Based on the strategy, applying field-oriented vector transformation control technique, the whole control system of VSCF wind-power generation is formed.
At last,a stator-flux oriented vector control model and a control system for tracking the maximum power point was built based on the investigation of the decoupling between the excited current and the torque current and the requirements on the doubly-fed induction generator control for tracking the maximum power point in variable speed constant frequency(VSCF)wind-power generation system.
The economic performance of wind-power farm operation is difficult to be evaluated comprehensively and objectively by a single evaluation index because of the characteristics of wind-power generation industry and management of wind-power farm operation.
Correctness of the theoretical analysis and feasibility of the proposed unbalanced control scheme are validated by simulation on a 1.5-MW DFIG wind power generation system.
Offshore wind power generation represents a chance to supply energy in a more sustainable way; however, the ecological risks associated with the construction and operation of offshore wind farms are still largely unknown.
Because the centralized development mode of wind power was adopted, the quick fluctuation of wind speed will influence the voltage and frequency stability of local power grid.
The transformation depends on the combined effect of the non-dissipative forces such as refraction, shoaling and diffraction, and the dissipative-generative forces such as wave breaking, wind generation and bottom friction.
A selected typical self-consistent model for a stationary C-star shell demonstrates the characteristic wind structure and gives insight into the close nonlinear interplay between dust formation and wind generation.
The results of the 1989-1994 radioastronomical observations combined with the optical corona data show that the phenomena in the immediate vicinity of the solar surface play a dominant role in the hypersonic solar wind generation.
Short-term forecasting of wind generation requires a model of the function for the conversion of meteorological variables (mainly wind speed) to power production.