The comparison of common control strategies in grid-connected double-fed wind generators

Chen, L. Y.; Li, Z. Y.

doi:10.1109/tencon.2013.6718995

Cited by 2 publications

(2 citation statements)

References 6 publications

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“…The sensitivity and complementary sensitivity can be calculated by (4)- (5). sp K and sp T are the proportional coefficients and the integration time constant, respectively.…”

Section: Vector Power Controlmentioning

confidence: 99%

“…The principle of vector power control is to utilize the phase lock loop (PLL) to track the angle of grid voltage or stator flux. The angle produced by PLL is used as the Park transform angle to decouple active power and reactive power control [5]. However, the vector power control is based on the assumption of a strong AC grid, and its robustness and performance are dependent on the accuracy and responsiveness of PLL [6].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Critical Short Circuit Ratio Analysis on DFIG Wind Farm with Vector Power Control and Synchronized Control

Hong¹,

Xin²,

Liu³

et al. 2016

Journal of Electrical Engineering and Technology

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-The introduction of renewable energy sources into the AC grid can change and weaken the strength of the grid, which will in turn affect the stability and robustness of the doubly-fed induction generator (DFIG) wind farm. When integrated with weak grids, the DFIG wind turbine with vector power control often suffers from poor performance and robustness, while the DFIG wind turbine with synchronized control provides better stability. This paper investigates the critical short circuit ratios of DFIG wind turbine with vector power control and synchronized control, to analyze the stability boundary of the DFIG wind turbine. Frequency domain methods based on sensitivity and complementary sensitivity of transfer matrix are used to investigate the stability boundary conditions. The critical capacity of DFIG wind farm with conventional vector power control at a certain point of common coupling (PCC) is obtained and is further increased by employing synchronized control properly. The stability boundary is validated by electromagnetic transient simulation of an offshore wind farm connected to a real regional grid.

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“…The sensitivity and complementary sensitivity can be calculated by (4)- (5). sp K and sp T are the proportional coefficients and the integration time constant, respectively.…”

Section: Vector Power Controlmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%