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A hybrid isolated microgrid is proposed, including PV power, diesel generator system, load and other subsystems.. Based the equivalent circuit and output characteristics of photovoltaic cells, PV model has been established and maximum power point tracking(MPPT) has been implemented to make full use of solar energy. Diesel model has been established, base on it PID load frequency compensation control...
The direct-drive wind turbine has become a focus recently for wind power generation because it has many advantages, such as simple construction, high reliability and so on. In this paper, a permanent magnet wind power generation system based on coordination control of double PWM is presented. And one dynamic model of permanent magnet synchronous generator (PMSG) is established on the basis of taking...
The main contribution of this paper is the development of hybrid model predictive control and fault detection strategy for wind energy conversion system (WECS) based on mixed logic dynamic (MLD) model framework. The MLD model for WECS including multiple work regions is established. Also the hybrid model predictive control method based on the MLD model of WECS is adopted to implement the variable speed...
Simulation model of micro-grid including a direct-drive wind power generation, two sets of power-controlled distributed generations (DGs) and a three-phase fault module was investigated in Matlab/simulink. Based on the constructed model, the operating process switched from island mode to grid-connected mode was simulated and the voltage variance signal was detected with Daubechies(Db) wavelet. The...
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