Modeling and Decoupling Control of Grid-Connected Voltage Source Inverter for Wind Energy Applications

Abstract:

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This paper investigates the modeling and decoupling control of grid-connected voltage source inverter (GC-VSI) for wind energy conversion system (WECS) applications. Firstly, the typical configuration and operation principle of the direct-driven grid-connected WECS are analyzed. Then, by means of input-output modeling method and instantaneous active power theory, a time domain mathematical model of the GC-VSI is set up. Besides, in order to resolve the GC-VSI active current and reactive current cross-coupling nonlinear control problem, a vector decoupling control method for the GC-VSI firing pulse generation is deduced in the dq synchronous rotating coordinates. The proposed decoupling control method can realize the active power and reactive power of the GC-VSI injected into the grid are regulated independently. Finally, the performance of the proposed GC-VSI system is evaluated by using MATLAB/Simulink simulation.

Info:

Periodical:

Edited by:

Zhang Yushu

Pages:

369-373

DOI:

10.4028/www.scientific.net/AMR.213.369

Citation:

J. F. Mao et al., "Modeling and Decoupling Control of Grid-Connected Voltage Source Inverter for Wind Energy Applications", Advanced Materials Research, Vol. 213, pp. 369-373, 2011

Online since:

February 2011

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$35.00

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