A practical method of modeling wind generator control systems for network simulation using Matlab-Simulink is presented. The interface developed between PSS/E and Matlab-Simulink allows the models generated to be used directly in PSS/E dynamic simulation. Fundamentally, modeling involves understanding the dynamics of equipments to be modeled and deriving the differential and algebraic equations which are coded using a high level computing language. For network elements resilient to change, the latter remains the method.
However, wind generator controls change rapidly as new designs emerge in the market place and different manufacturers compete against each other with better designs. Detailed dynamic models of these controllers are required for performing transient stability studies on networks. It would benefit engineers if these models can be created and incorporated quickly and effectively in networks for transient stability studies using a power system tool like PSS/E. It is important that this interface can - (1) establish the correct steady-state network conditions for
the Simulink wind controller models, (2) establish the correct time-step solution between the Simulink wind control models and the network and (3) deal with the different configurations and models used in a network with embedded wind generation. The interface has to handle and recognize these different processes and provide a coordinated interchange of data as required in an efficient manner to achieve acceptable performance. Illustration of a dynamic simulation on a network is carried out using PSS/E with Simulink wind control models of a GE 1.5 MW wind generator with tabulated performance for comparison.
download seminars report here: