| With today's society such as environmental pollution and energy depletion increasingly acute problem, change the energy structure has become the most important issue, at the same time in order to meet the urgent demand for energy. Solar and wind energy is one of the most extensive, while taking into account the two separate power in time and geographical limitations, so the two complement each other together form a new power generation system, is currently a hot research topic.This article describes the development of wind and solar power generation systems background, expressed the wind and solar power system at home and abroad the research status and development trend of wind and solar power generation system described the composition and working principle are discussed in detail the fan, photovoltaic arrays and operating principles and characteristics of the battery; determined in accordance with the fan on the ground, the capacity of solar cells and batteries, to ensure the premise of the load can run, but also took into account factors such as investment cost wind and solar power generation system to achieve the optimal combination. Taking into account the past use of the traditional inverter frequency step-up after class and electrical isolation of the shortcomings, we use high-frequency boost inverter technology. SG3525 DC part of the former level as the control center, after the class as the main control circuit PIC16F73 microcontroller chip, the use of unipolar SPWM control, low voltage DC input, standard electricity output.Inverter controller with disturbance rejection control device, and the simulation experiment, and the establishment of a circuit simulation model, using MATLAB / SMULINK of the control system simulation analysis achieved good results. |
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