Showing papers by "M Maarten Steinbuch published in 1986"
01 Jan 1986
TL;DR: A non-linear dynamic model of a wind turbine with synchronous generator and AC/ DC/AC conversion has been set up, which is presented here and it is shown that the wind turbine has very fast as well as very slow dynamics.
Abstract: On behalf of the operation of the Dutch National Wind Farm, which is under construction now, a study is being performed on the control system design of variable speed wind turbines. To realize this a non-linear dynamic model of a wind turbine with synchronous generator and AC/ DC/AC conversion has been set up, which is presented here. The specific dynamic coupling between generator and DC link results in an implicit set of equations. By using an expression for the load angle of the generator the model is made explicit, which makes it suitable for further analysis. With non-linear simulations and eigenvalue-analysis it is shown that the wind turbine has very fast as well as very slow dynamics. There is also a slightly damped oscillation. Using a linear input-output model the interaction has been investigated. Though speed and direct current are stationary decoupled, there is a large amount of dynamic interaction between them. Control systems have to take this interaction into account.
8 citations
01 Jan 1986
TL;DR: In this article, the dynamic performance of a wind turbine with a synchronous generator and AC/DC/AC conversion is investigated and it is shown that the sensitivity of the wind turbine to changes of the pitch angle depends largely on operating conditions and thus enhances the need for robust or adaptive control.
Abstract: An appropriate controller must be designed if the desired performance of a wind turbine with a synchronous generator and AC/DC/AC conversion is to be achieved The dynamic performance of such a system was therefore investigated The wind turbine was simulated at several operating points, using a detailed nonlinear model It is shown that the sensitivity of the wind turbine to changes of the pitch angle depends largely on the operating conditions and thus enhances the need for robust or adaptive control The interaction between the mechanical and electrical parts was also investigated The characteristic dynamics are quantified with an eigenvalue analysis which also shows that the system has both very fast and very slow dynamics The results obtained indicate the need for more-systematic control design procedures dealing with all relevant dynamics
6 citations