Generalized load modeling with solid oxide fuel cell (SOFC) considered

With the development of smart grid, micro-grid and distribution generation, a great amount of distributed generators (DG) will be connected to distribution network. Generalized load modeling with DG considered has important theoretical value, as well as major operation significance. This paper based on Matlab/Simulink built the model of SOFC interfaced with distribution network, the external characteristics of which were also studied. The frame of the generalized load model of distribution network which contains SOFC can be obtained by adding a variable active power source to the fictitious bus of traditional synthesis load model (SLM). Three parameters to be identified, i.e. the proportion of SOFC relative to pure load, the proportion amplification constant and the integral amplification constant of power regulator should be added to that of SLM. The capability of characterization, of generalization, and stability of parameters identification of the proposed generalized load model was validated by a simple example.