phase voltage vaG of the wind generator; (b) nonlinear load current iaL; (c) active power filter current iaf; (d) line current iaG of the wind generator; (e) DC-link voltage vdc.
© Copyright Policy - open-access
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4587435&req=5

fig9: Experimental results of transient response of the proposed system with balanced nonlinear load: (a) phase voltage vaG of the wind generator; (b) nonlinear load current iaL; (c) active power filter current iaf; (d) line current iaG of the wind generator; (e) DC-link voltage vdc.
Mentions: Figure 9 shows the transient response in the experiment when the wind speed was fixed. As illustrated in Figure 9, the transient period for the DC-link voltage vdc and line current of the wind generator is 56.1 ms. The proposed system demonstrates fast dynamic response for both compensating the current harmonics and establishing the DC-link voltage. The experimental results indicate that the proposed system can compensate current harmonics effectively and maintain excellent regulation of the DC-link voltage for balanced and unbalanced loads.

Bottom Line: The performance of the system was first simulated using MATLAB/Simulink, and the possibility of an adaptive digital low-pass filter eliminating current harmonics was confirmed in steady and transient states.Subsequently, a digital signal processor was used to implement an active power filter.Thus, the transient performance of the adaptive filter is superior to the traditional digital low-pass filter and is more economical because of its short computation time compared with other types of adaptive filters.

View Article: PubMed Central - PubMed

Affiliation: Department of Electrical Engineering, Ming Chi University of Technology, 84 Gungjuan Road, Taishan District, New Taipei City 24301, Taiwan.

ABSTRACT
This paper proposes a new adaptive filter for wind generators that combines instantaneous reactive power compensation technology and current prediction controller, and therefore this system is characterized by low harmonic distortion, high power factor, and small DC-link voltage variations during load disturbances. The performance of the system was first simulated using MATLAB/Simulink, and the possibility of an adaptive digital low-pass filter eliminating current harmonics was confirmed in steady and transient states. Subsequently, a digital signal processor was used to implement an active power filter. The experimental results indicate, that for the rated operation of 2 kVA, the system has a total harmonic distortion of current less than 5.0% and a power factor of 1.0 on the utility side. Thus, the transient performance of the adaptive filter is superior to the traditional digital low-pass filter and is more economical because of its short computation time compared with other types of adaptive filters.

No MeSH data available.


Related in: MedlinePlus