Study On Low-Power Grid-Connected Photovoltaic Generators And Maximum Power Point Tracking

Researching on grid-connected photovoltaic generators is important.Because it can solve many problems that human are facing such as energy crisis,environmental pollution and so on.Grid-connected photovoltaic generators has a very wide application.In more and more attention to sustainable human development today,solar energy is better than other energy in many part such as an inexhaustible supply and clean.This will make more and more people attention it.Solar energy will become the most hopeful energy to instead traditional energy.This paper includs the following contents:1.This paper analyses the principle of photovoltaic cells and a simulation model based on SIMULINK.This paper draws photovoltaic cells power output curve in a different load.2.This paper analyses the methods of the maximum power point tracking (MPPT) technology and give a detailed analysis to perturb & observe algorithms.This paper also give a detailed analysis to boost circuit and use it to achieve maximum power point tracking.This paper builds the maximum power tracking circuit model based on SIMULINK and gets a satisfying result.3.This paper analyses the disvantage of perturb & observe algorithms and give a ameliorative method.This paper builds this method's model based on SIMULINK and gets a satisfying result.4.This paper builds and analyses the main circuit of a photovoltaic power generation system. This paper builds the main circuit model based on SIMULINK and gets a satisfying result.