Design And Simulation Of The Control System Of The Small Off-Grid Wind Power Generation Device

Firstly Wind energy is a kind energy source of clean, environmental protection, and renewable, wind power generation can use the wind energy effectively, the small off-grid wind power generation solved the difficulty of electric network that cannot reach the outlying area like remote mountain areas, solitary island, high mountain, desert and so on, this paper firstly analyzed the characteristics and structure of the small off-grid wind power generation, as a result of the randomicity of the wind energy, the generation output characteristic will change a lot accordingly, the output electric energy cannot be provided to the load directly.In order to make the wind power system can provide reliable and sustained electric energy when no wind, and when the wind is big it cannot go so far to bring about wind power generation galloping and do damage to the load, so the wind power generator output characteristic must be distribute and control reasonablely, adding accumulator battery in the small off-grid wind power generation system, not only can raise wind energy efficiency, but also can provide continuous power.This paper by analyzing the modules of the wind power system, proposed the structural design of the small off-grid wind power generation, for the lectotype of the windmill, the converting circuit of the DC-DC, the charge-discharge of the accumulator battery, the picking of the off-grid inverter, using the AT89C52single chip do the control, to justifiable distribute the electric energy among the windmill, accumulator battery and the load, and using Saber and PROTEUS to emulate the detected circuit voltage and current.