Impact of wind generation on load modeling of distribution network

Distributed resources (such as wind turbines) can provide power to local loads in the electrical distribution system as well as benefits such as improved reliability. As more wind energy is connected to utility systems, it becomes important to understand and manage the impact of wind generation on system operations. This paper studies the impact of wind generation on load modeling of distribution network based on MATLAB simulation tools and theory of measurement-based method. It is pointed out that the synthetic load of distribution network including wind generation can be described by the generalized composite load model of asynchronous machine in parallel with static load. In order to exactly reflect the influence of wind generation on composite load model, the value of proportion of dynamic load must be extended to any real number. The validity of this composite load model with any proportion of dynamic load is testified by modeling of three typical operation styles under different capacity proportions of wind generation and load level in this paper.